CN2348534Y

CN2348534Y - Electrocardiosignal monitoring instrument using two buttons

Info

Publication number: CN2348534Y
Application number: CN 98209457
Authority: CN
Inventors: 吴学谦
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-13
Filing date: 1998-04-13
Publication date: 1999-11-10
Anticipated expiration: 2008-04-13

Abstract

The utility model belongs to a human electrocardiosignal monitoring instrument, which is mainly composed of a microprocessor, a memory, an analogue-to-digital converter, a gate circuit, a buzzer, etc. which are connected according to electrical principles. Due to a special running monitoring program, the following four functions can be accomplished by two buttons. Electrocardiogram data in the memory (RAM) is cleared by pressing a heart sound button (K1) and a manual button (K2) simultaneously to connect a power switch (K3). A period of electrocardiogram signals is stored by pressing the manual button (K2). Sound of input heartbeat frequency is monitored by pressing the heart sound button (K1). Electrocardiogram signals are output from an output line (TXD) by the grounding of one of the control lines (P1.4) of an output port (J) and pressing the heart sound button (K1).

Description

Electrocardiosignal monitor with two buttons

The utility model relates to the instrument of a kind of sampling and store human body electrocardiosignal, mainly connect into by electric principle, move special-purpose monitoring program test button state and realize following function: remove the internal memory electrocardiogram (ECG) data, store one section electrocardiosignal, monitor the cardiac frequency sound of importing, the electrocardiosignal that output has been stored by electrocardiosignal input, A/D converter, microprocessor, address latch, memory, gate circuit, buzzer, power supply, button, mains switch, delivery outlet.

The electrocardiosignal monitor that health care is at present used is exactly above-mentioned electric theory structure and function.Finish and remove the internal memory electrocardiogram (ECG) data, store one section electrocardiosignal, monitor the cardiac frequency sound of importing, these 4 kinds of functions of electrocardiosignal that output has been stored, need corresponding 4 buttons respectively.Button is many more, and instrument cost is high more, and volume is also big more.

The purpose of this utility model is only with 2 buttons, under the situation that does not increase other device of instrument, finish said function, promptly finish and remove the internal memory electrocardiogram (ECG) data, store one section electrocardiosignal, monitor the cardiac frequency sound of importing, these 4 kinds of functions of electrocardiosignal that output has been stored.Reduce button quantity, reduced cost, reduced volume.

In order to achieve the above object, the solution that the utility model adopts is: CPU adopts the MCS-51 single-chip microcomputer, hear sounds button [K1] meets the P3.5 of CPU, manually button [K2] meets the P1.2 of CPU, the EGC analog signal connects the input end of analog signal of A/D converter [A/D], the chip select end [CS] of A/D is subjected to the control of the P1.1 of CPU, the data wire of A/D connects the P0 mouth of CPU, the data of address latch are squeezed into the ALE that holding wire meets CPU, the P0 mouth of the Input Address termination CPU of address latch, the data of memory under program [ROM] allow output [OE] to connect the external program memory gating signal line [PSEN] of CPU, the data wire of ROM connects the P0 mouth of CPU, the least-significant byte address wire ground connection location latch OPADD end of ROM, the high address line of ROM connects the P2 mouth of CPU, the chip select end of data memory [RAM] [CS] is subjected to the control of the P3.4 of CPU, the data wire of RAM connects the P0 mouth of CPU, the least-significant byte address wire ground connection location latch OPADD end of RAM, the high address line of RAM connects the P2 mouth of CPU, whether the P1.6 control buzzer of CPU pronounces, whether the P1.4 control of CPU enters output state, and the serial delivery outlet [TXD] of CPU is as output line.This instrument moves special-purpose monitoring program and discerns various button states, carries out operation accordingly.Press hear sounds button [K1] and manual button [K2] energized switch [K3] simultaneously,, when detecting this button state during program start, carry out the operation of removing electrocardiogram (ECG) data in the internal memory [RAM] as a kind of button state.Press manual button [K2] as a kind of button state, program deposits one section electrocardiosignal through A/D converter [A/D] conversion in internal memory [RAM] during this state.Pin hear sounds button [K1] as a kind of button state, when this button state, the peak value of the electrocardiosignal of procedure identification input, and, send cardiac frequency sound at peak value drive buzzer [S].The P1.4 that makes CPU presses hear sounds button [K1] as a kind of button state under the low level situation, when program detects this button state, the serial port line [TXD] of the electrocardiogram (ECG) data signal in the internal memory [RAM] by CPU is sent to delivery outlet [J].Thereby reach the order ground of finishing 4 kinds of functions with 2 buttons.

Because making in the above-mentioned solution needed 4 buttons just can finish the instrument of corresponding 4 kinds of functions originally, was improved to 2 buttons and finished, and did not increase other device of instrument again, had reduced button like this, had reduced cost, had dwindled volume.

Fig. 1 is a program flow diagram of the present utility model; Fig. 2 is an electrical schematic diagram of the present utility model.

As shown in Figure 2.The utility model can move the program of program circuit shown in Figure 1 mainly by electrocardio input, A/D converter [A/D], microprocessor [CPU], address latch, ROM, RAM, gate circuit [AND], buzzer [S], power supply [5V], hear sounds button [K1], the manual instrument that connects into by electric principle of button [K2], mains switch [K3], delivery outlet [J].The CPU model is 8031, the address latch model is that 74LS373, ROM model are 2764, the RAM model is 628128, the A/D model is ADC0804.Hear sounds button [K1] meets the P3.5 of CPU, manually button [K2] meets the P1.2 of CPU, the EGC analog signal connects the input end of analog signal of A/D, the chip select end [CS] of A/D is subjected to the control of the P1.1 of CPU, the data wire of A/D connects the P0 mouth of CPU, the data of address latch are squeezed into the ALE that holding wire meets CPU, the P0 mouth of the Input Address termination CPU of address latch, the data of memory under program [ROM] allow output [OE] to connect the external program memory gating signal line [PSEN] of CPU, the data wire of ROM connects the P0 mouth of CPU, the least-significant byte address wire ground connection location latch OPADD end of ROM, the high address line of ROM connects the P2 mouth of CPU, the chip select end of data memory [RAM] [CS] is subjected to the control of the P3.4 of CPU, the data wire of RAM connects the P0 mouth of CPU, the least-significant byte address wire ground connection location latch OPADD end of RAM, the high address line of RAM connects the P2 mouth of CPU, whether the P1.6 control buzzer of CPU pronounces, whether the P1.4 control of CPU enters output state, and the serial delivery outlet [TXD] of CPU is as output line.The EGC analog signal is delivered to data/address bus after converting digital signal to by A/D.Pin hear sounds button [K1] and manual button [K2] energized switch [K3] when simultaneously, carry out the operation of removing the electrocardiogram (ECG) data in the internal memory [RAM] when detecting this button state during program start; If not pinning this two buttons [K1 and K2] energized switches [K3] simultaneously, the former electrocardiogram (ECG) data in the reserved memory [RAM] then.When pressing manual button [K2], program is stored to one section electrocardiosignal in the internal memory [RAM].When pinning hear sounds button [K1], the peak value of the electrocardiosignal of procedure identification input, and between the peak period, drive buzzer [S] at the P1.6 of CPU mouth output high level, send cardiac frequency sound.Make a control line [P1.4] ground connection (can in output plug ground connection) of delivery outlet press hear sounds button [K1] again, when program detects this state the serial port line [TXD] of the electrocardiogram (ECG) data signal in the internal memory [RAM] by CPU outputed to delivery outlet [J].

Claims

1, a kind of mainly by the electrocardiosignal input, A/D converter, microprocessor, address latch, memory, gate circuit, buzzer, power supply, button, mains switch, delivery outlet connects into by electric principle, move special-purpose monitoring program test button state and realize removing the internal memory electrocardiogram (ECG) data, store one section electrocardiosignal, monitor the cardiac frequency sound of input, the electrocardiosignal monitor of the electrocardiosignal function that output has been stored, it is characterized in that: CPU adopts the MCS-51 single-chip microcomputer, hear sounds button [K1] meets the P3.5 of CPU, manually button [K2] meets the P1.2 of CPU, the EGC analog signal connects the input end of analog signal of A/D converter [A/D], the chip select end [CS] of A/D is subjected to the control of the P1.1 of CPU, the data wire of A/D connects the P0 mouth of CPU, the data of address latch are squeezed into the ALE that holding wire meets CPU, the P0 mouth of the Input Address termination CPU of address latch, the data of memory under program [ROM] allow output [OE] to connect the external program memory gating signal line [PSEN] of CPU, the data wire of ROM connects the P0 mouth of CPU, the least-significant byte address wire ground connection location latch OPADD end of ROM, the high address line of ROM connects the P2 mouth of CPU, the chip select end of data memory [RAM] [CS] is subjected to the control of the P3.4 of CPU, the data wire of RAM connects the P0 mouth of CPU, the least-significant byte address wire ground connection location latch OPADD end of RAM, the high address line of RAM connects the P2 mouth of CPU, whether the P1.6 control buzzer of CPU pronounces, whether the P1.4 control of CPU enters output state, and the serial delivery outlet [TXD] of CPU is as output line.

2, electrocardiosignal monitor according to claim 1 is characterized in that: pin hear sounds button [K1] and manual button [K2] energized switch [K3] simultaneously, realize removing the electrocardiogram (ECG) data in the internal memory.

3, electrocardiosignal monitor according to claim 1 and 2 is characterized in that: press manual button [K2], finish and store one section electrocardiosignal in internal memory.

4 electrocardiosignal monitors according to claim 1 and 2 is characterized in that: pin hear sounds button [K1], realize monitoring the cardiac frequency sound of input.

5, electrocardiosignal monitor according to claim 4 is characterized in that: the P1.4 that makes CPU is a low level, presses hear sounds button [K1] again, will export the electrocardiosignal of having stored on output line.