CN203503102U

CN203503102U - Safety protection switch box

Info

Publication number: CN203503102U
Application number: CN201320649279.7U
Authority: CN
Inventors: 刘国良; 于磊杰
Original assignee: Beijing Polytechnic
Current assignee: Beijing Polytechnic
Priority date: 2013-10-21
Filing date: 2013-10-21
Publication date: 2014-03-26
Anticipated expiration: 2023-10-21

Abstract

The utility model provides a safety protection switch box comprising a box body and a system circuit in the box body. The system circuit comprises a microprocessor, a smoke sensor, a temperature sensor, a noise acquisition circuit, a wireless signal transmitting module, and a relay. The smoke sensor, the temperature sensor, and the noise acquisition circuit are respectively connected with a digital input end of the microprocessor. The wireless signal transmitting module is connected with a digital output end of the microprocessor, and a control signal output end of the microprocessor is connected with a main power supply of a line of a building. The safety protection switch box can be used to send the fire hazard alarming information to the monitoring host in a wired manner and in a wireless manner, and the fire hazard alarming function can be realized; and at the same time, the main power supply of the line of the building can be cut off by the relay, once the fire hazard occurs, and therefore other dangerous conditions caused by the broken line can be prevented, and the loss can be reduced.

Description

Safeguard protection fuse-box

Technical field

The utility model relates to a kind of safeguard protection fuse-box, particularly relates to a kind of safeguard protection fuse-box that is applied to fire protection alarm system.

Background technology

Along with rapid development of economy, for more and more intensive high residential building and office block, fire-fighting system is of crucial importance for people's property and life security, fire protection alarm system is not installed in many old-fashioned houses and office space at present, or there is aging circuit in the fire protection alarm system in some buildings, the problem such as lack of standardization that connects up, and has larger potential safety hazard.

Existing fire protection alarm system is generally, on the roof of house or office space, one warning device is set, and in this warning device, sensor is installed.This warning device is connected with the monitoring host computer of Central Control Room by circuit, once breaking out of fire will send fire alarm signal to monitoring host computer with wired mode.The problem of existing fire protection alarm system is, once big fire has burnt out electric wiring, cannot realize fire alarm function, also can arrive because of problems affect such as short circuit, electric leakages the Electrical Safety in whole region simultaneously, thereby cause great personnel, property loss.

Utility model content

In view of the foregoing, the purpose of this utility model is to provide a kind of safeguard protection fuse-box, this safeguard protection fuse-box can send fire alarm signal to monitoring host computer by wired and wireless two kinds of modes simultaneously, even if fire has burnt out circuit, still can realize fire alarm function; Meanwhile, once breaking out of fire can be cut off the general supply of buildings circuit by relay, avoided, because circuit damages other dangerous situation causing, can reducing loss.

For achieving the above object, the utility model is by the following technical solutions:

Safeguard protection fuse-box, comprises the circuit system in box body and box body, it is characterized in that, circuit system comprises microprocessor, smoke transducer, temperature sensor, Noise Acquisition circuit, wireless signal sending module, relay,

This smoke transducer, temperature sensor, Noise Acquisition circuit are connected with the data input pin of this microprocessor respectively, this wireless signal sending module is connected with the data output end of this microprocessor, and the control signal output terminal of this microprocessor is connected with the general supply of circuit in buildings by this relay.

Further,

The data output end of described microprocessor is connected with the monitoring host computer of Central Control Room by wire cable.

Circuit system also comprises audible-visual annunciator, clock circuit and power module, this audible-visual annunciator is connected with the signal output part of described microprocessor, this clock circuit is connected with the clock signal input terminal of described microprocessor, and this power module is connected with the power input of described microprocessor.

Described monitoring host computer comprises processor, reception of wireless signals module and alarm; The data input pin of this processor is connected with this reception of wireless signals module, and the control signal output terminal of this processor is connected with this alarm.

On described box body, be also provided with switch, button and wire cable connection jack etc. are set.

The utility model has the advantage of:

Safeguard protection fuse-box of the present utility model, monitoring host computer transmission fire alarm information by from wired and wireless two kinds of modes to Central Control Room, even if wire cable is burnt by big fire, fire alarm information also can send to monitoring host computer by wireless signal sending module, has guaranteed the realization of fire alarm function; Meanwhile, once breaking out of fire can be cut off the general supply of buildings circuit by relay, avoided, because circuit damages other dangerous situation causing, can reducing loss.

Accompanying drawing explanation

Fig. 1 is schematic appearance of the present utility model.

Fig. 2 is structural representation of the present utility model.

Fig. 3 A-Fig. 3 G is the circuit theory diagrams of the utility model one specific embodiment.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1 is schematic appearance of the present utility model, Fig. 2 is structural representation of the present utility model, as shown in the figure, the disclosed safeguard protection fuse-box of the utility model is installed on each floor top of interior of building, it comprises the circuit system in box body 1 and box body 1, this circuit system comprises microprocessor 2, smoke transducer 3, temperature sensor 4, Noise Acquisition circuit 5, wireless signal sending module 6, relay 10 etc., this smoke transducer 3, temperature sensor 4, Noise Acquisition circuit 5 is connected with the data input pin of microprocessor 2 respectively, this wireless signal sending module 6 is connected with the data output end of microprocessor 2, the control signal output terminal of microprocessor 2 is connected with the general supply (contactor coil of general supply) of circuit in buildings by relay 10, the data output end of microprocessor 2 is also connected with monitoring host computer 100 by wire cable.

Circuit system in box body 1 also comprises audible-visual annunciator 7, clock circuit 8 and power module 9, audible-visual annunciator 7 is connected with the signal output part of microprocessor 2, clock circuit 8 is connected with the clock signal input terminal of microprocessor 2, and power module 9 is connected with the power input of microprocessor 2.

Monitoring host computer 100 comprises processor 101, reception of wireless signals module 102 and alarm 103; The data input pin of processor 101 is connected with reception of wireless signals module 102, and the control signal output terminal of processor 101 is connected with alarm 103.

Minute mist particle data, temperature data and the noise signal data transmission of the surrounding environment that smoke transducer 3, temperature sensor 4, Noise Acquisition circuit 5 gather are processed to microprocessor 2, microprocessor 2 to these data processings after respectively with smoke particle concentration threshold, temperature threshold and the noise signal threshold set, if surpassed threshold value one of in three, just thought fire has occurred; Now, microcontroller 2 is controlled audible-visual annunciator 7 and is sent warning, pilot relay 10 cuts off the general supply of buildings circuit, and by wireless signal sending module 6, smokescope data, temperature data, noise signal data and warning message are sent to monitoring host computer 100, microprocessor 2 also sends to monitoring host computer 100 by wire cable by warning message:

Monitoring host computer 100 receives after the warning message that safeguard protection fuse-box sends by reception of wireless signals module 102 or wire cable, controls alarm 103 and sends alarm, opens and sprays fire extinguishing operation.

Fig. 3 A-Fig. 3 G is the circuit theory diagrams of the utility model one specific embodiment.As shown in the figure, in a specific embodiment, microprocessor 2 is selected single-chip microcomputer STC89C52;

The MC14468 chip with sound and light of alarm that smoke transducer 3 adopts motorola inc to produce, 1 pin of this chip is connected with the INTO of single-chip microcomputer STC89C52; MC14468 chipset fire detection with report to the police in one, can realize multiple spot parallel detection, coordinate peripheral circuit can form multiple spot smog warning system, when smoke particle being detected, drive its peripheral piezoelectric buzzer or piezo-electric loudspeaker connecting to send chimes of doom, drive LED flash luminous simultaneously.

Noise Acquisition circuit 5 is to utilize a miniature electret microphone (Micl in Fig. 3 C) acquisition noise signal, by the two-way operational amplification circuit of the two operational amplification circuits of LM358, provides necessary signal gain.When the noise decibel of circuit collection surpasses the input sensitivity threshold value of setting, a high voltage of circuit output is to microprocessor.

Temperature sensor 4 uses the DS18B20 chip of Dallas Semiconductor companies, this chip have digital output, fast response time, measuring accuracy high, can realize the features such as multiple spot detection, can measure the temperature range of-55～+ 125 ℃.

Wireless signal sending module 6 and reception of wireless signals module 102 can adopt the nRF401 type monolithic radio frequency transceiver based on radio communication of U.S. Nordic company.

Power module 9, for the working power that is circuit system by 220V external power source or the voltage transitions of internal battery (lithium battery), is circuit system power supply.As shown in Fig. 3 G, the three-terminal voltage-stabilizing power module being comprised of MC7805 and peripheral circuit can convert direct current 12V to 5V, also 12V can be converted to 9V voltage.

Clock circuit 8 is comprised of trickle charge clock chip DS1302 and peripheral circuit thereof, and it is connected with the P3 port of single-chip microcomputer STC89C52, while providing for microprocessor 2, the clock signal of grading.

In addition, as shown in Figure 1, on box body 1, be also provided with switch 11, button 12 and wire cable 13 connection jacks etc. are set.

Safeguard protection fuse-box of the present utility model, monitoring host computer transmission fire alarm information by from wired and wireless two kinds of modes to Central Control Room, even if wire cable is burnt by big fire, fire alarm information also can send to monitoring host computer by wireless signal sending module, has guaranteed the realization of fire alarm function; Meanwhile, when surrounding environment breaking out of fire being detected, can by relay, cut off the general supply of buildings circuit, avoid, because circuit damages other dangerous situation causing, can reducing loss.

The above is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; in the situation that not deviating from spirit and scope of the present utility model; the apparent changes such as any equivalent transformation based on technical solutions of the utility model basis, simple replacement, within all belonging to the utility model protection domain.

Claims

1. safeguard protection fuse-box, comprises the circuit system in box body and box body, it is characterized in that, circuit system comprises microprocessor, smoke transducer, temperature sensor, Noise Acquisition circuit, wireless signal sending module, relay,

2. safeguard protection fuse-box as claimed in claim 1, is characterized in that, the data output end of described microprocessor is connected with the monitoring host computer of Central Control Room by wire cable.

3. safeguard protection fuse-box as claimed in claim 2; it is characterized in that; circuit system also comprises audible-visual annunciator, clock circuit and power module; this audible-visual annunciator is connected with the signal output part of described microprocessor; this clock circuit is connected with the clock signal input terminal of described microprocessor, and this power module is connected with the power input of described microprocessor.

4. safeguard protection fuse-box as claimed in claim 3, is characterized in that, described monitoring host computer comprises processor, reception of wireless signals module and alarm; The data input pin of this processor is connected with this reception of wireless signals module, and the control signal output terminal of this processor is connected with this alarm.

5. safeguard protection fuse-box as claimed in claim 4, is characterized in that, is also provided with switch, button and wire cable connection jack etc. are set on described box body.