CN2539983Y

CN2539983Y - Wrist watch with heartbeat pulse measuring function

Info

Publication number: CN2539983Y
Application number: CN02206314U
Authority: CN
Inventors: 陈乐天
Original assignee: Yuanjia Science & Technology Co Ltd
Current assignee: Yuanjia Science & Technology Co Ltd
Priority date: 2002-02-22
Filing date: 2002-02-22
Publication date: 2003-03-12
Anticipated expiration: 2012-02-22

Abstract

The utility model provides a watch with heartbeat and pulse measurement function, a sensor lens is arranged on the watch body, a circuit control unit which measures heartbeat and pulse is arranged on the movements inside the watch body, the circuit control unit via the infrared emission measures changes in human blood concentrations to measure the beating frequency of heartbeat and pulse, and matches with an optical control circuit to measure whether the user touches the sensor lens with a finger, to activate the internal counting function of the circuit control unit, and thus the accurate beating frequency of heartbeat and pulse measured is provided and the misoperation caused by the outside noise is avoided.

Description

Wrist-watch with pulse beat measurement function

Technical field

The utility model relates to a kind of wrist-watch, is meant a kind of wrist-watch of energy measurement pulse beat especially.

Background technology

Figure 1 shows that known wrist-watch with pulse beat measurement function, this table body 1a inside is provided with a circuit control unit 11a that can measure the pulse beat number of times, it is when doing the pulse beat measurement, measure the pulse beat function by the button 12a that pushes table body 1a to open earlier, and contact the sensor eyeglass 13a that shows on the body 1a with finger by the user, the infrared ray sensing signal that the interior infrared ray sensor (figure slightly) of circuit control unit 12a this moment is launched is to human finger, receive the infrared ray sensing signal that is reflected by finger by infrared ray sensor again, because blood of human body concentration change and heartbeat are synchronous, by the variation that the infrared ray sensing signal is measured haemoconcentration, just can calculate the number of times of pulse beat.

Above-mentioned known wrist-watch with pulse beat measurement function, mainly be to utilize infrared technology to measure the pulse beat number of times, but the button 12a that pushes table body 1a as the user is with after opening measurement pulse beat function, do not contact before the sensor eyeglass 13a that shows on the body 1a at human finger, infrared ray sensor in the circuit control unit 11a has begun to have done the work of emission and reception, the infrared ray sensing signal of being launched is not launched in remote owing to there being any object to do obstruct, and aspect reception, be full of noise owing to external environment, example: the infrared ray that sunshine is carried secretly promptly might be taken advantage of this and be input into infrared ray sensor and be received, and cause the erroneous judgement of infrared ray sensor and begin the counting, by the time human finger is behind the sensor eyeglass 13a on the contact table body 1a, the last measured non-real numerical value of pulse beat number of times.

As from the foregoing, the above-mentioned known wrist-watch with pulse beat measurement function obviously has inconvenience and exists with defective on reality is used, and the number of times of can't the correct measurement pulse beat beating remains to be improved.

Summary of the invention

Subject matter to be solved in the utility model can effectively be avoided the interference of outside noise for a kind of wrist-watch with pulse beat measurement function is provided, and accurately measures the number of human body pulse beat.

In order to solve the problems of the technologies described above, a kind of wrist-watch that the utility model provides with pulse beat measurement function, in a table body, be provided with a movement, this movement is provided with a circuit control unit, and be provided with a sensor eyeglass in this table body, wherein this circuit control unit comprises a light control circuit, a power on-off control circuit, an infrared ray sensor circuit, a change-over circuit and a micro-control circuit, wherein this light control circuit is located at this sensor eyeglass below, power in order to measurement light source changes, and exports a Continuity signal when this light source is covered; This power on-off control circuit is coupled to this light control circuit, in order to receive this Continuity signal, to export an operating voltage; This infrared ray sensor circuit is located at this sensor eyeglass below, and is coupled to this power switch circuit, after receiving this operating voltage, launches and receives an infrared ray sensing signal; This change-over circuit is coupled to this infrared ray sensor circuit, and this infrared ray sensing signal in order to this infrared ray sensor circuit is received changes into a digital signal; This micro-control circuit is coupled to this change-over circuit, in order to receive this digital signal and this digital signal is done counting.

Just be elaborated with accompanying drawing below in conjunction with concrete enforcement of the present utility model.

Description of drawings

Fig. 1 is the synoptic diagram of known pulse beat wrist-watch;

Fig. 2 is a flat assembly drawing of the present utility model;

Fig. 3 is a three-dimensional exploded view of the present utility model;

Fig. 4 is the block scheme of the utility model circuit control unit;

Fig. 5 is the circuit diagram of the utility model circuit control unit.

Embodiment

Fig. 2 and Figure 3 shows that flat assembly drawing of the present utility model and three-dimensional exploded view.The utility model is a kind of wrist-watch with pulse beat measurement function, be provided with a watchcase 11 in this table body 1, the surface of this watchcase 11 is provided with a surperficial acrylic plate 12, the both sides of watchcase 11 borrow a spring rod 13 and a watchband head 14 and a watchband tail 15 to fuse respectively, a side adjacent with this spring rod 13 is provided with most buttons 16, the bottom of watchcase 11 is provided with a room 17, for a sensor eyeglass 18, one movement 19, one piezo 20, one waterproof apron 21 and a bonnet 22 are placed, and borrow a plurality of screws 23 that this bonnet 22 is integral with watchcase 11 interlockings, be provided with a circuit control unit 3 in this movement 19;

Fig. 4 and Figure 5 shows that the block scheme and the circuit diagram of the utility model circuit control unit, this circuit control unit 3 comprises a light control circuit 31, a power on-off control circuit 32, an infrared ray sensor circuit 33, a change-over circuit 34, a micro-control circuit 35, a LCD 36 and a backlight control circuit 37, wherein:

This light control circuit 31 is a photoresistance, be located at sensor eyeglass 18 belows among Fig. 2, being used for the power of measurement light source changes, do not covered and direct irradiation during in photoresistance at light source, its resistance can descend, and makes that institute's pressure drop that produces was very low when electric current was flowed through photoresistance, and hidden in the past at light source, can make photoresistance can't receive light source, its resistance can rise, and makes when electric current is flowed through photoresistance that institute's pressure drop that produces is higher and export a Continuity signal.

This power on-off control circuit 32 is coupled to light control circuit 31, formed by transistor Q4, Q5 and resistance R 2 ~ R5, be used for receiving the Continuity signal that light control circuit 31 is exported, and after receiving Continuity signal output one operating voltage, when light control circuit 31 is not exported Continuity signal, very low and the not enough so that transistor Q4 conducting (ON) of the pressure drop of photoresistance own, and the related transistor Q5 that makes can't conducting, resistance R 5 does not have electric current to flow through, and operating voltage output can't be provided; Otherwise light control circuit 31 is in output during Continuity signal, and the pressure drop of photoresistance own is very high and be enough to just transistor Q4 conducting, and relatedly makes transistor Q5 conducting, and resistance R 5 has electric current to flow through, and operating voltage output is provided.

This infrared ray sensor circuit 33 is located at sensor eyeglass 18 belows among Fig. 2, and be coupled to power on-off control circuit 32, after receiving the operating voltage that power on-off control circuit 32 exported, be used for emission and receive an infrared ray sensing signal, by transistor Q6, infrared transceiver IRPT, resistance R 6 ~ R10 and capacitor C 2 are formed, when infrared ray sensor circuit 33 is not received the operating voltage that power on-off control circuit 32 exported, transistor Q6 is in by (OFF) state, make infrared transceiver IRPT not have forward voltage and can't work, and when infrared ray sensor circuit 33 is received the operating voltage that power on-off control circuit 32 exported, transistor Q6 is in conducting state, and makes infrared transceiver IRPT forward voltage be arranged and be able to operate as normal.

This change-over circuit 34 is coupled to this infrared ray sensor circuit 33, be used for the infrared ray sensing signal that infrared ray sensor circuit 33 is received, change into a digital signal, it is made up of IC chip U3, resistance R 11 ~ R18 and capacitor C 3 ~ C9, and this IC chip U3 inside comprises a signal amplification circuit 341, a low pass amplifying circuit 342 and a waveform shaping circuit 343, and this signal amplification circuit 341 is used for amplifying this faint infrared ray sensing signal; This low pass amplifying circuit 342 is coupled to signal amplification circuit 341, passes through in order to the low frequency signal that signal amplification circuit 341 is exported; This waveform shaping circuit 343 is coupled to this low pass amplifying circuit 342, is used for the signal shaping that low pass amplifying circuit 342 is exported is become a digital signal.

This micro-control circuit 35 is coupled to change-over circuit 34, is used for receiving the digital signal that change-over circuit 34 is exported, and digital signal is done the correlation function of counting and carrying out wrist-watch, and it is become by little process chip U1, quartz crystal XT and other component groups.

This LCD 36 is coupled to micro-control circuit 35, is used to provide a digital picture Presentation Function, and counting process can be shown by LCD 36 immediately.

This backlight control circuit 37 is coupled to micro-control circuit 35, is used to provide the demonstration of a cold light panel, and it is made up of IC chip U2, transistor Q2, Q3 and other assembly.

But by last this, the utility model is mainly controlled power on-off control circuit 32 by light control circuit 31, and whether output services voltage is to infrared ray sensor circuit 33, that is when this sensor eyeglass 18 of finger touch of user, infrared ray sensor circuit 33 just can be started working, via the infrared ray sensing signal of launching, pass the human body of sensor eyeglass 18 to this sensor eyeglass 18 of contact, haemoconcentration with sensing human body inside changes, and receive infrared ray sensing signal by this human body reflected, make infrared ray sensor circuit 33 not be subjected to the interference of external environment shadow, and can accurately measure the number of times that pulse beat is beated, so can effectively improve the defective that known pulse beat can't correctly be counted in table.

Therefore, the utlity model has the wrist-watch of pulse beat measurement function, have characteristics described as follows:

(1) can avoid outside outside noise to disturb, and can accurately measure the number of pulse beat.

(2) have only as user during with this sensor eyeglass of finger touch, the infrared ray sensor circuit just can begin action, and the consumption that can save power supply.

The above only is the detailed description and the accompanying drawing of the utility model preferred embodiment; be not in order to restriction the utility model, equivalent variations or modification that any people who is familiar with this technology makes according to the utility model all should be included within the utility model protection domain.

Claims

1, a kind of wrist-watch with pulse beat measurement function is provided with a movement in a table body, this movement is provided with a circuit control unit, and this table body is provided with a sensor eyeglass, it is characterized in that described circuit control unit comprises:

The strong and weak light control circuit that changes of one measurement light source is located at this sensor eyeglass below;

One power on-off control circuit is coupled to this light control circuit;

The infrared ray sensor circuit of one emission and receiving infrared-ray sensing signal is located at this sensor eyeglass below, is coupled to this power switch circuit;

One converts the infrared ray sensing signal to a digital signal conversion circuit, is coupled to this infrared ray sensor circuit; And

The micro-control circuit of one tool tally function is coupled to this change-over circuit.

2, the wrist-watch with pulse beat measurement function as claimed in claim 1 is characterized in that described light control circuit is a photoresistance.

3, the wrist-watch with pulse beat measurement function as claimed in claim 1 is characterized in that the infrared ray sensing signal that described infrared ray sensor circuit is launched, and is the human body that is emitted to the described sensor eyeglass of contact through described sensor eyeglass.

4, the wrist-watch with pulse beat measurement function as claimed in claim 3 is characterized in that the infrared ray sensing signal that described infrared ray sensor circuit is received, and is to be reflected through described sensor eyeglass by described human body.

5, the wrist-watch with pulse beat measurement function as claimed in claim 1 is characterized in that described change-over circuit comprises:

One signal amplification circuit;

One low pass amplifying circuit is coupled to this signal and puts people's circuit; And

One is shaped as the waveform shaping circuit of digital signal with low frequency signal, is coupled to this low pass amplifying circuit.

6, the wrist-watch with pulse beat measurement function as claimed in claim 1 is characterized in that described micro-control circuit also couples a LCD.

7, the wrist-watch with pulse beat measurement function as claimed in claim 1 is characterized in that described micro-control circuit also couples a backlight control circuit.