The objective of the invention is to propose a kind of automatic constitution and physical agility tester, full-automatic intelligent test in order to the standardization that the human body constitution physical ability met national standard, thereby change in the past in the body constitution physical stamina test situation based on the manual type test, not only can significantly reduce artificial factor, and can increase work efficiency greatly, solve the big problem of test work amount preferably.
The automatic constitution and physical agility tester of the present invention's design comprises pick off, signal processor, single-chip microcomputer, single-chip microcomputer extender memorizer and data storage, order keyboard and computer; The measured is by order keyboard input test number, pick off is accepted the test index signal of tested human body, single-chip microcomputer becomes this signal processing the numerical value of decimal representation, this value storage is in the data storage of single-chip microcomputer, computer sends signal corresponding to single-chip microcomputer by 485 communication modes, and gating microcontroller serial port and computer serial communication, the numerical value of corresponding test index just is read in the computer, finishes corresponding measurement and data and transmits automatically.
In the above-mentioned test set, pick off has four kinds, wherein first kind is force transducer, second signal amplifier and an A/D converter of comprising the electric bridge formed by four resistance strain gages, forming by three audions, when the power on acting on force transducer changes, its resistance of foil gauge distortion back changes, the output voltage of the electric bridge of force transducer is changed, produce the microvolt voltage signal, amplify by operational amplifier, become digital signal by A/D converter again, the P0 mouth by single-chip microcomputer reads in single-chip microcomputer.
Second kind is encoder sensor, comprise code-disc, luminous tube, photoelectricity adopter and photoisolator, it around the described code-disc disk of evenly slotting, described Light-Emitting Diode and photoelectricity adopter are fixed on the both sides that photoelectric code disk is slotted with support, and photoelectricity adopter and photoisolator join.
The third is a photoelectric sensor, comprise a light emitting diode, a phototriode, a current amplifier and a photoisolator, light emitting diode and phototriode link, and the signal of phototriode is the input photoisolator after current amplifier amplifies.
The 4th kind for the conducting pick off, and it comprises that two metal sheets and one are placed on the intermediary sponge plate of two metallic plates, and uniform circular hole is arranged on the sponge plate, and two metallic plates link to each other with photoisolator.
Automatic constitution and physical agility tester of the present invention can be realized automatic test, automatic data collection, automatic scoring to every index of human body constitution physical ability.The solution of science the problems of bringing based on manual testing, the test job amount is big, anthropic factor is too much etc. in the nationwide physical condition physical stamina test, realized the intelligence test of nationwide physical condition physical ability.Test is evaluated according to national standard, and test result can be used as country's monitoring nationwide physical condition, works out the important evidence of relevant policies rules, and this work has very important social meaning.This device reliable operation, stable performance, easy and simple to handle are fit to wide.
Below in conjunction with accompanying drawing, introduce content of the present invention in detail.
Among Fig. 1-Figure 10, the 1st, code-disc, the 2nd, support, the 3rd, luminous tube, the 4th, photoelectricity adopter, the 5th, support, the 6th, back shaft, the 7th, sheet metal, the 8th, sponge, the 9th, sheet metal, in the circuit diagram, U1 is a pick off, and U2 is a signal processor, U3 is a single-chip microcomputer, and U4 is a program storage, and U5 is a data storage, U6 is a computer, and U7 is the order keyboard, and U8 is an A/D converter, U9 is a photoisolator, and U10 is the conducting pick off.
As shown in Figure 1, automatic constitution and physical agility tester of the present invention comprises pick off U1, signal processor U2, single-chip microcomputer U3, program storage U4, data storage U5, order keyboard U7 and computer U6.The measured is by order keyboard U7 input test number, pick off U1 accepts the test index signal of tested human body, single-chip microcomputer U3 becomes this signal processing the numerical value of decimal representation, this value storage is in the data storage U5 of single-chip microcomputer, when computer U6 reads corresponding test data values, send signal by 485 communication modes corresponding to single-chip microcomputer, the serial ports of gating single-chip microcomputer and computer serial communication, the numerical value of so corresponding test index just is read in the computer, has finished corresponding measurement and data and has transmitted automatically.Fig. 1 is an automatic constitution and physical agility tester operation principle sketch.
In the above-mentioned automatic constitution and physical agility tester, its pick off can be force transducer, its circuit theory as shown in Figure 2, second signal amplifier and an A/D (U8) transducer that it comprises the electric bridge be made up of four resistance strain gages, is made up of three audions, when the power on acting on force transducer changes, principle according to resistance strain effect, its resistance of foil gauge distortion back also changes, cause the output voltage of the electric bridge of force transducer also to change, the size of its variable quantity is proportional with the external force that acts on the pick off thereupon.Force transducer produces the microvolt voltage signal during test, is amplified to 0-5V by operational amplifier, is become the digital signal of 0-FFH again by A/D converter, and the P0 mouth by single-chip microcomputer reads in single-chip microcomputer.
The sensor also can be encoder sensor, Fig. 4 is the circuit theory diagrams of encoder sensor, 1 is code-disc, the 2nd among the figure, support, the 3rd, luminous tube, the 4th, photoelectricity adopter, the 5th, support, the 6th, back shaft, these 6 elements have been formed encoder sensor jointly, wherein code-disc is for there being the disk of even fluting all around, and the structural representation sketch as shown in Figure 3.As shown in Figure 4, the operation principle of encoder sensor is code-disc 1 rotation, and luminous tube 3 is luminous, produces one group of electric pulse behind photoelectricity adopter 4 acknowledge(ment) signals.The tester presses the order keyboard during test, and single-chip microcomputer enters interrupt service routine, begins to calculate the number of electric pulse, and each pulse equivalency is 1 millimeter, and sum converts through formula and is testing length numerical value, and photoelectricity adopter 4 joins with photoisolator (U9).
The sensor can also be photoelectric sensor.Fig. 5 is the circuit theory diagrams of photoelectric sensor, and it comprises a Light-Emitting Diode HG, phototriode 3DU, is attached thereto circuit and a photoisolator U9 of connecing, and when the 3DU pipe had illumination, resistance was very little, and electric current is through R
2Resistance makes current amplifier BG
1Conducting, output low level; When 3DU managed unglazed the photograph, resistance was very big, and electric current can not be through R
2Resistance makes BG
1Conducting, the output high level.The tester presses the order keyboard during test, and single-chip microcomputer enters interrupt service routine, begins to calculate the blanking time that photoelectric sensor receives twice signal.
The sensor can also be the conducting pick off, Fig. 6 is the structure diagram of conducting pick off, it comprises the sponge 8 between metal sheet 7, metal sheet 9 and placement and two metallic plates, wherein be equipped with the circular hole (as shown in Figure 7) of uniform suitable size on this sea, two metal sheets insert in the circuit, when pressure acts on the conducting pick off, under the effect of pressure, two sheet metals are connected by the circular hole of sponge, make the circuit that is attached thereto produce the signal of telecommunication.Fig. 8 is the circuit theory diagrams of conducting pick off, and U10 is the conducting pick off, and U9 is a photoisolator, and the tester presses the order keyboard during test, and single-chip microcomputer enters interrupt service routine, begins to calculate the blanking time that conducting sensor electrical signal changes.
The automatic constitution and physical agility tester of the present invention design can indexs in order to 13 individual plastids of testing human, specific targets be body weight, height, trunk bending forwards, jump height, the time of standing on one leg of closing one's eyes, 4*10 rice come and go races, step test, arm grip, dorsal muscles power, when reacting, vital capacity, push-up, abdominal crunch.Wherein body weight, arm grip, dorsal muscles power are measured by force transducer, height, trunk bending forwards are measured by encoder sensor, jump height, the round race of 4*10 rice, step test, push-up, abdominal crunch are measured by photoelectric sensor, and the time of standing on one leg of closing one's eyes measures by the conducting pick off.
Key point of the present invention be body constitution physical ability intelligent test device because selected right sensors for use and developed reliable, quick, accurate data acquisition system, can carry out simultaneously the test and evaluation software system of data communication system between a plurality of single-chip microcomputers and the computer and powerful, easy to use, dependable performance and 12 can and computer between carry out the single machine test instrument of communication, thereby formed a brand-new large-scale intelligentized test set that comprises software and testing hardware.Solved the situation that test instrunment falls behind in the present nationwide physical condition generaI investigation.