CN104134308A - Anti-theft alarm device and method for precious articles - Google Patents

Abstract

An anti-theft alarm device for valuables belongs to the field of computers, and the invention aims to solve the problem that the existing anti-theft methods for valuables are single. The invention comprises a single-chip microcomputer, an RFID card reader, a pyroelectric infrared sensor, a clock circuit, a database and an on-site loudspeaker; The electronic label signal output terminal is connected with the electronic label signal input terminal of the single-chip microcomputer; the data transmission terminal of the single-chip microcomputer is connected with the data transmission terminal of the database; the alarm command output terminal of the single-chip microcomputer is connected with the alarm command input terminal of the on-site loudspeaker; It is connected with the clock signal transmission end of the clock circuit. It does not exclude the way of human patrolling. No matter whether the security guard is on the scene or not, it will be in the anti-theft state. It can intelligently identify who is the thief, and carry out intelligent anti-theft on the basis of not affecting the normal patrol of the security guard. The anti-theft effect is good.

Description

Anti-theft alarm device and method for valuables

technical field

The invention relates to anti-theft alarm technology and belongs to the field of computers.

Background technique

Most of the valuables are displayed in exhibition halls or collected by wealthy private individuals. There are currently many measures for the preservation of valuables, but they are always unsatisfactory. Whether it is an exhibition hall or a private house, the security of valuables is inseparable from security guards, but only human patrols will allow thieves to find security guards when the valuables are not there. If only electronic devices are used to prevent theft, thieves will also find and remove them Loopholes in electronic devices can lead to crimes. In short, existing anti-theft methods always focus on one aspect, allowing criminals to take advantage of them. Once stolen, the economic loss is huge.

Contents of the invention

The object of the present invention is to provide a valuables anti-theft alarm device in order to solve the existing problem of single anti-theft methods for valuables.

The valuables anti-theft alarm device of the present invention includes a single-chip microcomputer, an RFID card reader, a pyroelectric infrared sensor, a clock circuit, a database and a live speaker;

The human body heat signal output terminal of the pyroelectric infrared sensor is connected with the incoming signal input terminal of the single-chip microcomputer; the electronic label signal output terminal of the RFID card reader is connected with the electronic label signal input terminal of the single-chip microcomputer; The transmission end is connected;

The alarm command output terminal of the single-chip microcomputer is connected with the alarm command input terminal of the on-site loudspeaker;

The clock signal transmission end of the single chip microcomputer is connected with the clock signal transmission end of the clock circuit.

The valuables anti-theft alarm method is characterized in that the method comprises the following steps:

Step 1. Judging the output signal of the pyroelectric infrared sensor, and then knowing whether someone is approaching the valuables preservation area; if someone is approaching, then perform step 2; if no one is approaching, then return to perform step 1;

Step 2. Determine whether the electronic tag on the visitor can be read; if there is no electronic tag on the visitor, perform step 7; if it can be read, read the electronic label on the visitor, and then perform step 3;

Step 3. Compare the read electronic tag with the information in the database, and initially judge whether it is a legal security personnel; if the electronic tag is legal data in the database, then perform step 4; if the electronic tag is not in the database legal data, go to step 7;

Step 4, use the infrared camera to collect various characteristic information of the human body of the incoming person, and then perform step 5;

Step 5. Compare the read characteristic information with the information in the database to further judge whether the visitor is a legal security personnel; if the comparison result shows that the visitor is indeed a member of the legal security personnel, then perform step 6 ; If the comparison result shows that the visitor is not a member of the legal security personnel, then perform step seven;

Step 6. Judging the output signal of the vibration sensor, and then obtaining whether the protective cover of the valuables is attacked; if there is vibration, then perform step 7; if there is no vibration, then end the program;

Step 7. Carry out on-site alarm and remote alarm at the same time.

Advantages of the present invention: the valuables anti-theft alarm device of the present invention does not exclude the way of human patrol, no matter whether the security guard is at the scene or not, it will be in the anti-theft state, intelligently identify who is the thief, and carry out on the basis of not affecting the normal patrol of the security guard. Intelligent anti-theft, good anti-theft effect.

Description of drawings

Fig. 1 is the principle block diagram of valuables anti-theft alarm device described in the present invention;

Fig. 2 is a specific circuit diagram of the valuables anti-theft alarm device of the present invention.

Detailed ways

Specific embodiment one: below in conjunction with Fig. 1 illustrate present embodiment, the valuables anti-theft alarm device described in the present embodiment, it comprises single-chip microcomputer 1, RFID card reader 3, pyroelectric infrared sensor 5, clock circuit 6, database 7 and Live speakers 8;

The human body heat signal output end of the pyroelectric infrared sensor 5 is connected with the incoming signal input end of the single-chip microcomputer 1; the electronic tag signal output end of the RFID card reader 3 is connected with the electronic tag signal input end of the single-chip microcomputer 1; End is connected with the data transmission end of database 7;

The alarm command output end of single-chip microcomputer 1 is connected with the alarm command input end of field loudspeaker 8;

The clock signal transmission end of the single chip microcomputer 1 is connected with the clock signal transmission end of the clock circuit 6 .

The pyroelectric infrared sensor 5 is realized by a model SD02 pyroelectric infrared sensor.

Placing valuables within the security range of the pyroelectric infrared sensor 5, once someone enters this area, they can be detected immediately, but it eliminates a situation that when legal security personnel patrol in the security range, they will not It will call the police, and legal security personnel will wear their own specific RFID electronic tags when patrolling. The electronic tags contain the basic information of the security personnel and can be read by the RFID card reader 3. If a thief enters the Area, there are two situations: he does not have an electronic tag, he has an electronic tag; if the RFID card reader 3 does not read the electronic tag information of the incoming person, it will call the police; if he has an electronic tag, the read information and the database 7 Compare the information in the electronic tag to see if it is legal data. The electronic information of the legal security personnel and the on-duty data of each security personnel are stored in the database 7. The comparison results include whether the data displayed on the electronic label is a security personnel, and further includes Whether the security guard is the security guard who should be in the time period, if there is a dissatisfaction, it shows that it is illegal data, and an alarm is sent. If everything is normal, it means that the electronic tag worn by the visitor is legal. It is preliminarily judged that the visitor is a patrolling security personnel during this period, and the alarm will not be activated. In this way, the technology of treating people who enter the security range differently is realized.

Specific embodiment two: this embodiment is described further to embodiment one, also comprises vibration sensor 4, and valuables are placed in the protective cover, and vibration sensor 4 detects the vibration signal of protective cover, and the vibration signal output end of vibration sensor 4 is connected with single chip microcomputer 1 connected to the vibration signal input terminal.

The vibration sensor 4 is realized by adopting the model ND-1 omnidirectional vibration sensor.

In addition to adding an anti-theft method, the setting of this embodiment further determines whether the security personnel are guarding and stealing themselves. If the security personnel appear within the security range with a legal identity, it is not acceptable to break the protective cover and take valuables, which will be detected by the vibration sensor. 4 detected, alarm.

Specific embodiment three: this embodiment further explains embodiment one or two, and also includes an infrared camera 2, a serial interface circuit 9, a host computer 10, a display 11 and a speaker 12;

The scene acquisition image output end of infrared camera 2 is connected with the scene acquisition image input end of single-chip microcomputer 1; The alarm command output terminal of the host computer 10 is connected with the alarm command input terminal of the loudspeaker 12.

Infrared camera 2 collects various physical characteristics of the incoming person, compares it with the information in the database 7, and further judges whether the incoming person is a real security guard, rather than an illegal person wearing a legal electronic tag.

The images collected by the infrared camera 2 will also be transmitted to the host computer 10 in real time, and displayed on the display 11, so that it is clear who is coming in the monitoring room. When humans are negligent in monitoring, automatic judgment plays a role to make up for human negligence. Every time the alarm is not only on-site, but also carried out remotely, the host computer 10 also drives the loudspeaker 12 to report to the police, so that more security personnel can learn the alarm signal.

Specific embodiment four: the present embodiment is described below in conjunction with Fig. 2, the valuables anti-theft alarm method described in the present embodiment, the method comprises the following steps:

Step 1. Judging the output signal of the pyroelectric infrared sensor, and then knowing whether someone is approaching the valuables preservation area; if someone is approaching, then perform step 2; if no one is approaching, then return to perform step 1;

Step 2. Determine whether the electronic tag on the visitor can be read; if there is no electronic tag on the visitor, perform step 7; if it can be read, read the electronic label on the visitor, and then perform step 3;

Step 3. Compare the read electronic tag with the information in the database, and initially judge whether it is a legal security personnel; if the electronic tag is legal data in the database, then perform step 4; if the electronic tag is not in the database legal data, go to step 7;

Step 4, use the infrared camera to collect various characteristic information of the human body of the incoming person, and then perform step 5;

Step 5. Compare the read characteristic information with the information in the database to further judge whether the visitor is a legal security personnel; if the comparison result shows that the visitor is indeed a member of the legal security personnel, then perform step 6 ; If the comparison result shows that the visitor is not a member of the legal security personnel, then perform step seven;

Step 6. Judging the output signal of the vibration sensor, and then obtaining whether the protective cover of the valuables is attacked; if there is vibration, then perform step 7; if there is no vibration, then end the program;

Step 7. Carry out on-site alarm and remote alarm at the same time.

By adopting the anti-theft technology of this embodiment, the anti-theft protection can be carried out comprehensively for valuables.

Claims (6)

1. Anti-theft alarm device for valuables, characterized in that it comprises single-chip microcomputer (1), RFID card reader (3), pyroelectric infrared sensor (5), clock circuit (6), database (7) and on-site loudspeaker ( 8); The human body heat signal output end of the pyroelectric infrared sensor (5) is connected with the incoming signal input end of the single-chip microcomputer (1); the electronic tag signal output end of the RFID card reader (3) is connected with the electronic tag signal input of the single-chip microcomputer (1) end is connected; the data transmission end of single-chip microcomputer (1) is connected with the data transmission end of database (7); The alarm command output end of the single-chip microcomputer (1) is connected with the alarm command input end of the field loudspeaker (8); The clock signal transmission end of the single chip microcomputer (1) is connected with the clock signal transmission end of the clock circuit (6). 2. according to the described anti-theft alarm device for valuables of claim 1, it is characterized in that it also includes a vibration sensor (4), the valuables are placed in the protective cover, the vibration sensor (4) detects the vibration signal of the protective cover, and the vibration sensor (4) ) is connected with the vibration signal input end of the single chip microcomputer (1). 3. The valuables anti-theft alarm device according to claim 2, further comprising an infrared camera (2), a serial interface circuit (9), a host computer (10), a display (11) and a loudspeaker (12); The on-site acquisition image output end of the infrared camera (2) is connected with the on-site acquisition image input end of the single-chip microcomputer (1); the single-chip microcomputer (1) communicates with the upper computer (10) through the serial interface circuit (9), and the upper computer (10) The display signal output end of the display signal is connected with the display signal input end of the monitor (11); the alarm command output end of the host computer (10) is connected with the alarm command input end of the loudspeaker (12). 4. The valuables anti-theft alarm device according to claim 2, characterized in that the vibration sensor (4) is realized by a model ND-1 omnidirectional vibration sensor. 5. The valuables anti-theft alarm device according to claim 1, characterized in that the pyroelectric infrared sensor (5) is realized by a model SD02 pyroelectric infrared sensor. 6. Anti-theft alarm method for valuables, characterized in that the method comprises the following steps: Step 1. Judging the output signal of the pyroelectric infrared sensor, and then knowing whether someone is approaching the valuables preservation area; if someone is approaching, then perform step 2; if no one is approaching, then return to perform step 1; Step 2. Determine whether the electronic tag on the visitor can be read; if there is no electronic tag on the visitor, perform step 7; if it can be read, read the electronic label on the visitor, and then perform step 3; Step 3. Compare the read electronic tag with the information in the database, and initially judge whether it is a legal security personnel; if the electronic tag is legal data in the database, then perform step 4; if the electronic tag is not in the database legal data, go to step 7; Step 4, use the infrared camera to collect various characteristic information of the human body of the incoming person, and then perform step 5; Step 5. Compare the read characteristic information with the information in the database to further judge whether the visitor is a legal security personnel; if the comparison result shows that the visitor is indeed a member of the legal security personnel, then perform step 6 ; If the comparison result shows that the visitor is not a member of the legal security personnel, then perform step seven; Step 6. Judging the output signal of the vibration sensor, and then obtaining whether the protective cover of the valuables is attacked; if there is vibration, then perform step 7; if there is no vibration, then end the procedure; Step 7. Carry out on-site alarm and remote alarm at the same time.