CN2682499Y

CN2682499Y - Sit-up tester

Info

Publication number: CN2682499Y
Application number: CN 200420030498
Authority: CN
Inventors: 隋君
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-23
Filing date: 2004-02-23
Publication date: 2005-03-02
Anticipated expiration: 2014-02-23

Abstract

The utility model discloses a sit-up tester, which is provided with a human body induction sensor (1). A signal processing circuit (1) is connected with the human body induction sensor (1). The output end of the signal processing circuit (2) is connected with an SCM which is also connected with a display and a real-time clock chip. The completed sit-up number can be tested automatically, and the time and the datum can be displayed quickly and accurately. The rugged human body sensor can respectively test the shoulder signals and the head signals of the human body, and a number is counted once when the action of the tested people is canonical. The sit-up tester is combined with a radio frequency IC card, and the datum of the tested people in the natural state can be abstracted automatically to provide convenience for the tested result. The power consumption of the circuit part is low, the safety is good, and the reliability is high.

Description

The sit-ups tester

Technical field:

The utility model relates to a kind of physique test instrument, especially a kind of sit-ups tester.

Background technology:

At present, relevant department has stipulated that school (primary school, middle school, university) must comprise the physical examinations of eight projects of " sit-ups " to the student.The quality of physique constitution of students all has certain influence to enter a higher school, job hunting etc., and for this reason, detection means that must the employing science is carried out physical examinations to the student, to draw correct test result.In the past to the test of " sit-ups " fully by manually finishing, the tester holds manual time-keeping, and needs the number of times that be finished in the record stipulated time.Exist shortcomings such as the manual time-keeping error is big, tester's working strength height.The action finished of testee simultaneously may not standard, and the data of being added up can not reflect student's physical condition exactly.

Summary of the invention:

The utility model is in order to solve shortcomings such as existing in prior technology tester working strength height, error be big, but a kind of convenient test, sit-ups tester accurately are provided.

Technical solution of the present utility model is: a kind of sit-ups tester, be provided with human body sensor 1, be connected to signal processing circuit 2 with human body sensor 1, the output and the single-chip microcomputer of signal processing circuit join, and also are connected to display, real-time timepiece chip with single-chip microcomputer.

Also be provided with human body sensor 3, be connected to signal processing circuit 4 with human body sensing sensing circuit 3, the output and the single-chip microcomputer of signal processing circuit 4 join.

Described human body sensor 1,2 places respectively in the highly different support bar 5,6.

Also be connected to hummer and pilot lamp with single-chip microcomputer.

Described human body sensor 1 or 2 is people's body heat and releases dependent sensor.

Single-chip microcomputer also is connected to the IC-card signal processing module.

The present invention compares with prior art, can detect the sit-ups number of times of being finished in the stipulated time automatically, and can fast show the time and the data of detection accurately.Set rugged human body sensor can be distinguished the shoulder and the head signal of testing human, guarantees just to count once during at action norm the testee.Combine with radio-frequency (RF) IC card and can extract tester's natural situation data automatically, for record test result etc. provides convenience.Circuit part is low in energy consumption, security good, reliability is high.

Description of drawings:

Fig. 1 is the scheme of installation of the utility model embodiment human body sensor.

Fig. 2 is the schematic block circuit diagram of the utility model embodiment.

Embodiment:

Below in conjunction with description of drawings embodiment of the present utility model.As shown in Figure 1, 2: this practicality new with novel embodiment for being provided with human body sensor 1, be connected to signal processing circuit 2 with human body sensor 1, the output and the single-chip microcomputer of signal processing circuit join, and also are connected to display, real-time timepiece chip with single-chip microcomputer.In order when testee's action norm,, to be provided with human body sensor 3 in addition just counting is once, be connected to signal processing circuit 4 with human body sensing sensing circuit 3, the output and the single-chip microcomputer of signal processing circuit 4 join.Human body sensor 1,2 places respectively in the highly different support bar 5,6, and with respectively head and the shoulder signal of testing human, human body sensor 1 or 2 can be a human infrared sensor, also is being that people's body heat is released dependent sensor.Also be connected to hummer, pilot lamp and IC-card signal processing module with single-chip microcomputer.

Single-chip microcomputer can adopt the AT89s52 single-chip microcomputer, and signal processing circuit is made of operational amplifier LM328, voltage comparator LM393, monostable circuit 74LS122 and potentiometer, resistance, electric capacity.

Principle of work: after the host-initiated work, internal timer picks up counting, and in (for example one minute), whether two human body sensors of cyclic query have the signal input at the appointed time.

When the testee " worked and sit " standard, the head of human body and shoulder were respectively through human body sensor 1,3, and the signal of being responded to amplifies (generally being stabilized in about 2.3v) through operational amplifier LM358, sends into voltage comparator LM393 and compares.At this moment, 1 pin and 7 pin of voltage comparator LM393 will produce the negative level saltus step, and the signal of being exported is expanded through obtaining behind the monostable 74LS122, promptly these two signals extension of validity, and then this signal conveys to single-chip microcomputer.

Single-chip microcomputer assert to have finished once to have lain on the back and does that internal counter adds one under the situation that obtains two signal inputs, and in one minute, counter adds an operation according to situation about finishing.After timing in a minute was finished, pilot lamp was bright, hummer sounds, and the data on the significant screen are the data that record.After test was finished, single-chip microcomputer was noted data, and can achievement be existed on the card by wireless radio-frequency card.

Claims

1. sit-ups tester, it is characterized in that: be provided with human body sensor (1), be connected to signal processing circuit (2) with human body sensor (1), the output and the single-chip microcomputer of signal processing circuit (2) join, and also are connected to display, real-time timepiece chip with single-chip microcomputer.

2. sit-ups tester according to claim 1 is characterized in that: also be provided with human body sensor (3), be connected to signal processing circuit (4) with human body sensing sensing circuit (3), the output and the single-chip microcomputer of signal processing circuit (4) join.

3. sit-ups tester according to claim 2 is characterized in that: described human body sensor (1), (2) place respectively in highly different support bar (5), (6).

4. according to claim 1 or 2 or 3 described sit-ups testers, it is characterized in that: also be connected to hummer and pilot lamp with single-chip microcomputer.

5. sit-ups tester according to claim 4 is characterized in that: described human body sensor (1) or (2) are people's body heat and release dependent sensor.

6. according to claim 1 or 2 or 3 described sit-ups testers, it is characterized in that: also be connected to the IC-card signal processing module with single-chip microcomputer.