CN202373115U - Domestic intelligent security system - Google Patents

Abstract

The utility model discloses a home intelligent security system, which is mainly composed of a digital password lock, a flame sensor, a smoke sensor, a through-beam photoelectric switch, a temperature sensor, an intelligent controller and a man-machine interface. The MCU module, power module, parameter monitoring module, door lock control module and alarm module in the control box are composed. The human-machine interface is composed of a liquid crystal display and a fingerprint collection camera. The fingerprint recognition technology can accurately control the opening of the digital combination lock , the home environment is monitored by flame, smoke, temperature sensors and through-beam photoelectric switches, and local sound and light alarms are issued for unexpected accidents, and SMS alarms are realized by using the GSM network. The head of the household can obtain accurate information at the first time and take countermeasures. The utility model has the outstanding advantages of simple structure, low production cost, convenient installation and use, and high "safety protection" reliability, and has excellent prospects for popularization and use.

Description

Home Smart Security System

technical field

The utility model relates to an automatic control device for safety protection of the home environment, which belongs to the technical field of intelligent safety protection, in particular to a home intelligent security system, which is especially suitable for the installation and use of modern family houses, and has excellent Excellent fire prevention and anti-theft security protection function.

Background technique

With the rapid development of my country's national economy and the continuous improvement of the living standards of the broad masses of the people, the family living environment of the majority of urban and rural residents in our country has been greatly improved. Preventive work is an important basic work for governments at all levels to carry out comprehensive management of social security. In order to meet the needs of many family residences for security work, according to the investigation, some security control equipment suitable for installation and use in family residences have been developed. For example: the product named "Home Security Intelligent Controller (Patent No. ZL200820023888.0)", its working principle is to connect with the public telephone network through two-way communication, and can communicate with the central processing module at the same time, and it receives alarms through wireless remote control The signal is transmitted to the central processing module through the internal data transmission bus to make a judgment, and through the internal data transmission bus, the central processing module receives remote control instruction information and performs related operations. Another example: a product named "A Home Intelligent Security Protection System (Patent No. ZL200920065187.8)", which includes a monitoring unit centered on ARM, a detector connected to it at the point to be tested, a camera and an alarm module , the ARM-centered monitoring unit is bidirectionally connected to the mobile phone and the computer through the GPRS module and the Internet. It combines ARM technology to realize the functions of rapid alarm, evidence recording and remote monitoring required by security. However, it is needless to say that they still have technical defects of high production cost and high power consumption in actual use, and their functions are relatively single, most of which only have an alarm function, and the alarm signal is not issued by the most reliable and mature technology. GSM mobile network technology. This is a major cause of the generally low reliability of remote alarms in existing security equipment, and this is where the existing security equipment urgently needs to be further improved and perfected. This is also the problem that the utility model wants to solve.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and propose a home intelligent security system.

The purpose of this utility model is achieved through the following technical solutions:

A home intelligent security system, which includes a digital code lock, a flame sensor, a smoke sensor, a through-beam photoelectric switch, a temperature sensor, an intelligent controller and a man-machine interface, is characterized in that: said intelligent controller is equipped with It is composed of MCU module, power module, parameter monitoring module, door lock control module and alarm module in the control box. The human-machine interface is composed of a liquid crystal display and a fingerprint collection camera connected to the MCU module. The digital code lock is connected by a command wire. For the door lock control module, the flame sensor, smoke sensor, through-beam photoelectric switch, and temperature sensor are connected to the parameter monitoring module by a set of sensing wires.

The utility model also has the following technical characteristics:

Said power supply module includes a power supply circuit, a clock circuit and a reset circuit.

Said alarm module is connected with the SIM card of the head of the household through the remote GSM network to carry out SMS alarm.

Said alarm module is a local sound and light alarm.

It is assembled in this way: firstly, the flame sensor, smoke sensor and temperature sensor are respectively fixedly installed at the position to be monitored, and then the through-beam photoelectric switch is fixedly installed on the balcony and window where illegal climbing and intrusion are easy The liquid crystal display is used to display the working status of the system modules, temperature information and operation prompts of the system, and can also be equipped with corresponding sound and light prompts, which is especially convenient for users to operate and use. When the family head of the household needs to open the door, put the finger on the fingerprint collection camera to input the fingerprint information into the MCU module, and the door lock control module will compare and identify the pre-collected and entered fingerprint information before sending it to the digital combination lock. The operation of opening the door is realized by opening the door command; when the flame sensor, or smoke sensor, or temperature sensor, or the through-beam photoelectric switch connected to the parameter monitoring module detects the leakage of combustible gas, smoke, fire, or illegal intrusion in the room In the event of unexpected events, the parameter monitoring module transmits electrical signals to the MCU module and triggers the alarm module, which can perform local sound and light alarms or send SMS alarms through the remote GSM network and the SIM card connection of the householder.

Compared with the prior art, the utility model has the following advantages:

The utility model proposes a home intelligent security system, which accurately controls the digital combination lock through fingerprint recognition technology, and adds a variety of environmental monitoring sensors to monitor the internal environment of the home in a timely manner, and can also use the GSM network to monitor Realize remote SMS alarm for emergencies, so that the head of the household can obtain accurate information at the first time and take timely countermeasures, which greatly improves the reliability of "security".

Description of drawings

Fig. 1 is the structural representation of the utility model, also makes summary accompanying drawing.

Fig. 2 is a system block diagram of the working principle of the utility model.

Figure 3 is a schematic diagram of the monitoring and alarming process of the main program.

Notes in the accompanying drawings: 1 is the fingerprint collection camera, 2 is the digital password lock, 3 is the command wire, 4 is the anti-theft door, 5 is the liquid crystal display, 6 is the control box, 7 is the sensor wire, 8 is the Flame sensor, 9 is a smoke sensor, 10 is a through-beam photoelectric switch, and 11 is a temperature sensor.

Detailed ways:

Further describe embodiment of the present utility model below in conjunction with accompanying drawing:

The utility model proposes a home intelligent security system, which is mainly composed of a digital combination lock 2, a flame sensor 8, a smoke sensor 9, a through-beam photoelectric switch 10, a temperature sensor 11, an intelligent controller and a man-machine interface. The intelligent controller is composed of an MCU module, a power supply module, a parameter monitoring module, a door lock control module and an alarm module assembled in the control box 6, and the man-machine interface includes a liquid crystal display 5 connected to the MCU module and a fingerprint collection camera 1 , the digital combination lock 2 is fixedly installed on the anti-theft door 4 and is connected with the door lock control module by the command wire 3, the liquid crystal display 5 is installed on the anti-theft door 4 according to the indoor display mode, and the fingerprint collection camera 1 is pressed The outdoor fingerprint input mode is installed on the anti-theft door 4, and the alarm module can be two alarm modes of local sound and light alarm and sending short messages through the remote GSM network and the SIM card of the head of the household. The flame sensor 8, the smoke sensor 9 and the temperature sensor 11 are respectively fixedly installed at the positions of the points to be monitored indoors, and then the through-beam photoelectric switch 10 is fixedly installed at the balcony and window positions where illegal climbing and intrusion are easy to occur. Said flame sensor 8, smoke sensor 9, temperature sensor 11 and through-beam photoelectric switch 10 are connected with the parameter monitoring module by a group of sensing wires 7.

More specifically: the power supply module includes a power supply circuit, a clock circuit and a reset circuit, which can convert 220V AC power into 5V DC power for the MCU module, parameter monitoring module, door lock control module, alarm module and human-machine interface of the above-mentioned intelligent controller Work.

The MCU module uses STC89C52 single-chip microcomputer as the main controller; the liquid crystal display 5 is an LCD12864 dot-matrix graphic display device, the fingerprint collection camera 1 uses a CMOS camera as a sensor, and PS1802 (DSP chip) as a fingerprint processor.

The original component of the flame sensor 8 is the LM393 infrared receiver, which outputs a single signal at 5V DC voltage and has a signal output indicator. The effective output signal is low level, and is used to detect heat sources with wavelengths in the range of 760 nm to 1100 nm. The detection angle is up to 60 degrees.

The smoke sensor 9 is composed of LM393 and ZYMQ-2 gas sensor, which has dual signal output (analog output and TTL level output) under 5V DC voltage and has signal output indication, and the effective signal of TTL output is low level (when The signal light is on when the output is low level, and it can be directly connected to the microcontroller); the analog output voltage is 0~5V, the higher the concentration, the higher the voltage, and it has good sensitivity to liquefied petroleum gas, natural gas, and city gas, with long service life and stable and reliable operation High performance and fast response recovery features.

The model of temperature sensor 11 is 18B20, which is used to detect the indoor ambient temperature, and can be sensed to the display for real-time temperature display.

The internal structure of the through-beam photoelectric switch 10 is a light-emitting diode and a phototransistor. The on and off of the phototransistor is controlled by gathering light. When receiving the light beam from the light-emitting diode, the phototransistor is turned on and outputs a high level , when the object to be detected blocks the light beam, the phototransistor is cut off, and the output is low level, which is used for timely monitoring and alarming of illegal intrusion.

It works like this: firstly, the system is initialized, and then the fingerprint information of the head of household and family members is collected and entered in advance. The capacity of this system is 120 fingerprints, and new users can be added to expand the capacity as needed. When the family head of the household needs to open the door, they only need to put their fingers on the position of the fingerprint collection camera 1 to input the fingerprint information into the MCU module, and the door lock control module will compare and identify the fingerprint information collected and entered in advance. Its working principle Yes: The communication between the fingerprint module and the upper computer is realized by two communication protocols, serial communication and USB communication, because the STC89C52 single-chip microcomputer selected in this system and the serial interface of the module are both UART, and both work at 5V voltage , serial communication can be realized between the serial port of the STC89C52 microcontroller and the fingerprint module. Write a program to let the STC89C52 single-chip microcomputer serial port sender send the corresponding command data packet to the module and then receive the feedback data packet sent back by the module through the serial port receiving end, and then let the STC89C52 single-chip microcomputer analyze the execution status of the module, let it realize fingerprint collection and fingerprint comparison After a series of complex actions, the fingerprint recognition function is finally completed. Only after the recognition is correct can the door opening instruction be sent to the digital combination lock 2 to realize the door opening operation. When the flame sensor 8, or the smoke sensor 9, or the temperature sensor 11, or the through-beam photoelectric switch 10 connected to the parameter monitoring module detects the occurrence of combustible gas leakage, smoke, fire, or illegal intrusion and other accidents in the room , the parameter monitoring module transmits the electrical signal to the MCU module and triggers the alarm module, and then the acousto-optic alarm sends out an alarm sound accompanied by lights flashing, and the SMS alarm is sent through the remote GSM network connection with the householder’s SIM card to promptly inform the householder of any accidents at home The situation, so that the head of the household can take countermeasures in the first time, can greatly improve the reliability of the work on the safety of the residential environment.

In addition, the utility model can also implement the following expansion scheme: Internet of Things and single-chip computer access to the Internet, through various information sensing equipment, such as: various sensors, radio frequency identification (RFID) technology, global positioning system, infrared sensor, laser scanner , gas sensors and other devices and technologies, real-time collection of any object or process that needs to be monitored, connected, and interacted, and various required information such as sound, light, heat, electricity, mechanics, chemistry, biology, and location can be collected. A huge network formed by combining with the Internet, its purpose is to realize the connection between things and things, things and people, and all things and the network, so as to facilitate identification, management and control. From the perspective of technical architecture, the Internet of Things can be divided into three layers: perception layer, network layer and application layer. The sensing layer is composed of various sensors and sensor gateways, including carbon dioxide concentration sensors, temperature sensors, humidity sensors, QR code tags, RFID tags and readers, cameras, GPS and other sensing terminals. The role of the perception layer is equivalent to the nerve endings of human eyes, ears, nose, throat and skin. It is the source of the Internet of Things to identify objects and collect information. Its main function is to identify objects and collect information. The network layer is composed of various private networks, the Internet, wired and wireless communication networks, network management systems, and cloud computing platforms. It is equivalent to the human nerve center and brain, and is responsible for transmitting and processing information obtained by the perception layer. The application layer is the interface between the Internet of Things and users (including people, organizations, and other systems). It combines with industry needs to realize intelligent applications of the Internet of Things more widely.

Obviously, the above-mentioned embodiment is only one of the implementation modes that can realize the technical solution of the present utility model, and the scope of protection claimed by the utility model is not limited by this embodiment, and also includes those obtained by those of ordinary skill in the art according to the technical solution. Other embodiments that can vary.

Claims (4)

1. A smart home security system, which includes a digital combination lock (2), a flame sensor (8), a smoke sensor (9), a through-beam photoelectric switch (10), a temperature sensor (11), an intelligent controller and a human Machine interface, characterized in that: said intelligent controller is composed of MCU module, power supply module, parameter monitoring module, door lock control module and alarm module assembled in the control box (6), and the man-machine interface is composed of The liquid crystal display (5) connected to the MCU module and the fingerprint collection camera (1) are composed, the digital password lock (2) is connected to the door lock control module by the command wire (3), the flame sensor (8), the smoke sensor (9), The through-beam photoelectric switch (10) and the temperature sensor (11) are connected to the parameter monitoring module by a set of sensing wires (7). 2. The home intelligent security system according to claim 1, characterized in that: said power module includes a power circuit, a clock circuit and a reset circuit. 3. The home intelligent security system according to claim 1 or 2, characterized in that: said alarm module is connected to the SIM card of the householder through a remote GSM network to issue a short message alarm. 4. The home intelligent security system according to claim 1 or 2, characterized in that: said alarm module is a local sound and light alarm.

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