CN202887377U

CN202887377U - Intelligent burglar and fire alarm system based on RFID (Radio Frequency Identification) technology

Info

Publication number: CN202887377U
Application number: CN 201220612996
Authority: CN
Inventors: 王娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-20
Filing date: 2012-11-20
Publication date: 2013-04-17
Anticipated expiration: 2022-11-20

Abstract

The utility model provides an intelligent burglar and fire alarm system based on an RFID (Radio Frequency Identification) technology, comprising a controller module, a power supply module, an intrusion detection module, a radio frequency detection module, a smoke detection module, a sound-light alarm module and a network communication module, wherein signal wires led out from the intrusion detection module, the radio-frequency detection module and the smoke detection module are respectively connected with the controller module; the intelligent burglar and fire alarm system based on the RFID technology further comprises a radio frequency card and an HF (High Frequency) card reader, wherein the HF card reader is connected with the controller module; the sound-light alarm module and the network communication module are connected with the controller module; and the power supply module is used for providing standard voltage to other modules. According to the intelligent burglar and fire alarm system based on the RFID technology, the intelligent management of staff and articles is achieved; and the cost is low and the reliability is high.

Description

Intelligent anti-theft fire alarm system based on the RFID technology

Technical field

The utility model relates to a kind of burglary-resisting system based on the RFID radio-frequency technique, especially can the monitor staff and the state of valuables, and according to circumstances intelligence judges.

Background technology

At present, known burglary-resisting system is comprised of fore-end, control section.Wherein but present front end sniffer can only realize simple intrusion detection or will invade the personnel record with recording apparatus, can not identify on one's own initiative the invasion personnel.The movement of valuables in equally can not sensing chamber.

The utility model content

In order to overcome the deficiency of existing burglary-resisting system, the intelligent management of realization personnel and valuables, the utility model provides a kind of burglary-resisting system of the RFID of use technology, this burglary-resisting system can not only realize intrusion detection, and energy identification personnel and valuables, automatically make the decision of whether reporting to the police according to different scenes.

For achieving the above object, the utility model provides a kind of intelligent anti-theft fire alarm system based on the RFID technology, it is characterized in that: comprise controller module, power module, intrusion detection module, radio frequency detection module, Smoke Detection module, sound and light alarm module and network communication module, wherein, described intrusion detection module, radio frequency detection module, the Smoke Detection module signal wire of drawing links to each other with control module respectively; Described intelligent anti-theft fire alarm system based on the RFID technology also comprises the radio-frequency card based on the RFID technology that personnel or portability article is carried out mark, and the HF high frequency card reader that can read described radio-frequency card, described HF high frequency card reader is connected with described controller module, described sound and light alarm module is connected with described controller module with the network communication module, and described power module provides normal voltage for other each modules.

Wherein, described radio-frequency card is built in the portability article (for example valuables) or by the user and carries.

Wherein, described radio-frequency card is the radio-frequency card of label or key chain form.

Wherein, described intelligent anti-theft fire alarm system based on the RFID technology also comprises: clock module and liquid crystal display.

Wherein, described being constructed as follows based on each module in the intelligent anti-theft fire alarm system of RFID technology:

Controller module: adopt 51 traditional series monolithics of atmel corp as system controller, AT89S52 is 8 single-chip microcomputers of CMOS of a low-power consumption, high performance 51 kernels, sheet includes can be the repeatedly erasable 1000 times Flash ROM (read-only memory) in 8K space, Random Access Data storer (RAM) with 256bytes, 32 I/O, 3 16 programmer timing counters.And single-chip microcomputer that should series can directly just can download to single-chip microcomputer with serial ports or parallel port without fever writes.Have cheaply, use the characteristics such as simple.

Power module: in view of single-chip microcomputer, RFID card reader etc. need stably 5V, the 12V power supply is in the Switching Power Supply of the built-in 5V/12V of dustbin.Sensor or other have the element of special power requirement, realize by the voltage transitions chip on the circuit board.

Clock module: adopt crystal oscillator on the circuit board as signal source of clock,

Intrusion detection module: adopt laser to pipe, adopt two pairs of Laser emission to receive pipe is installed in respectively a both sides, with testing staff's turnover situation.Laser has the characteristics of precision height, high directivity, and monochromaticity and coherence are good.It is long that laser has a measuring distance to pipe, and detection time is short, the advantages such as strong interference immunity, signal stabilization and sensitivity height, and price is also cheaper, and laser that can the outputting standard Transistor-Transistor Logic level is to tube sensor.Two pairs of laser are set to pipe before and after in the system, according to the priority that triggers along seeking the behavior of judging that current time enters or withdraws from a room.

The radio frequency detection module: select radio-frequency card to detect, radio-frequency card claims again wireless smart card, is a kind of cipher card of the built-in special secret key number of exempting to power, and it utilizes the two-way radio radio-frequency technique, finishes the number identification of card, and coverage can reach more than one meter.This new science and technology is widely used in the fields such as identity discriminating, credit discriminating, robotization control, safety precaution because having plurality of advantages, and its security, confidentiality, practicality are that various general strick precaution circuit are incomparable at present.Adopt the radio-frequency technique of HF high frequency in this scheme, its coverage can reach 50cm, can realize contactless detection, because its zone of action is the border circular areas take card reader as the center of circle, enough is used for the gate inhibition.The UHF super high frequency technique that unnecessary use price is high.Use integrated radio-frequency card reader module, communication is carried out in the RS-485 communication excuse of Application standard.

The Smoke Detection module: adopt MQ-2 type gas sensor, have the characteristics such as high sensitivity, fast response, driving circuit are simple, when being applicable to breaking out of fire to the detection of smog.

Sound and light alarm module: select piezo buzzer, piezoelectric buzzer is that the piezoelectric ceramic piece behind the high pressure extreme pressure is sticked on the vibration sheet metal, after adding alternating voltage, can produce because of piezoelectric effect mechanically deform and stretch and shrink, utilize this characteristic that sheet metal is vibrated and send the sound.Piezo buzzer cheap uses extensively, and hardware circuit also is easier to realize, but needs to satisfy the applicable voltage range that can work.Behind the normal sounding, the magnitude of current that continues consumption is relatively large, and the electric current that starting moment needs is three times of general persistent current, than power consumption.The property understood that gives in addition prompting is also relatively poor.

Network communication module: select RS485 to carry out Internet Transmission.RS485 is a kind of cloth net mode of current trend, and it is convenient to be characterized in implementing, and is highly suitable for point-to-point serial communication or the network of up to a hundred nodes is arranged.The load capacity of RS485 network is very strong, and longer transmission distance can reach 1200 meters in theory, and cheap, easy to use, data are reliable.

Liquid crystal display: adopt 12864 liquid crystal displays, have low in energy consumption, volume is little, the advantage such as lightweight, ultra-thin, visual in image, the viewing area is large.

The beneficial effects of the utility model are, by laser the checkout equipment of the front ends such as pipe is detected intrusion behavior after, with radio-frequency technique personnel identity is identified, accomplish that automatic distinguishing has authority personnel and invader.When detecting valuables and taken out of the room, automatically judge according to situation in the room simultaneously, only allow to be authorized to personnel and make this class behavior.Realized the intelligent management of personnel, article, comparing with the system of application image collection, recognition technology has the advantages that cost is low, reliability is high.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the system block diagram of an embodiment of the utility model;

Fig. 2 is the algorithm flow chart of an embodiment of the utility model.

Embodiment

According to embodiment of the utility model, a kind of intelligent anti-theft fire alarm system based on the RFID technology is provided, its system block diagram is as shown in Figure 1.In Fig. 1, system is by formations such as control module (MCU), power module, clock module, radio frequency detection module, Smoke Detection module, sound and light alarm module, network communication module, liquid crystal display.Wherein power module provides invasion signal and fire alarm for other each modules provide the 5/12V voltage of standard, the signal wire that intrusion detection module, Smoke Detection module are drawn to link to each other with control module respectively; The radio frequency detection module directly links to each other with control module, the RFID radio frequency card that induction owner or valuables carry, identity code is passed to control module by data line, the algorithm that moves by single-chip microcomputer in the control module is realized identification, the management to personnel, article, automatically determine whether to send alerting signal for different situations, wherein warning device is divided into the remote-end alarm by reporting to the police by this locality of sound and light alarm module and being undertaken by the network communication module.LCD MODULE is used for presetting the demonstration of system state and parameter.

Among the embodiment, the substantially supporting driving circuit of single-chip microcomputer adopts homemade pcb board, the integrated monolithic machine, the basic modules such as driving circuit, power supply, clock module, and preset the RS-485 interface, the TTL incoming level carries out communication.

Among the embodiment, smoke transducer adopts MQ-2 type gas sensor, is provided with adjustable resistor at output terminal, can adjust according to the load-carrying needs of output terminal.Apply suitable excitation, make it to export the standard voltage signal of 0-5V.

Among the embodiment, laser uses LM339 voltage comparator chip to the connecting circuit of pipe, and the voltage in the photoresistance and standard voltage signal are compared, and the switching value of outputting standard is used for single-chip microcomputer.

With reference to figure 2, provided the programmed algorithm block diagram among the embodiment.According to block diagram, system can make different reflections according to different situations.For example: 1, enter the room as owner, or the indoor owner of having other people enter the room, do not report to the police; 2, in indoor situation without owner, the people who does not hold radio-frequency card enters the room, reports to the police; 3, when owner's carrying noble article withdraw from a room or the indoor owner's of having situation under have the people to withdraw from a room, do not report to the police; 4, in indoor situation without owner, the people who does not hold radio-frequency card withdraws from a room, and reports to the police.The trigger pip that smoke transducer is triggered and reports to the police as does not directly need to enter deterministic process.

At last, the above embodiments only are used for illustrating the utility model, and it should not be construed is that protection domain of the present utility model is carried out any restriction.And, it will be apparent to those skilled in the art that do not breaking away under the utility model spirit and the principle, the various equivalent variation that above-described embodiment is carried out, modification and in the text not the various improvement of description all within protection domain of the present utility model.

Claims

1. intelligent anti-theft fire alarm system based on the RFID technology, it is characterized in that: comprise controller module, power module, intrusion detection module, radio frequency detection module, Smoke Detection module, sound and light alarm module and network communication module, wherein, described intrusion detection module, radio frequency detection module, the Smoke Detection module signal wire of drawing links to each other with control module respectively; Described intelligent anti-theft fire alarm system based on the RFID technology also comprises radio-frequency card, and HF high frequency card reader, described HF high frequency card reader is connected with described controller module, described sound and light alarm module is connected with described controller module with the network communication module, and described power module provides normal voltage for other each modules.

2. intelligent anti-theft fire alarm system according to claim 1, it is characterized in that: described radio-frequency card is built in the portability article.

3. intelligent anti-theft fire alarm system according to claim 2 is characterized in that, described radio-frequency card is the radio-frequency card of label or key chain form.