CN202426514U - Human body physiological parameter detecting equipment of space station - Google Patents

Abstract

The utility model discloses human body physiological parameter detecting equipment of a space station. The human body physiological parameter detecting equipment comprises a mechanical arm, a hard flat plate is arranged at one end of the mechanical arm and is provided with a plurality of pressure sensors capable of enclosing a region with the certain area, fixing straps for fixing the body of a testee are arranged on the hard flat plate, a supporting plate is arranged on the pressure sensors, space for holding the body of the testee is formed between the fixing straps and the supporting plate, the pressure sensors are connected to a single chip microcomputer module through a signal conditioning module, and the signal chip microcomputer module is connected with an upper computer. The human body physiological parameter detecting equipment is simple in structure, low in cost and convenient in use, fills a gap in the aspect of gravity center detection when an astronaut is in a zero-gravity environment, and plays an important role in developing aerospace business.

Description

A kind of space station human body physiological parameter checkout equipment

Technical field

This utility model relates to the human body physiological parameter checkout equipment under the weightlessness of a kind of space station.

Background technology

The designation of emission that No. one, Heavenly Palace China and has been had the ability of setting up preliminary space station, and national planning is built up the manned space station about the year two thousand twenty.When increasing spaceman and space intimate contact; When carrying human sacred mission, their weightlessness of space can cause a series of physiological change, even pathological reaction or disease occur; Physical and mental health to the spacefarer impacts, so the spaceman physical examination is very necessary.Long-time stop can cause the variation of a plurality of system of body generation adaptive change and some Pathophysiology character in the space flight weightlessness; Wherein maximum to spaceman health and safety relation with weightlessness again to the harmful effect of systems such as cardiovascular, muscle, bone, so also paid attention to most.In order to reduce the spacefarer owing to the weightless physiological change that causes; Keep as the health status the earth; The existing detection system that a lot of spaceman physiological parameters occurred detects the parameter of spaceman in the space station, thereby formulates the suitable training plan." Blood stasis " in disturbance of blood circulation during the weightlessness and the traditional Chinese medical science is similar; After disturbance of blood circulation occurring; Physiological parameters such as the body weight of spaceman, breathing possibly not change; Have only position of centre of gravity that variation has taken place, and still be a blank at present, also do not have a kind of like this equipment to detect the center of gravity of spaceman in the center of gravity context of detection of spaceman.

Summary of the invention

Goal of the invention: the purpose of this utility model is to fill up the blank of center of gravity context of detection under the weightlessness of the existing space station of spaceman physio-parameter detection system, and a kind of human body physiological parameter checkout equipment is provided.

In order to solve the problems of the technologies described above, this utility model has adopted following technical scheme:

A kind of space station human body physiological parameter checkout equipment; Comprise mechanical arm; End at mechanical arm is provided with hard plate, and some pressure transducers that can surround certain surface area are set on hard plate, also is provided with the fixing band that is used for fixing the testee body on the hard plate; Pressure transducer is provided with gripper shoe, forms the space that holds the testee trunk between fixing band and the gripper shoe; Pressure transducer connects one-chip computer module through the signal condition module, and one-chip computer module connects host computer.

Wherein, from the stiff end to the movable end, be followed successively by first revolute pair, second revolute pair and the 3rd revolute pair on the said mechanical arm, the 3rd revolute pair end is fixed with hard plate.

Wherein, from the stiff end to the movable end, be followed successively by revolute pair, first moving sets and second moving sets on the said mechanical arm, the said second moving sets end is fixed with hard plate.

Wherein, the number of said pressure transducer is four, and four pressure transducers rectangular arranging on hard plate.

Wherein, said fixing band is two, is parallel to each other between two fixing bands or arranged in a crossed manner.

Beneficial effect: this utility model adopts the pressure transducer that is installed on the terminal hard plate of mechanical arm to detect gravity center of human body's under the weightlessness method, has realized the innovation of traditional detection center of gravity method.Through fixing band testee is fixed near the pick off, sends the motion that corresponding motor drive signal is come the driving device arm, move thereby promote testee by single-chip microcomputer; Gather the output signal of pressure transducer and submit to single-chip microcomputer to carry out data acquisition and transmission process, the center of gravity calculation computed in software through host computer goes out the subpoint coordinate of testee center of gravity on hard plate at last.The utlity model has characteristics simple in structure, with low cost and easy to use, filled up the blank of center of gravity context of detection under weightlessness of spaceman, significant for the development of aerospace industry.

Description of drawings

Fig. 1 is the sketch map of this utility model space station human body physiological parameter checkout equipment embodiment one.

Fig. 2 is the flow chart of this utility model measuring method.

Fig. 3 is the pressure transducer distribution schematic diagram on the hard plate of this utility model embodiment one.

Fig. 4 is the force analysis sketch map of the hard plate of this utility model embodiment one.

Fig. 5 is the sketch map of the embodiment two of this utility model mechanical arm.

Fig. 6 is the distribution schematic diagram of the pressure transducer embodiment two on this utility model hard plate.

The specific embodiment:

Below in conjunction with accompanying drawing this utility model is done explanation further.

Embodiment one

Like Fig. 1, shown in 2 and 3; The space station human body physiological parameter checkout equipment of this utility model comprises an end fixed mechanical arm; Another movable end at mechanical arm is fixed with quadrate hard plate 1, and four pressure transducers 2 and two cross one another fixing bands 3 are set on hard plate 1, and pressure transducer 2 is rectangular arranging on hard plate 1; Be the summit with each pressure transducer 2 promptly, the geometric figure that line surrounded is a rectangle.Described pressure transducer 2 is three at least, because when detecting, hard plate 1 probably is positioned at the testee waist; Waist is the center of gravity place of people under normal condition, but under weightlessness, the gravity center of human body can change; Near but position waist also; In order to find position of centre of gravity, must could form area by three pressure transducers 2, center of gravity is located within this area.This utility model the best selects for use four to form orthogonal pressure transducer 2, but also can adopt six, eight pressure transducers of composition rule shape, forms regular hexagon or rectangle, and is as shown in Figure 6.

A gripper shoe 4 is set on each pressure transducer 2, forms the space that holds the testee trunk between fixing band 3 and the gripper shoe 4.Each pressure transducer 2 all connects one-chip computer module 6 through signal condition module 5, and one-chip computer module 6 connects host computer 7.

Mechanical arm mainly is for testee provides stable acceleration, promotes the testee motion, and then obtains the counteracting force that testee imposes on pressure transducer 2.So, so long as can for testee provides the mechanical arm structure of the constant acceleration of space unspecified angle can.

The mechanical arm of the said embodiment of Fig. 1 can provide three degree of freedom in the space station, comprise two rotational freedoms and a translation freedoms.Mechanical arm comprises the supporting base 8 that is fixed on the horizontal plane, and revoliving arm 9 is set on supporting base 8, and revoliving arm 9 can rotate freely for 360 ° around supporting base 8 along continuous straight runs, constitutes first revolute pair, and the axis of first revolute pair is vertical with horizontal plane; The end of revoliving arm 9 is hinged with an end of big pitch arm 10, constitutes second revolute pair, the axis normal of the axis of second revolute pair and first revolute pair; The other end of big pitch arm 10 and an end of little pitch arm 11 are hinged, constitute the 3rd revolute pair, and the axis of the 3rd revolute pair hangs down parallel with the axis of second revolute pair; Hard plate 1 is arranged on the other end of little pitch arm 11, and the axis of little pitch arm 11 is vertical with the plane of hard plate 1.

In the present embodiment, first drive motors 12 is set, second drive motors 13 is set in the hinged place of big pitch arm 10 and little pitch arm 11 in the hinged place of revoliving arm 9 and big pitch arm 10; First drive motors 12 can drive big pitch arm 10 and freely rotate around its hinged end with revoliving arm 9, second drive motors 13 can drive little pitch arm 11 center on itself and greatly hinged end of pitch arm 10 freely rotate.First drive motors 12 is connected host computer 7 through one-chip computer module 6 respectively with second drive motors 13, unifies control by host computer 7.

As shown in Figure 4, it is following to utilize embodiment one described space station human body physiological parameter checkout equipment to measure gravity center of human body's method:

(1) the testee trunk enters between fixing band 3 and the gripper shoe 4, and keeps certain interval with gripper shoe 4.

(2) send to one-chip computer module 6 instructions through host computer 7, one-chip computer module 6 sends and drives the rotation that signal drives first drive motors 12 and second drive motors 13 then, promotes the testee motion thereby drive hard plate 1 with constant acceleration; Testee can impose on pressure transducer 2 counteracting forces in motor process; Each pressure transducer 2 outputs and the linear voltage signal of pressure signal; These voltage signals carry out filtering, amplification through signal condition module 5, send into one-chip computer module 6 then; The voltage signal that one-chip computer module 6 will be nursed one's health carries out the AD conversion, is transferred to host computer 7 at last and carries out position of centre of gravity calculating.

The power that testee is applied by mechanical arm is constant, so testing process time length no matter, the pressure size that each sensor transmissions is come is invariable all the time.

(3) the calculating principle of testee position of centre of gravity is: the center with hard plate 1 is a zero, and the coordinate of four pressure transducers 2 on hard plate 1 is respectively (X ₁, Y ₁), (X ₂, Y ₂), (C ₃, Y ₃) and (X ₄, Y ₄), the center of gravity of testee projection coordinate of 1 on hard plate is (X, Y); According to the equilibrium condition of hard plate 1, can draw 1 stressed sum of hard plate is 0, that is:

∑ F=0, i.e. F+f ₁+ f ₂+ f ₃+ f ₄=0 (1)

Wherein, F representes testee counteracting force to hard plate in motor process;

According to principle of moment balance, can draw the X-direction moment sum on the hard plate 1, the moment sum of Y direction is 0, that is:

∑ M _X=0, i.e. FX+f ₁X ₁+ f ₂X ₂+ f ₃X ₃+ f ₄X ₄=0 (2)

∑ M _Y=0, i.e. FY+f ₁Y ₁+ f ₂Y ₂+ f ₃Y ₃+ f ₄Y ₄=0 (3);

With (1) formula difference substitution (2) formula and (3) formula, the projection coordinate of center of gravity on hard plate that can draw testee is:

$X=\frac{f_1{X}_1+f_2{X}_2+f_3{X}_3+f_4{X}_4}{{\mathrm{<figure-callout\; id="1"\; label="f"\; filenames="HDA0000122724110000011.png,HDA0000122724110000021.png"\; state="\{\{state\}\}">f</figure-callout>}}_1+{\mathrm{<figure-callout\; id="2"\; label="f"\; filenames="HDA0000122724110000011.png,HDA0000122724110000012.png"\; state="\{\{state\}\}">f</figure-callout>}}_2+{\mathrm{<figure-callout\; id="3"\; label="f"\; filenames="HDA0000122724110000011.png"\; state="\{\{state\}\}">f</figure-callout>}}_3+{\mathrm{<figure-callout\; id="4"\; label="f"\; filenames="HDA0000122724110000011.png,HDA0000122724110000012.png"\; state="\{\{state\}\}">f</figure-callout>}}_4};$

$Y=\frac{f_1{\mathrm{<figure-callout\; id="1"\; label="Y"\; filenames="HDA0000122724110000011.png,HDA0000122724110000021.png"\; state="\{\{state\}\}">Y</figure-callout>}}_1+f_2{\mathrm{<figure-callout\; id="2"\; label="Y"\; filenames="HDA0000122724110000011.png,HDA0000122724110000012.png"\; state="\{\{state\}\}">Y</figure-callout>}}_2+f_3{\mathrm{<figure-callout\; id="3"\; label="Y"\; filenames="HDA0000122724110000011.png"\; state="\{\{state\}\}">Y</figure-callout>}}_3+f_4{Y}_4}{{\mathrm{<figure-callout\; id="1"\; label="f"\; filenames="HDA0000122724110000011.png,HDA0000122724110000021.png"\; state="\{\{state\}\}">f</figure-callout>}}_1+{\mathrm{<figure-callout\; id="2"\; label="f"\; filenames="HDA0000122724110000011.png,HDA0000122724110000012.png"\; state="\{\{state\}\}">f</figure-callout>}}_2+{\mathrm{<figure-callout\; id="3"\; label="f"\; filenames="HDA0000122724110000011.png"\; state="\{\{state\}\}">f</figure-callout>}}_3+{\mathrm{<figure-callout\; id="4"\; label="f"\; filenames="HDA0000122724110000011.png,HDA0000122724110000012.png"\; state="\{\{state\}\}">f</figure-callout>}}_4}.$

Because four pick offs 2 are symmetrically distributed in four drift angle places of hard plate 1, are the summit with each pressure transducer 2, the geometric figure that line surrounded is a rectangle, i.e. X ₂=-X ₁, X ₃=-X ₁, X ₄=X ₁Y ₂=Y ₁, Y ₃=-Y ₁, Y ₄=-Y ₁, can draw:

$X=\frac{f_1-f_2-f_3+f_4}{f_1+f_2+{\mathrm{<figure-callout\; id="3"\; label="f"\; filenames="HDA0000122724110000011.png"\; state="\{\{state\}\}">f</figure-callout>}}_3+f_4}{X}_1---\left(4\right)$

$Y=\frac{f_1+f_2-f_3-f_4}{f_1+f_2+f_3+f_4}{Y}_1---\left(5\right)$

Bring data into projection coordinate that formula (4), (5) can draw the testee center of gravity, also just found the center of gravity of testee.

Embodiment 2: as shown in Figure 5; The mechanical arm of this utility model can also adopt following structure; Mechanical arm comprises the rotary table 14 that is fixed on the horizontal plane; On rotary table 14, be provided with vertical first guide rail, 15, the first guide rails 15 and constitute revolute pair with rotary table 14, the axis of revolute pair is vertical with horizontal plane; On first guide rail 15, be provided with first slide block, 16, the first slide blocks 16 and first guide rail, 15 formations, first moving sets, first slide block 16 vertically moves at first guide rail 15; On first slide block 16, be provided with horizontal second guide rail 17, on second guide rail 17, be provided with second slide block, 18, the second slide blocks 18 and second guide rail, 17 formations, second moving sets, second slide block 18 is in second guide rail, 17 upper edge horizontal motion; Hard plate 1 vertically is arranged on the end of second slide block 18.

In the present embodiment; First guide rail 15 is provided with vertical first screw rod, 19, the first screw rods 19 and first slide block, 16 threaded engagement, and first screw rod, 19 ends are provided with the 3rd drive motors 20; The 3rd drive motors 20 drives first screw rod 19 and rotates, and vertically moves thereby drive first slide block 16; Same; Second guide rail 17 is provided with second screw rod, 21, the second screw rods 21 and second slide block, 18 threaded engagement of a level, and second screw rod, 21 ends are connected with 4 wheel driven galvanic electricity machine 22; 4 wheel driven galvanic electricity machine 22 drives second screw rod 21 and rotates, thereby drives the motion of second slide block, 18 along continuous straight runs.The 3rd drive motors 20 is connected host computer 7 through one-chip computer module 6 respectively with 4 wheel driven galvanic electricity machine 22, unifies control by host computer 7.

The above only is the preferred implementation of this utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of this utility model.

Claims (4)

1. space station human body physiological parameter checkout equipment; It is characterized in that: comprise mechanical arm; End at mechanical arm is provided with hard plate (1), and some pressure transducers (2) that can surround certain surface area are set on hard plate (1), also is provided with the fixing band (3) that is used for fixing the testee body on the hard plate (1); Pressure transducer (2) is provided with gripper shoe (4), forms the space that holds the testee trunk between fixing band (3) and the gripper shoe (4); Pressure transducer (2) connects one-chip computer module (6) through signal condition module (5), and one-chip computer module (6) connects host computer (7).

2. a kind of space station according to claim 1 human body physiological parameter checkout equipment; It is characterized in that: from the stiff end to the movable end, be followed successively by first revolute pair, second revolute pair and the 3rd revolute pair on the said mechanical arm, the 3rd revolute pair end is fixed with hard plate (1).

3. a kind of space station according to claim 1 human body physiological parameter checkout equipment; It is characterized in that: from the stiff end to the movable end, be followed successively by revolute pair, first moving sets and second moving sets on the said mechanical arm, the said second moving sets end is fixed with hard plate (1).

4. according to any described a kind of space station human body physiological parameter checkout equipment in the claim 1 to 3, it is characterized in that: the number of said pressure transducer (2) is four, and four pressure transducers (2) are gone up rectangular arranging at hard plate (1).

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