CN106952434A - A kind of SCM Based infrared voice warning system - Google Patents

Abstract

Patent of the present invention is related to a kind of SCM Based infrared voice warning system, and the system is made up of two subsystems, is signal acquisition subsystem and control subsystem respectively, as shown in Figure 1.Among signal acquisition subsystem, detected by signal acquisition module after abnormal conditions generation, main frame by signal transmission to signal acquiring system, after the secondary judgement of main frame, as truly having abnormal conditions, then driving speech chip sends the alarm of people immediately, then drives relay module to start alarm lamp.Situation now and temperature acquisition data are passed into control subsystem by serial ports.The main frame of control subsystem, which receives to be handled and sent after signal instruction, allows buzzer sounding and in the address that occurs extremely of liquid crystal screen display of main frame.When not having abnormal conditions, controllers can be by the situation of each address of keyboard inquiry.After such as alarming, controllers can also be cancelled by keyboard alarms.

Description

A kind of SCM Based infrared voice warning system

Technical field

Patent of the present invention is related to electronic design art, more particularly to a kind of SCM Based infrared voice alarm system System.

Background technology

With the progress and development of modern science and technology, modernization high-tech product is increasingly more, electric equipment products Also become better and better, the living standard of people there has also been very big raising, and many families there are the valuables of many.These things Product readily become the stealing object of criminal, in order to protect the property safety of the people, so as to develop infrared voice report Alert system, many families and big store are assembled with infrared voice warning system, are effectively prevented the bad of criminal Intentions, are the trouble that the people solve many.The alarm that the present invention is studied is the simple infrared line language using single-chip microcomputer as core Sound warning system, its group will be made up of signal acquiring system and control system.Material is cheaply simple in construction, is used suitable for private savings.

Patent of invention content

Patent of the present invention is related to a kind of SCM Based infrared voice warning system, and the system is made up of two subsystems, point It is not signal acquisition subsystem and control subsystem, as shown in Figure 1.Signal acquisition subsystem includes serial communication modular, signal Acquisition module and ISD1700 voice alarm modules；Control subsystem is adopted comprising relay module, keyboard buzzer module, temperature Collect module, 12864 LCD MODULEs and serial communication modular.Among signal acquisition subsystem, examined by signal acquisition module Measure after abnormal conditions generation, the main frame by signal transmission to signal acquiring system, after the secondary judgement of main frame, such as truly There are abnormal conditions, then driving speech chip sends the alarm of people immediately, then drive relay module to start alarm lamp.Will Situation and temperature acquisition data now passes to control subsystem by serial ports.It is laggard that the main frame of control subsystem receives signal Row handle and send instruction allow buzzer sounding and main frame liquid crystal screen display extremely occur address.In no abnormal feelings When condition occurs, controllers can be by the situation of each address of keyboard inquiry.After such as alarming, controllers can also pass through Keyboard cancels alarm.

Brief description of the drawings

Fig. 1：Infrared voice warning system structure chart.

Fig. 2：Reflective transmitting receives instance graph.

Fig. 3：Reflective transmitting receives instance graph.

Fig. 4：555 timer cut-away views.

Fig. 5：The multivibrator circuit figure of 555 components composition.

Fig. 6：Infrared transmitting device figure.

Fig. 7：Signal acquisition figure.

Fig. 8：Control subsystem program flow diagram.

Embodiment

In order that the object, technical solution and advantage of patent of the present invention are more clearly understood, below in conjunction with accompanying drawing and implementation Example, patent of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain Patent of the present invention, is not intended to limit the present invention patent.

Patent of the present invention is related to a kind of SCM Based infrared voice warning system, and the system is by two subsystems group Into being signal acquisition subsystem and control subsystem respectively, as shown in Figure 1.Signal acquisition subsystem comprising serial communication modular, Signal acquisition module and ISD1700 voice alarm modules；Control subsystem includes relay module, keyboard buzzer module, temperature Spend acquisition module, 12864 LCD MODULEs and serial communication modular.Among signal acquisition subsystem, by signal acquisition mould Block has been detected after abnormal conditions generation, the main frame by signal transmission to signal acquiring system, after the secondary judgement of main frame, such as Truly there are abnormal conditions, then driving speech chip sends the alarm of people immediately, then drive relay module to start police instruction Lamp.Situation now and temperature acquisition data are passed into control subsystem by serial ports.The main frame of control subsystem receives letter Handled after number and send instruction allow buzzer sounding and main frame liquid crystal screen display extremely occur address.Do not having When abnormal conditions occur, controllers can be by the situation of each address of keyboard inquiry.After such as alarming, controllers It can be cancelled by keyboard and alarmed.

Further, the hardware circuit of transmitter module is as shown in Figure 2.When the particular range for thering is foreign matter to swarm into infra-red detection It is interior, ultrared transmitting circuit is changed, the signal received will be converted into electric signal and be input to monolithic by infrared emission tube In machine, after single-chip microcomputer is by judgement, if it is determined that having after abnormal conditions generation, speech chip and relay will be driven to send immediately Sound, while abnormal conditions are transmitted into liquid crystal significant screen by serial communication reports police.Infrared emitting and receiving mode is divided into two Kind, one kind is direct-injection type, refers to luminous tube and reception pipe placed opposite in transmitting and the two ends of controlled substance, there is a spacing centre From.It is another be it is reflective, the present invention refers to that luminous tube is put as shown in Figure 3 side by side with reception pipe using reflective.

Further, 555 timer internal structures of the invention as shown in figure 4,555 timers be a kind of analog circuit and The medium-scale integration device that digital circuit is combined, its function admirable, the scope of application is very wide, a small amount of Resistor-Capacitor Unit of outside adjunction Monostable flipflop and multivibrator can be easily constituted, as shown in figure 5, and being not required to outward element and can constituting apply Schmitt trigger.

Further, infrared probe of the invention uses reflective connection, the enable termination signal acquisition system of 555 circuits The P3.7 pin of system single-chip microcomputer.P3.7 pin continue outwards output 30Hz side, and its dutycycle is 9:1（Low 9 is high by 1）Ripple, for 555 circuit intermittent works are driven, the detection range of infrared probe is ensured whereby（Because the operating efficiency of infrared ray transmitting terminal It is to be reduced with the growth of time）.When infrared probe situation without exception occurs, infrared receiving tube outwards exports high level, By 4 import and exports and behind the door, output is still high level, because external interrupt uses touching for trailing edge in the system Originating party formula, so single-chip microcomputer does not have external interrupt；And when infrared probe has abnormal conditions, it will be low to outside output Level, by with behind the door, output is exactly low level, at this moment notify single-chip microcomputer one external interrupt of generation, then single-chip microcomputer is again Scanning connection AMP_1（P20）, AMP_2 (P21), AMP_3 (P22) 3 pins, determine it is which address goes out on earth with this Abnormal conditions are showed, there is problem, be to judge twice, can accurately find out the infrared probe address of abnormal conditions.It is red Outside line emitter is as shown in Figure 6.

Further, the software program function of signal emission module of the invention refers to the letter for collecting infrared receiver end Number judgement of process tentatively, if port is implicitly present in exception, will feed back information to the single-chip microcomputer of acquisition subsystem.Program Main flow such as Fig. 7, shown in Fig. 8.

Further, part system program code of the invention is as follows：

The communication of // two machines //

char SEIR_R[16];// receive data buffering

bit R_FLAG ; //1 ：Among data frame is being received

char DATCNT ;// data counts pointer

char COMNUM ;

bit DBUF_F ;There are new data 0 in // 1 caching：Data in caching have been read

Function name：init_S

Function:Serial port baud rate (9600)

void init_S(void)

{

TMOD |=0x20;

TH1=0xfd;

TL1=0xfd;

TR1= 1;

REN= 1;

SM0= 0;

SM1= 1;

ES = 1;

}

Function name：s_command

Function：Data framing, sends data frame

Parameter：Command data

void s_command(char *command)

{

SBUF = 0xB4;// frame head

while(*command)

{

if(TI == 1)

{

TI = 0;

SBUF = *command;// frame data

command ++ ;

}

}

while(!TI);

TI = 0;

SBUF = 0XEE;// postamble

while(!TI);

TI = 0;

}

Function name：seil_int

Function：Serial ports is interrupted

Two machine communication is realized, serial communication uses RS232 agreements, a start bit, 8 data bit, the stop bits of one.Ensure two Machine proper communication, the baud rate of data is identical.When port occurs abnormal herein, new serial ports is ejected, in real time response

void seil_int(void) interrupt 4

{

if(RI == 1)

{

RI = 0;

If (DBUF_F==0) // data in caching are walked by reading, can receive new instruction

{

if((R_FLAG == 1)&&(SBUF !=0XEE)) // start to receive data frame

{

// write data into caching

SEIR_R[DATCNT] = SBUF;

// buffer pointers, increase

DATCNT ++;

}

Else if ((SBUF==0xB4)s ＆＆ (R_FLAG==0)) // detect data frame and start

R_FLAG = 1;

Else if ((SBUF==0xEE) (R_FLAG==1)) // detect data frame end

{

COMNUM = DATCNT;

SEIR_R[DATCNT] = 0x00;// add end mark to the character string received

DATCNT = 0;// data pointer zero is ready to receive next time

R_FLAG = 0;// frame, which is received, to be terminated, and frame is received into flag clear

DBUF_F = 1;// data frame receipt is finished, and new data occurs in caching

}

}

Else // data cached is not read, it is to avoid loss of data

{

ES = 0;

s_command("busy");// send busy mark

ES = 1;

}

}

}

Function name：CMPCHAR

Function：Character string comparison

char CMPCHAR (char *cpmchar)

{

char nequ = 0;

char num = 0;

while(*cpmchar)

{

if(*cpmchar == SEIR_R[num])

{

cpmchar ++;

num ++;

}

else

{

nequ = 1;

break;

}

}

return !nequ;

}

The preferred embodiment of patent of the present invention is the foregoing is only, patent is not intended to limit the invention, it is all in the present invention Any modification, equivalent and improvement made within the spirit and principle of patent etc., should be included in the guarantor of patent of the present invention Within the scope of shield.

Claims (6)

1. patent of the present invention is related to a kind of SCM Based infrared voice warning system, the system is made up of two subsystems, It is signal acquisition subsystem and control subsystem respectively.

2. a kind of SCM Based infrared voice warning system according to claim 1, signal acquisition subsystem is included Serial communication modular, signal acquisition module and ISD1700 voice alarm modules；Control subsystem includes relay module, keyboard Buzzer module, temperature collect module, 12864 LCD MODULEs and serial communication modular.

3. a kind of SCM Based infrared voice warning system according to claim 1, works as in signal acquisition subsystem In, detected by signal acquisition module after abnormal conditions generation, the main frame by signal transmission to signal acquiring system, by master After the secondary judgement of machine, such as truly there are abnormal conditions, then driving speech chip sends the alarm of people immediately, then drives relay mould Block starts alarm lamp, and situation now and temperature acquisition data are passed into control subsystem by serial ports.

4. a kind of SCM Based infrared voice warning system according to claim 1, the main frame of control subsystem connects By handled after signal and send instruction allow buzzer sounding and main frame liquid crystal screen display extremely occur address.

5. a kind of SCM Based infrared voice warning system according to claim 1, is not having abnormal conditions When, controllers can be by the situation of each address of keyboard inquiry.

6. a kind of SCM Based infrared voice warning system according to claim 1, after alarming, controls people Member can also be cancelled by keyboard to alarm.