CN201489633U - Control host circuit for electrical fire module - Google Patents
Control host circuit for electrical fire module Download PDFInfo
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- CN201489633U CN201489633U CN2009201825858U CN200920182585U CN201489633U CN 201489633 U CN201489633 U CN 201489633U CN 2009201825858 U CN2009201825858 U CN 2009201825858U CN 200920182585 U CN200920182585 U CN 200920182585U CN 201489633 U CN201489633 U CN 201489633U
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Abstract
The utility model relates to the field of electric circuits and particularly relates to a control host circuit for an electrical fire module. The control host circuit for the electrical fire module comprises a singlechip control circuit, a power supply circuit, an LCD display circuit, a keyboard circuit, a watch-dog circuit, an indicator light, a RS 458 communication circuit, a tocsin generating circuit and a tocsin power amplifier. The utility model adopts the principle that a RS 458 communication interface is adopted, serial data signals can be received and transmitted to the electrical fire detection module; the leakage current, temperature signal, current value and alarming switching value output can be displayed and transmitted to a system host through a system bus; and the functional operations for electrical parameter display, voice alarming, electronic map display and the like are set.
Description
Technical field
The utility model relates to electronic circuit field, relates in particular to a kind of main control system circuit that is used for the electrical fire module.
Background technology
The application of electricity is extensively and profoundly in productive life.The electric wire cable of many buildings building lays very intensive.Along with China's rapid economy development, power consumption increases greatly.And in fire, the ratio that electrical fire accounts for always is quite high, crowded place particularly, should pay attention to electrical fire the early detection early warning, get rid of hidden danger.The generation of electrical fire, most when restoring electricity again after supply line's excess current, short circuit, broken string and the power failure people's carelessness cause, according to the interrelated data statistics, electrical fire account for that fire takes place more than 30%.According to national correlation method regulation, when fire takes place, should be able to cut off the general supply of respective storey, avoid because of by electric wiring with fire spread, protect the safety of fire fighter when putting out a fire simultaneously.Therefore, the electronic surveillance system that needs a cover monitoring electrical fire.The electronic surveillance system of electrical fire generally comprises the electrical fire monitor module, is installed on the scene that needs inspection, and the main control system system, and case is used to write down each handset electric alarm situation in Control Room.
The utility model content
The utility model is exactly a kind of main control system circuit that is used for the electrical fire module that proposes at this demand.
The technical solution of the utility model is:
The main control system circuit that is used for the electrical fire module of the present utility model comprises:
One single chip machine controlling circuit, its input is connected in keyboard circuit, watchdog circuit and power circuit, and its output is connected in LCD display circuit, pilot lamp and alert sound circuit takes place, and its input and output are connected in the RS458 telecommunication circuit;
One power circuit, its output terminal are connected in described single chip machine controlling circuit and alert sound power amplifier;
One LCD display circuit, its input is connected in described single chip machine controlling circuit, and its output is connected in the LCD module;
One keyboard circuit, its output is connected in described single chip machine controlling circuit;
One watchdog circuit, its output is connected in described single chip machine controlling circuit;
One pilot lamp, its input is connected in described single chip machine controlling circuit;
One RS458 telecommunication circuit, its input and output are connected in described single chip machine controlling circuit;
Circuit takes place in one alert sound, and its input is connected in described single chip machine controlling circuit, and its output is connected in alert sound power amplifier;
One alert power amplifier, its input are connected in described alert sound circuit and power circuit take place, and its output is connected in loudspeaker.
Further, described single chip machine controlling circuit is that 8051 chips and connection crystal oscillating circuit thereon constitute, and described crystal oscillating circuit is that a crystal oscillator and two sides connect the electric capacity composition.
Further, described power circuit is that the output terminal of transformer constitutes through the power rectifier voltage stabilizing chip that a full-bridge rectification unit of being made up of 4 diodes is connected with its output terminal, the input end of described power rectifier voltage stabilizing chip and be connected to 2 filter capacitors and output terminal also and be connected to 2 filter capacitors.
Further, described keyboard circuit is 2 * 5 matrix form keyboard scan circuit.
Further, described watchdog circuit is that 5045 chips constitute with the RC oscillatory circuit that is connected thereon.
Further, described pilot lamp is that light emitting diode and the series connection current-limiting resistance thereon that is connected in 8051 chip ports constitutes.
Further, described RS458 telecommunication circuit is to be made of RS485 communication chip and connection resistance thereon.
Further, circuit takes place described alert sound is to be made of 9561 sound generation chips and peripheral resistance and electric capacity, and the port that its switch control end is 8051 chips is by connecting semiconductor switch pipe thereon.
Further, described alert sound power amplifier is to be made of the LM386 operational amplifier to be, its drive end is that the port of 8051 chips is controlled the semiconductor switch pipe by the photoelectrical coupler that connects thereon.
The utility model by 51 chip microcontroller a kind of main control system circuit, with the supporting use of the electronic surveillance system of electrical fire, can realize warning net management and function setting and sound and light alarm prompt facility.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
Principle of the present utility model adopts the RS485 communication interface, can receive and send serial data signal to the electrical fire detection module, demonstration leakage current, temperature signal, current value, alarm switch amount are exported and are sent to system host by system bus, show feature operation settings such as electric parameter, audio alert, demonstration electronic chart.
Consult shown in Figure 1ly, the main control system circuit that is used for the electrical fire module of the present utility model comprises:
One single chip machine controlling circuit 1, its input are connected in keyboard circuit 4, watchdog circuit 5 and power circuit 2, and its output is connected in LCD display circuit 3, pilot lamp 6 and alert sound circuit 8 takes place, and its input and output are connected in RS458 telecommunication circuit 7;
One power circuit 2, its output terminal are connected in described single chip machine controlling circuit 1 and alert sound power amplifier 9;
One LCD display circuit 3, its input are connected in described single chip machine controlling circuit 1, and its output is connected in the LCD module;
One keyboard circuit 4, its output are connected in described single chip machine controlling circuit 1;
One watchdog circuit 5, its output are connected in described single chip machine controlling circuit 1;
One pilot lamp 6, its input are connected in described single chip machine controlling circuit 1;
One RS458 telecommunication circuit 7, its input and output are connected in described single chip machine controlling circuit 1;
Circuit 8 takes place in one alert sound, and its input is connected in described single chip machine controlling circuit 1, and its output is connected in alert sound power amplifier 9;
One alert power amplifier 9, its input are connected in described alert sound circuit 8 and power circuit 2 take place, and its output is connected in loudspeaker.
Consult shown in Figure 2ly, described single chip machine controlling circuit 1 is that 8051 chip U1 and the crystal oscillating circuit that connects thereon constitute, and described crystal oscillating circuit is that a crystal oscillator Y2 and two sides connect capacitor C 20, C21 forms.
The output terminal that described power circuit 2 is transformers constitutes through the power rectifier voltage stabilizing chip U7 that a full-bridge rectification unit of being made up of 4 diode D1～D4 is connected with its output terminal, the input end of described power rectifier voltage stabilizing chip U7 and be connected to 2 filter capacitor C8, C9 and output terminal also and be connected to 2 filter capacitor C10, C11.
Described keyboard circuit 4 is matrix form keyboard scan circuit of 2 * 5.
Described watchdog circuit 5 are 5045 chip U5 be connected resistance R 5 thereon, the RC oscillatory circuit of capacitor C 22 constitutes.
Described pilot lamp 6 is that the LED 1～LED4 and the series connection current-limiting resistance R8～R11 thereon that are connected in 8051 chip U1 ports constitute.
Described RS458 telecommunication circuit 7 is to be made of RS485 communication chip and connection resistance R 30 thereon.
Circuit 8 takes place described alert sound is to be made of 9561 sound generation chip U4 and peripheral resistance and electric capacity, and the port that its switch control end is 8051 chip U1 is by connecting semiconductor switch pipe T2 thereon.
Described alert sound power amplifier 9 is to be made of LM386 operational amplifier U3 to be, its drive end is that the port of 8051 chip U1 is controlled semiconductor switch pipe T3 by the photoelectrical coupler T4 that connects thereon.
The data-signal of the single-chip microcomputer of present embodiment divides the two-way input: the first via, and the keyboard circuit by button K1-K10 forms is provided with systematic parameter; The second the tunnel, when alerting signal is input to system bus, communication interface (6) pin, (7) pin by signal transmitting and receiving chip U2 receive data-signal, and (10) pin that communication interface (1) pin by chip after chip U2 conversion connects single-chip microcomputer sends to single-chip microcomputer with alerting signal.
51 single-chip microcomputer U1 have detected the data-signal input, after 51 single-chip microcomputer U1 internal processes logic analyses are judged, divide four tunnel outputs.
Pass by stream alerting signal when input when 51 single-chip microcomputer U1 have detected second, first via output by 51 single-chip microcomputer U1 (35) pin output low level, through resistance R 8, makes LED1 bright, and the expression alerting signal is that excess current is reported to the police; The second tunnel output, by 51 single-chip microcomputer U1 (38) pin output high level, make triode T1 conducting, (39) pin output low level through R2, makes LED5 bright, drive the photoelectric coupled circuit conducting, make triode T4 conducting, this bipod acting in conjunction is carried out audible alarm thereby drive the audible alarm circuit of being made up of jointly audio frequency expansion chip U3 and Music Clip U4; Third Road output, (5) pin, (6) pin and (7) pin that are met LCD chip for driving U6 by 51 single-chip microcomputer U1 (6) pin, (7) pin and (8) pin respectively drive LCD chip U6 work, data are from (13) the pin output of 51 single-chip microcomputer U1, be input to (4) pin of LCD chip U6, thereby alert data is presented on the LCD screen; The four tunnel output by 51 single-chip microcomputer U1 (12) pin output low level, makes not conducting of triode T2, and loudspeaker do not believe that key sound sends.
When single-chip microcomputer had detected the input of first via reset signal, first via output by 51 single-chip microcomputer U1 (35) pin, (34) pin, (33) pin, (32) pin output high level, all went out four LED light, and expression does not have the alerting signal input; The second tunnel output, by 51 single-chip microcomputer U1 (38) pin output low level, make triode T1 by, (39) pin output high level, through R2, LED5 is gone out, not conducting of photoelectric coupled circuit, enlarge chip U3 and the common not conducting of forming of audible alarm circuit of Music Clip U4 thereby make, do not have sound to report to the police by audio frequency; Third Road output, (5) pin, (6) pin and (7) pin that are met LCD chip for driving U6 by 51 single-chip microcomputer U1 (6) pin, (7) pin and (8) pin respectively drive LCD chip U6 work, data are from (13) the pin output of 51 single-chip microcomputer U1, be input to (4) pin of LCD chip U6, thereby data presentation will respectively be set on the LCD screen; The four tunnel output by 51 single-chip microcomputer U1 (12) pin output high level, makes triode T2 conducting when button is pressed, drive loudspeaker and send alarm sound.
The bridge rectifier circuit that the power supply of this circuit is made up of diode D1-D4, through capacitor C 8, capacitor C 9 filtering, be input to the 1st pin of power supply chip U7, through the voltage stabilizing of interior U7 portion, DC voltage by the 3rd pin output 5V, through capacitor C 10, capacitor C 11 high and low frequency filtering, provide+direct-current working volts of 5V to this circuit.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.
Claims (9)
1. a main control system circuit that is used for the electrical fire module is characterized in that, comprising:
One single chip machine controlling circuit (1), its input is connected in keyboard circuit (4), watchdog circuit (5) and power circuit (2), its output is connected in LCD display circuit (3), pilot lamp (6) and alert sound circuit (8) takes place, and its input and output are connected in RS458 telecommunication circuit (7);
One power circuit (2), its output terminal are connected in described single chip machine controlling circuit (1) and alert sound power amplifier (9);
One LCD display circuit (3), its input is connected in described single chip machine controlling circuit (1), and its output is connected in the LCD module;
One keyboard circuit (4), its output are connected in described single chip machine controlling circuit (1);
One watchdog circuit (5), its output are connected in described single chip machine controlling circuit (1);
One pilot lamp (6), its input are connected in described single chip machine controlling circuit (1);
One RS458 telecommunication circuit (7), its input and output are connected in described single chip machine controlling circuit (1);
Circuit (8) takes place in one alert sound, and its input is connected in described single chip machine controlling circuit (1), and its output is connected in alert sound power amplifier (9);
One alert power amplifier (9), its input are connected in described alert sound circuit (8) and power circuit (2) take place, and its output is connected in loudspeaker.
2. main control system circuit according to claim 1, it is characterized in that: described single chip machine controlling circuit (1) is that 8051 chips (U1) and connection crystal oscillating circuit thereon constitute, and described crystal oscillating circuit is that a crystal oscillator (Y2) and two sides connect electric capacity (C20, C21) composition.
3. main control system circuit according to claim 1, it is characterized in that: described power circuit (2) be transformer output terminal through one by 4 diodes (the power rectifier voltage stabilizing chip (U7) that the full-bridge rectification unit of D1～D4) form is connected with its output terminal constitutes, the input end of described power rectifier voltage stabilizing chip (U7) and be connected to 2 filter capacitors (C8, C9) and output terminal also and be connected to 2 filter capacitors (C10, C11).
4. main control system circuit according to claim 1 is characterized in that: described keyboard circuit (4) is 2 * 5 matrix form keyboard scan circuit.
5. main control system circuit according to claim 1 is characterized in that: described watchdog circuit (5) is that 5045 chips (U5) constitute with RC vibration (R5, the C22) circuit that is connected thereon.
6. main control system circuit according to claim 1 is characterized in that: described pilot lamp (6) is the light emitting diode that is connected in 8051 chips (U1) port (LED1～LED4) and series connection current-limiting resistance (R8～R11) constitute thereon.
7. main control system circuit according to claim 1 is characterized in that: described RS458 telecommunication circuit (7) is to be made of RS485 communication chip and connection resistance (R30) thereon.
8. main control system circuit according to claim 1, it is characterized in that: circuit (8) takes place described police's sound is to be made of 9561 sound generation chips (U4) and peripheral resistance and electric capacity, and its switch control end is that the port of 8051 chips (U1) passes through to connect semiconductor switch pipe (T2) thereon.
9. main control system circuit according to claim 1, it is characterized in that: described alert sound power amplifier (9) is to be made of LM386 operational amplifier (U3) to be, its drive end is that the port of 8051 chips (U1) passes through to connect photoelectrical coupler (T4) control semiconductor switch pipe (T3) thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201825858U CN201489633U (en) | 2009-08-13 | 2009-08-13 | Control host circuit for electrical fire module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201825858U CN201489633U (en) | 2009-08-13 | 2009-08-13 | Control host circuit for electrical fire module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201489633U true CN201489633U (en) | 2010-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201825858U Expired - Fee Related CN201489633U (en) | 2009-08-13 | 2009-08-13 | Control host circuit for electrical fire module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201489633U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976493A (en) * | 2010-09-29 | 2011-02-16 | 傅哲龙 | Electrical fire warning device |
| CN104269921A (en) * | 2014-08-26 | 2015-01-07 | 国家电网公司 | Failure tripping sound-light alarm device of substation |
-
2009
- 2009-08-13 CN CN2009201825858U patent/CN201489633U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976493A (en) * | 2010-09-29 | 2011-02-16 | 傅哲龙 | Electrical fire warning device |
| CN104269921A (en) * | 2014-08-26 | 2015-01-07 | 国家电网公司 | Failure tripping sound-light alarm device of substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20130813 |