CN2194528Y

CN2194528Y - Sickroom calling device with memory function

Info

Publication number: CN2194528Y
Application number: CN 94213976
Authority: CN
Inventors: 赵曙光; 李增烈
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-03
Filing date: 1994-06-03
Publication date: 1995-04-12
Anticipated expiration: 2004-06-03

Abstract

The utility model relates to a memory type calling device which applies a microcomputer to sickroom monitoring. The memory type calling device comprises a single chip microcomputer, a display, a keyboard, a printer, an alarm, etc. The functions of inquiry, record, display, printing, alarm, etc. for calling are completed under program control, and the memory type calling device can especially record the response time of the working of nurses accurately. The utility model can be used as the objective examination of nursing service, and can also be used as an original record for processing medical nursing responsibility. The device is controlled by the microcomputer, and the circuit design adopts middle-scale and large-scale integrated circuits. The memory type calling device has good reliability, and can greatly contribute to the monitoring work of various hospitals.

Description

Sickroom calling device with memory function

The utility model relates to the ward calling device, the micro-processor controlled ward of particularly a kind of usefulness calling device.

Existing ward calling device, generally all adopt transistor or in, small scale integration handles call information.These devices generally all do not have the function of record, stored calls information, thereby the processing and the nursery work evaluation of many medical care responsibilities lacked objective true foundation.

The purpose of this utility model be to overcome the above-mentioned shortcoming of existing ward calling device and provide a kind of can complete documentation and preserve the device of patient's call information, afterwards can be for checking at any time so that the assay of nursing information objective and fair more.

Solution of the present utility model is to use microcomputer to realize the memory call function: this device comprises call button; Cable; The host computer system that is used for controlling call information, this system comprises microprocessor, keyboard, printer, display, alarm and power supply; It is characterized in that said microprocessor comprises single-chip microcomputer U1, program storage U3, data memory U4, printer interface U5 and real-time time-of-day clock UT; Connect the extension set AM a plurality of in parallel of call button and host computer system, be used for the loopback call information, it comprises impact damper U09, counter U10, eight channel data selector U11, comparator circuit U12.

The pin 6(SUC of single-chip microcomputer U1 in this solution) can pass through transistor T 1, relay R ELAY links to each other with alarm AL.

Display D in this solution is by three shift register UA, UB, pin 10,11(RXD, the TXD of UC and single-chip microcomputer U1) link to each other.

Keyboard KB in this solution is made up of button K+, K-, KP, KT, and the P1.1～P1.4 with single-chip microcomputer U1 links to each other respectively, when being used for printing and school.

Power supply P in this solution and the positive pole of back-up source E link to each other with the positive pole of diode D1, D2 respectively, link to each other with the Vcc end of data memory U4 and time-of-day clock UT after the negative pole of diode D1, D2 links to each other, and are used for power down protection.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is a The general frame of the present utility model.

Fig. 2 is a kind of concrete wiring diagram of microprocessor.

Fig. 3 is a kind of concrete wiring diagram of extension set.

Fig. 4 is a kind of concrete wiring diagram of alarm.

Fig. 5 is the concrete wiring diagram of display and keyboard.

Fig. 6 is a kind of concrete wiring diagram of power supply power-fail protection.

Referring to Fig. 1, host computer system comprises microprocessor MC, keyboard KB, and printer PR, display D and alarm AL, main frame are used to finish storage, the retrieval of call information, show, report to the police and print.Be connected to a plurality of extension set AM in parallel between call button AN and host computer system, an extension set is settled in a general ward.This extension set comprises impact damper U09, counter U10, eight channel data selector U11, comparator circuit U12.Divide machine host to be used to respond the request signal that main frame sends, patient's call information is in time delivered to main frame.Each extension set is by the unified power supply of main frame, and the cable between main frame and each extension set is the quad line, and wherein two is power lead (+15 volts, ground), and two is signal wire, and wherein one is transmitted the inquiry train of impulses, and one is transmitted the transponder pulse string.The result can pass through printer PR, and display D and alarm AL show, and keyboard KB is used for the work of main control system system.Main frame can be handled the call information of 128 berths at most, handles the nearly call information of 32 sick beds simultaneously.Any one day call record in the printer printable ten days, comprise each time calling bed label, call out constantly, response (medical personnel arrive the moment that sick bed begins to handle) etc. constantly, and can count total number of calls and average response time etc. on the same day.

Referring to Fig. 2, microprocessor MC comprises single-chip microcomputer U1, program storage U3, data-carrier store U4, printer interface and real-time time-of-day clock UT.Single-chip microcomputer U1 model is 8031, and program storage U3 model is 2764, and data memory U4 is 6264.Its capacity is 8K * 8, can store 1000 times call data, by calling out every day 100 times, can store the call information more than ten days approximately.In real time time-of-day clock UT is 146818, is a high-performance time-of-day clock chip, and it can be directly and single-chip microcomputer 8031 interfaces, and the precise time benchmark is provided.Parallel printer interface is by 8D latch U5(74LS273) and two signal wire STB, BUSY form.The temporary data of transporting to printer of latch, and the write-enable signal of this latch is also squeezed into signal (STB) as data, the notice printer receives data.The BUSY(of printer is busy) signal, then be sent to the P1.0 of single-chip microcomputer U1, for the inquiry printer modes.The inquiry coded pulse string of this machine is sent by the I/O line P1.7 of single-chip microcomputer 8031, sends into each extension set AM through level conversion with after driving, and P1.6 then is responsible for receiving the timesharing answer signal of each extension set.Program storage 2764 is EPROM, the control program of finishing solidified in 2764, thus the normal operation of the various functions of controlling call device.But time-of-day clock UT accurate recording comprises year, month, day, hour, min, second equal time information.

Referring to Fig. 3, extension set AM comprises impact damper U09, counter U10, eight channel data selector U11, comparator circuit U12.The impact damper model is 4050; Counter is that 4024, eight channel data selectors are 4512, and comparator circuit is 4070, and button is AN1, AN2 ... AN8.The coded pulse string that main frame sends repeated once in per 0.25 second.As synchronous head, its heel has 127 burst pulses (1MS) to each train of impulses by a broad pulse (18MS).The coded pulse string is delivered to counter 4024 and synchronous detection circuit through impact damper 4050, differentiates synchronizing pulse by pulse width.Synchronizing pulse is as the reset signal of counter 4024, and train of impulses is then as count pulse, and both acting in conjunction control counters are counted, and the count results of counter is exactly the bed label of current inquiry.The work of comparator circuit 4070 is such, it utilizes four DIP switch that the disease room number is set, and high four (Q4, Q5, Q6, the Q7) of counter 4024 output is sent with the sick room number that sets compares, if when meeting, then produce coincidence impulse, expression is inquired about this ward.With the enable signal of coincidence impulse as eight channel data selectors 4512, (Q3) common control is sent I/O line P1.6 to single-chip microcomputer 8031 with driving host with the state of eight buttons of this extension set AM serial successively for Q1, Q2 with counter 4024 low three.If a certain sick bed sends calling just, then, make acknowledge lines become " O " because button is pressed, not having calling then is " 1 ".Per moment has only an extension set to use acknowledge lines, thereby realizes time-sharing multiplex.

Referring to Fig. 4, single-chip microcomputer 8031(U1) output signal of P1.5 pin SUC adds to triode T1(9018) base stage, be output as " 0 " when P1.5 is flat, not adhesive of relay.Be output as " 1 " when reporting to the police, make relay R ELAY closure, make the power connection of alarm AL, Music Clip sends melodious call alerts.

Referring to Fig. 5, display driver circuit is made up of shift register (74LS164) UA, UB, the UC of three series connection.Each shift register is by single-chip microcomputer 8031 pin 11(TXD) under the control of the shift clock of drawing, will convert parallel data to by the serial word graphic data that 8031 pins 10 are sent, drive three positive charactron R, M, L altogether, carry out the demonstration of numeral and character.

Host keyboard KB is linked to each other with P1.1～P1.4 of single-chip microcomputer U1 by four little button K+, K-, KP, KT and forms, when being used for printing and school.Each is connected to Vcc by a pull-up resistor P1.1～P1.4.Therefore, when each key was not pressed, P1.1～the P1.4 input was 1 entirely, and when key was pressed, corresponding I/O line was input as " 0 ", thereby made program can discern key-press status, realized man-machine conversation.

Referring to Fig. 6, power supply P links to each other with the positive pole of diode D1 and D2 respectively with the positive pole of back-up source E, and the negative pole of diode D1 and D2 links to each other simultaneously, is data memory U4 and time-of-day clock UT power supply.Power supply P power supply is used in D1 conducting during normal power supply, whole calling device, and in the moment that has a power failure, D1 ends, D2 conducting, back-up source E power supply.The CS of data-carrier store U4 end becomes " 0 " simultaneously, and the CS of time-of-day clock UT end also becomes " 0 " in real time, thereby forbids the read-write operation to these two chips, thereby the assurance data are not damaged and the clock circuit operate as normal.

This ward calling device is owing to there is the function of automatic metered call information, thereby calling berth, call time, medical personnel's response time etc. all can obtain timely spotless track record, it can pass to medical personnel so that in time rescue and nurse quickly and accurately with patient's calling, it both can be used as the source book of handling the medical care responsibility, made things convenient for patient again, patient is had a sense of security, and minimizing paramedic's inspection number of times, can be used as and estimate medical personnel's working condition, the objective basis of working attitude, it will have very big benefit for the nursery work and the hospital management that improve all kinds of hospitals.The working routine of this machine can adapt to the different situations of each hospital by change software, thereby adaptability is strong, and the radical of wiring between medical duty room and the ward is significantly reduced, and wiring is greatly simplified.

Claims

1, a kind of ward calling device that memory function is arranged comprises:

(1) call button AN;

(2) cable L;

(3) be used for the host computer system MS of controlling call information, it comprises microprocessor MC, keyboard KB, printer PR, display D and alarm AL;

(4) power supply P;

It is characterized in that:

(3.1) microprocessor MC comprises single-chip microcomputer U1, program storage U3, data memory U4, printer interface U5 and real-time time-of-day clock UT;

(5) connect the extension set AM a plurality of in parallel of call button and host computer system MS, be used for the loopback call information, it comprises impact damper U09, counter U10, eight channel data selector U11 and comparator circuit U12.

2, calling device as claimed in claim 1 is characterized in that the pin 6(SUC of said single-chip microcomputer U1) link to each other with alarm AL by transistor T 1, relay R ELAY.

3, calling device as claimed in claim 1 is characterized in that said display D by three shift register UA, UB, pin 10,11(RXD, the TXD of UC and single-chip microcomputer U1) link to each other.

4, as claim 1,2 or 3 described calling devices, it is characterized in that said keyboard KB is made up of button K+, K-, KP, KT, the P1.1～P1.4 with single-chip microcomputer U1 links to each other respectively, when being used for printing and school.

5, calling device as claimed in claim 1; the positive pole that it is characterized in that said power supply P and back-up source E links to each other with the positive pole of diode D1, D2 respectively; link to each other with the Vcc end of data memory U4 and time-of-day clock UT after the negative pole of diode D1, D2 links to each other, be used for power down protection.