Summary of the invention: the utility model makes these things to sit on have when the non-equilibrium sitting posture in the left and right sides exactly and prompting is arranged during long-time sitting posture, function such as reports.Specific embodiments: mainly be that the ischial tuberosity that certain distance is arranged with two symmetries about buttocks is supported on the thing to sit on when utilizing human body sitting posture, two corresponding stress point face portion are also just arranged on the thing to sit on landing surface.When human body was sat up straight, two suffered recoils of some face equated, when human body tilted, it is poor that two some faces just produce recoil.By one deck two silver forms or many silvers of one deck form that are arranged in the ischial tuberosity landing surface on the thing to sit on, about to arranging side by side, isometric before and after every silver and the tubercle landing surface, or it is two-layer, two-layer above every layer two silver form or every layer of many silvers form, with about whole layer to being the form that the stairstepping stack is arranged, or it is two-layer, the two-layer above orientation with every layer every layer two silver form or every layer of many silvers form is an angle stack mutually, the tubercle recoil sensing element that every silver can be longer than tubercle landing surface longitudinal separation form directly or indirectly converts the charge value of left and right sides tubercle recoil to, treated circuit provides signals such as sound at last, remind and rectify sitting posture, and utilize the lasting time of recoil signal to determine whether to provide sitting posture and cross alerting signal of a specified duration.The concrete mode that tubercle recoil sensing element is transformed into tubercle recoil electric weight has two kinds: one, direct conversion regime: be the size that variation relation between physical quantity and the electric weight directly induces suffered recoil amount when utilizing sensing element stressed.Form has: in the tubercle landing surface of, rigid structure thing to sit on soft at all, a. is placed with two forms than the sensing element of broad of one deck.B. be placed with the form of the narrow sensing element of one deck multi-disc.C. above a or b form are formed multilayer, two-layer, two-layer above two every layer than broad or a minority narrow sensing element form stepped about to the form (being suitable for soft junction structure sensing element described below) of stack.D. above a or b or c form are formed multilayer, the form that every layer sensing element oblique arrangement becomes parallelogram, every silver orientation isometric, every layer of being longer than tubercle landing surface longitudinal separation is an angle stack mutually, (what be equipped with the pressure sensor form for described strong silver below using among a, the b must be that the pressure sensing component two ends on upper strata move on a lower floor left side or the right sensing element two ends, the holding capacity correspondence of upper pressure sensor is passed to the pressure sensor of bottom, and being pressed in of the right and left filled up on the layer).Two than a form of the sensing element of broad, be will be in left and right tubercle recoil equivalent on two sensing elements respectively and become about two electric weight; The b form of the sensing element that multi-disc is narrow, two tubercles can about to random being pressed on the sensing element, utilize circuit to extract the sensing electric weight one by one, two concentrated amounts about sub-argument goes out; About stepped to the c form of stack, also be for reduce or overcome two of one decks than broad or less narrow sensing element form of one deck about to overcautious, not free, detect every layer recoil state respectively, one tunnel balanced signal is arranged, promptly do not report to the police.Adopt about the increased thing to sit on of d form to the angle taken, but will there be the non-pressure measurement of triangle district both sides.Two, indirect conversion mode: on strong four jiaos of dull and stereotyped seat faces, maybe can obtain the mechanical electronic mode of left and right sides side force value, the electronic type plane, on the platform-type weight measurement utensil and show one or more layers, about every layer of a plurality of strip shape tubercle recoil point face to the pressure sensing component of position, four jiaos of places respectively are lined with a pressure sensor under flat board seat face, with above three parts with under the flat board or measuring appliance under four pressure sensors or sensing spike place on the strong landing surface, on the framework, use on the supporting leg or on arbitrary plane of placing, as chair, stool, in a heatable brick bed face or Shitai County, can be integral with thing to sit on, also can use everywhere separately, one group in left side, one group on right side, in order to about obtaining to the force value of two sides that separate, (being equivalent to two strong silver sensing elements separately side by side).The position signalling of two tubercle recoil point faces of the dual-side force value that records or total force value and every layer is sent into calculating, comparison, decision circuitry, can be equivalent to the stressing conditions of lever, obtain whether parameter of balance of the recoil difference at two node places or other indirectly.Multilayer as described in the d in the direct conversion regime, also can liken here say so by about revolve respectively to the multilayer recoil point position sensing parts of overlapping arrangement and to turn to another direction arrangement, be the form of an angle stack mutually.The adoptable two kinds of forms of each silver recoil sensing element have soft junction configuration formula and strong silver to be equipped with the version of pressure sensor in the such scheme.The sensing element of soft junction configuration formula can be applicable to form of ownership and the condition in above two kinds of schemes, especially uses on the cushion class soft junction structure thing to sit on.This type of sensing element is made up of with conductive layer and protective layer elastic membrane, the sheet material bed of material of the electric insulation of material, elasticity and thickness uniformity.Concrete form has: elastic membrane, the sheet material bed of material conform to film, sheet shape resistance is pressed the voltage dependent resistor formula that becomes metal material layer; The pole-changing of film, sheet shape metal level or other conductive material layer is conformed to apart from condenser type in the two sides of elastic membrane, the sheet material bed of material; Perhaps conform to film, sheet shape conductive layer or plane, measuring body other type line of induction ring layer under elastic membrane, the sheet material bed of material, perhaps again in elastic membrane, conform to film, sheet shape conductive layer above the sheet material bed of material or electromagnetic field absorbs, the inner electromagnetic field that produces of sensor circuit of inductive material layer or respond to electric induction formula in the external environment condition electromagnetic field.Every layer material all will satisfy the requirement of withstand voltage anti-bending, and need everywhere between two-layer bonding, sew on, adsorb or vacuum packaging etc. is close to and is conformed to.Utilize elastomer part of the force thickness to change and cause that resistance, capacitance variations or tubercle absorb, the variation of sensing electromagnetism power, react the size and the variation of recoil.Condenser type and inductance type also multilayer alternately conform to formula, outer ground connection or earth-free, earthy with screened circuit, earth-free or up and down with electromagnetic field absorb, the even weighing apparatus induction external electromagnetic field that comes in order to the diseases caused by external factors formula of inductive material layer.The sensing element that strong silver is equipped with the pressure sensor structure form is applied on the thing to sit on of strong landing surface or framework, the narrow sensing element of many silvers each silver load is pressed on each pressure sensor of one of rear and front end, another homology module is pressed on strong landing surface or the framework, also can be that pull strap is connected on the thing to sit on front and back end on each pulling force sensor of one, recoil measure former and later two sensors and.Be applicable to that each the strong silver recoil point position sensing parts in the such scheme two can also be that an end axle is fixed, other end load presses simple contact switch open in usual or an end of pull strap is connected the thing to sit on front end, and the other end is connected on the pulling force sensor fixing on the thing to sit on rear end; Two silvers are that every silver is lined with pressure sensor for four jiaos than the strong silver sensing element form of broad, or every wide pull strap is connected on four fixing on thing to sit on front and back end pulling force sensors for four jiaos, perhaps is exactly two platform-type or flat weight or pressure measxurement utensils arranged side by side.The width of every recoil sensor needs according to each layer and soft or hard, the thickness decision of all protections, separation layer up and down in the size of human body ischial tuberosity, distance between two tubercles and the sensing element in the such scheme.The size of the effective recoil point face 2 of actual tubercle with about the size of two recoil point interplanar distances 3 with the different one-tenth inverse variation of soft or hard, thickness of whole seat face.Every width in two sensing element forms is with reference to the left and right sides length of maximum tubercle in all human bodies and the intertubercular distance value of maximum spacing, when the inboard that should be able to satisfy an effective recoil point face 2 is positioned at the two sensors line of demarcation, the outside of another effective recoil point face 2 is positioned in the sideline, the outside of this sheet sensor, the distance 3 about promptly every width adds more than or equal to the left and right sides length 4 of an effective recoil point face 2 between two effective recoil point faces; Every width in the multi-disc sensing element form should be with reference to the intertubercular distance value of minimum spacing in all human bodies, about every width is less than or equal between two effective recoil point faces 1/2nd of distance 3, be sensing element number more than or equal to the left and right sides width of tubercle landing surface divided by about between two effective recoil point faces distance 3 two/for the moment, about two effective recoil point faces 2 are positioned to the optional position, all will have at least a slice sensing element is not pressed, this charge value that is pressed presses the signal charge value in order to distinguish left and right sides two parts, can distinguish for analog circuit or modulus hybrid circuit, comparison process.For this multi-disc sensing element form, reduce under the situation of any in the comparison precision, every width can greater than about between two effective recoil point faces distance 3 1/2nd, as general election to four/3 o'clock, about two effective recoil point faces 2 are positioned at when the optional position, can be considered has a slice sensing element not pressed or does not press two kinds of situations that the even number vane with a slice is pressed jointly, can be for signal storage is arranged, calculate, the mode that the circuit of programmable function distinguishes with the charge value that is pressed or the even number charge value is respectively got half is extracted left and right sides two parts and is pressed the signal charge value; Requirement for the stairstepping stacking pattern is, when two effective recoil point faces 2 move out two sensing element forms of one deck about during to the normal position, just in time or enter into another layer about in the normal position, should be with reference to the intertubercular distance value of minimum spacing in all human bodies, the distance 3 about the distance that staggers between every layer should be less than or equal between two effective recoil point faces.More than the width of every sensor select also to need the allowance to swing about human body is taken into account.Two superimposed in the multilayer stack, shape such as X shape, minimum 90 degree of left and right sides angle, number of plies multi-angle more is more little, general have three layers get final product at most, can arbitrarily sit as square stool etc., but respectively with the two-layer recoil sensing element of the four direction arranged vertical of aspect.The effective recoil point of tubercle face is except little, negligible to the difference cumulative effect; or pressing not shallow pressure deep, the outer ring inner round portion exceptionally of position sensing switch, relevant with the used gasket material of tubercle size, body weight, sensing element and thing to sit on, protection wrapper.Front end at thing to sit on is provided with the soft, hard suitable of non-recoil sensing edge district, but the pad part 6 of raised points; Or thing to sit on is low early and high after; Or front-thin-rear-thick, in order to reduce the influence of tubercle front end limbs.Two sensing element forms, can be provided with about raised brim 10 restrictions to the position on limit, the thing to sit on left and right sides; Or design has the non-equilibrium circuit of informing of initial recoil; Or the left and right sides width that relies on small-sized thing to sit on itself limit about to the position.Basic prompting of the present utility model, report function and have two kinds: left and right non-equilibrium report with sitting posture after reporting for a long time.When non-equilibrium difference is accumulated to a threshold values or threshold values keep certain hour and report to the police, the time length that is accumulated to threshold values depends on the size of difference, and antagonism that no difference or difference reverse difference too small or at any time awards accumulation or release can wait until that all sitting posture crosses the arrival of warning of a specified duration.This accumulated value can disappear back storage memory a period of time in recoil, continues accumulation for the recoil of recovering in a period of time.Have or not and the interrupted time of recoil signal are being controlled sitting posture and are crossing timer of a specified duration, can continue to accumulate timing after the of short duration disappearance process.In addition, increase that left and right sides recoil or left and right sides side pressure add and, counting and display circuit, can realize weighing and count, function regularly.The utility model is compared with existing all types of things to sit on, can make them have health care in better study, work and the leisure, is beneficial to health.The technical scheme that is provided at thing to sit on adopt unidirectional silver side by side, detection mode, detect in form than classical matrix point face formula applanation, simple on the processing procedure, reliably, cost is low, application form is many.The electric weight that the recoil sensing goes out is handled, and it is reasonable to report scheme.Realization function that can be good satisfies instructions for use.
The specific embodiment: first specific embodiment of the present utility model as shown in Figure 3, two of one decks that are first kind of conversion regime are than the soft junction structure pole-changing of the broad cushion apart from the capacitive pressure sensing element.It is front wide and rear narrow trapezoidal that the cushion profile is; add a dielectric layer and pole plate layer (the pole plate layer can be the conductive layer that conforms to insulating barrier) on one side of every two-plate electric capacity; form five layers; and adopt every sensing element except that the intermediate layer; all be 4 layers every layer whole shared, the self-contained mode of finishing to arrange of one, add the total seven-layer structure of upper and lower outer protection layer.Central core is a pressure electric weight induction pole plate 1, it is two-layer up and down to be dielectric layer 8, at least one deck is an elastic layer, two dielectric layers are outward the earthy pole plates 9 of another connection circuit, two-layer thus jointly as a pole plate, be close to and conform to for interior with it three layers with the mode of packing of finding time, the inside and outside electromagnetic interference of shielding, outermost is the layer of body construction up and down 7 of cushion, the sensing element two ends are that layer 13 is filled up in the space, about the end be provided with recoil point spacing preiection 10, front end is a pad part 6, the rear end is circuit and circuit and sensing element connection place 5.Circuit is with simply simulating differential amplifier circuit, draw integration behind the comparison signal, the mode that is triggered by integrated signal, the timing of recoil signal.Second specific embodiment also is the soft cushion form as shown in Figure 4.Compare with first embodiment, except be middle sensing element, circuit part difference and the infinite place protruding 10 that adopt multi-disc narrow and outward appearance different, all identical on form, the number of plies and the structure of sensing element, packing.Recoil induction pole plate 1 is a slice in the multi-disc, and circuit part 11 is connected in outside the pad.In each scanning process, distribute same a plurality of ac electric for every sensing element, the electric weight filtering that sensing is returned, amplify and two recoil amounts, do the switching signal of differentiation, distribution with the electric weight of middle no signal, be used for comparison circuit behind the two recoil amount integrations that amplify, below 1/10th of recoil amount after the integration amount of each sensing element picks and places greatly can fully accumulate, extract every induction amount on the pressurized sensing element, improve relatively precision.This embodiment can manufacture the thinnest, the thing to sit on of side-to-side dimensions maximum.The 3rd embodiment can be referring to Fig. 3, Fig. 4.Be that recoil point face rings the weak form of inner sensing element induction external environment condition electromagnetic field intensity.But the form of two of one decks or many silvers, conductive layer 9 except two dielectric layers not the connection circuit earth potential, need outside the comparing electrical value that the input stage of handling wide magnitude induced voltage provides slicing not, all external and internal compositionses, form, treatment circuit etc. all can be equal to embodiment 1 or embodiment 2.The 4th embodiment as shown in Figure 2, be that the five layers of one in two inside conform to the whole recoil sensing element about 18 that is packaged into and are superimposed as one to stairstepping among first embodiment, upper and lower two-layer about about the distance of removing is less than or equal to the distance between effective recoil point face of two tubercles 12.The gap of both sides is filled with the material 13 with the sensing element same rigidity.Upper and lower is protection outer 7.Successively extract recoil electric weight fiducial value, an equilibrium valve is arranged, then accumulated deficiency electric weight not.The 5th embodiment is second kind of conversion regime as shown in Figure 5.Be equipped with a flat electronic scale 15 on the strong seat face 17, be arranged with on the scale face about a plurality of strong strip shape pressure nodule points to position sensing parts 1, the sensing silver at left and right two ends parallel and be positioned at former and later two pressure sensing pin at left and right two ends at the bottom of the scale or sensor 16 lines directly over.In face of every sensing silver one end is fixed on and sits about end to same axostylus axostyle on, every other end is carried on a shoulder pole respectively to be pressed in and is sat surface rear end contact separately and often open on the pressure switch, above matcoveredn 7, circuit part 11 places beyond the seat face.The sensing silver at two ends, the left and right sides is considered as fulcrum mutually, with the sensing silver on the fulcrum serves as zero to the other side's scale sensing silver that sorts, the sensing silver of two tubercles institute pressing all has two fractional values in total number of division on each direction, compare two fractional values by circuit calculating, every end pressure that electronic scale is measured equal the recoil at two tubercle places and pressing vane fractional value separately product and, promptly every end pressure equal two recoils again this end component and.Equate as two recoils during comparison signal, the left and right end pressure ratio that just has circuit to calculate equal two fractional values of left-hand and with two fractional values of dextrad and ratio, two ratios such as unequal promptly are non-equilibrium states.During a plurality of vane of each tubercle pressing, get intermediate value.The preferred embodiment of tool representative is the 2nd embodiment.All examples can be used vibration, induction or pressure activated switch circuit, can adopt the intermittently used mode.
