CN211906467U

CN211906467U - STM32F 103-based fingerprint identification security system

Info

Publication number: CN211906467U
Application number: CN202020748008.7U
Authority: CN
Inventors: 于天河; 张惟祺
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-11-10
Anticipated expiration: 2030-05-07

Abstract

The utility model relates to a fingerprint identification security protection system based on STM32F103 belongs to the internet of things technology field. The invention provides a method for helping people to acquire indoor and outdoor related information, and for fingerprint sensing detection, temperature and humidity detection, smoke monitoring, wireless transmission and LCD display. The sensor module can analyze fingerprint information, and also can analyze data such as smoke, temperature and humidity and the like when a fire disaster occurs to judge different states of the fire disaster, and when the fire disaster is in a dangerous state, the singlechip module sends out an alarm function through an acousto-optic system by detecting a threshold value of internal data; the transmitting unit of the wireless transmission module is connected with the door magnetic sensor, so that the opening and closing state of the door can be monitored, and information can be quickly and accurately transmitted to a user; the LCD displays the collected data information. The invention is mainly used for household control and security protection.

Description

STM32F 103-based fingerprint identification security system

Technical Field

The utility model particularly relates to a fingerprint identification security protection system based on STM32F103 belongs to the internet of things technology field.

Background

With the rapid development and application of technologies such as the internet, an embedded type and the like, a large number of security products gradually emerge in daily life of people. The security products not only bring convenience to people, but also improve the efficiency of doing things of people. Therefore, the stability and the safety of life in the household environment are improved, so that people can efficiently and easily finish trivial matters in daily life, and the method becomes a hot spot which is increasingly concerned by all human beings. As an important direction for the research and development of the future Internet of things, the fingerprint identification security system has a great development prospect. The fingerprint identification security system is an integrated and automatic intelligent system formed by applying various technologies, organically combines devices closely related to life by taking a house as a platform, carries out indoor or outdoor monitoring and control, and can create a living environment with high stability, strong convenience, high efficiency and safety for residents.

The traditional security system still has very big defect and not enough at present, often easily receives external environment's influence, makes its stability descend, and the expressive force is not enough in the aspect of information security simultaneously. While the times are developing, the appearance of a plurality of network payment means brings convenience to the life of people, and simultaneously, the security problem of personal information leakage is also accompanied.

SUMMERY OF THE UTILITY MODEL

In order to overcome the weak point of current security protection system, the utility model provides an intelligent, comprehensive fingerprint identification security protection system. Compared with the prior art, the equipment effectively solves the following key problems: on one hand, the problem that people remotely acquire indoor environment information and display all the information through an LCD interface is effectively solved, and the user can conveniently check the information; in the aspects of fire alarm, remote control and the like, the accuracy of fire detection and the intellectualization of family control are improved by adopting a multi-sensor fusion technology and a wireless transmission technology; the utility model relates to a technical scheme of fingerprint identification security protection system based on STM32F103 specifically as follows:

the design of the system mainly comprises the following aspects: STM32F103VET6 main control module, power module, sensor module, electronic lock module, wireless transmission module, network communication module and LCD display module respectively with main control module connects.

The STM32F103VET6 main control module is used as a CPU of a main control center, and is an 'enhanced' series of STM 32. Each module transmits data with the STM32F103 main control module through a transmission protocol, and the transmitted data are displayed through an LCD (liquid crystal display) in order to be convenient to view.

The sensor module can monitor the opening and closing of a door and realize the collection of fingerprints through the FPC1011C, and can also be accompanied with the change of gas concentration such as smoke and the like and temperature and humidity according to the fire occurrence process, different fire occurrence states can be judged according to the change characteristics of the data, the NIS-07 is suitable for a smoke alarm sensor for monitoring smoke and various flammable gas concentrations, the collected smoke concentration and carbon monoxide concentration data are used as characteristic parameters for detecting fire, the SHTxx collects the data such as environment temperature and humidity, the data are fused, the fire occurrence condition of the environment is comprehensively judged and detected, and when the fire occurrence state is in a dangerous state, the single chip microcomputer module sends out an alarm function through an acousto-optic system through the threshold value for detecting internal data.

The +3.3V power supply of the power supply module in the STM32F103VET6 single-chip microcomputer main control system of the system is generated by an LM2576 and an L78L33 voltage-stabilizing power supply module, the input end of the LM2576 is connected with a 100uF capacitor, low-frequency interference can be filtered out, a clean power supply is obtained, and the power supply required by the wireless transmission module PT2262/PT2272 and the sensor module is generated by the LM2576 voltage-stabilizing power supply module.

The electronic lock module is an electronic lock consisting of a 4X 3 keyboard and an 8-bit nixie tube, the 4X 3 keyboard consists of 0-9 number keys, a delete key and a confirm key and is used for inputting 4-bit passwords, the nixie tube is used for displaying the input 4-bit passwords, and 4 74LS138 decoders are connected with seven sections of kinescopes and are used for displaying the 4-bit passwords, and when the number of wrong password input times reaches 4 times, the electronic lock delays for 8s and prompts a user to input the passwords again.

The wireless transmission module comprises a whole wireless receiving and transmitting module consisting of a coding chip PT2262, a sending module F05P, a receiving module J04V and a decoding chip PT2272, and is communicated with the microprocessor through a serial port to realize the bidirectional transmission of power connection, instructions, data and control signals, so that the intelligent control of the security system is realized.

The network communication module adopts TC35I of TC35 series, supports transmission of data, voice, short messages and the like, integrates radio frequency and baseband, can be directly connected with the STM32F103 for use, and can be operated at 3.3V or 5V.

The LCD module adopts a 2.8-inch TFTLCD display screen, and an ILI9341 control chip is adopted to drive the TFTLCD display screen because an STM32F103VET6 does not have an LCD controller.

The utility model has the advantages that:

the utility model provides a fingerprint identification security protection system based on STM32F103, the utility model provides a multiple functional can realize intelligent security protection system fast. The equipment solves the problems of low stability and safety of the current security equipment, completes various equipment information acquisition and control systems, facilitates remote control of users and obtains indoor related information, such as important conditions of fire alarm and the like, improves the intellectualization and the safety of the family environment, and helps people to better control the family environment. Aiming at the problem of upgrading later-stage equipment, the upgrading and the transformation of system equipment can be remotely realized without disassembling the equipment. The system is embedded into an LCD display interface to realize dynamic display of the information of the household intelligent equipment without a computer.

Drawings

FIG. 1 is a block diagram of the overall system architecture;

FIG. 2 is a schematic block circuit diagram of a system power supply module;

FIG. 3 is a block diagram of the components of the sensor module;

FIG. 4 is a block diagram of a circuit configuration of an electronic lock module;

Detailed Description

The technical solution of the present invention is further described below with reference to the embodiments, but not limited thereto, and all modifications or equivalent replacements of the technical solution of the present invention may be made without departing from the spirit and scope of the technical solution of the present invention.

Example 1

The utility model provides a fingerprint identification security protection system based on STM32F103, the system architecture composition block diagram of main characterized in that figure 1, it mainly includes STM32 singlechip master control module (1-1), sensor module (3-1): the system comprises a door magnetic sensor (1-2), a temperature and humidity sensor (1-3), a smoke sensor (1-4), an FPC1011C fingerprint sensor (1-11), a network communication module (1-6), an electronic lock module (1-7), a wireless transmission module (1-8), a power supply module (1-9), an LCD display module (1-10) and a client (1-5), wherein the network communication module (1-6), the electronic lock module (1-7), the wireless transmission module, the power supply module (1-8), the LCD display module (1-10) and the client (1-5) are communicated with an external sensor through various protocols, and a power supply; the sensor module carries multiple types of sensor modules according to the home environment, wherein a temperature and humidity sensor (1-3) SHTxx is communicated with an STM32F103 main control template (1-1) through an I/O port. The smoke concentration and carbon monoxide concentration data collected by the smoke sensor (1-4) are used as environmental data for detecting fire, and the singlechip main control module (1-1) sends out an alarm function through an acousto-optic system. The door magnetic sensor (1-2) internally comprises a PT2262 chip which is mainly used for monitoring the opening and closing states of the door. The FPC1011C fingerprint sensor (1-11) generates different capacitance or inductance values near the contact point according to the unevenness of the finger plane, and transmits the different capacitance or inductance values to different registers through an internal bus, and reads an internal memory through an SPI interface. The network communication modules (1-6) adopt TC35I of TC35 series, support the transmission of data, voice and short messages, etc., integrate radio frequency and baseband into a whole, and provide reliable and safe transmission for data, voice, short messages, etc. The wireless transmission module (1-8) adopts a whole wireless transceiving module consisting of a coding chip PT2262, a sending module F05P, a receiving module J04V and a decoding chip PT2272, the F05P is connected with the PT2262 to complete data sending, and the J40V is connected with the PT2272 to complete data transmission. The +3.3V power supply of the power supply module (1-9) of the system STM32F103VET6 single chip microcomputer main control system is generated by an LM2576 and L78L33 voltage-stabilized power supply module, and the power supply required by the wireless transmission module PT2262/PT2272 and the sensor module is generated by an LM2576 voltage-stabilized power supply module. The LCD display modules (1-10) drive a TFTLCD display screen by an ILI9341 control chip to display the acquired information.

Example 2

A schematic block diagram of a power module (1-9) of a fingerprint identification security system based on STM32F103 is shown in FIG. 2, and a microprocessor STM32F103VET6(1-1) serves as a main control center of the system. The voltage of different modules of the system is different, and the STM32 single chip microcomputer is compatible with power supplies in two modes of-3.3V- +3.3V and 0-5V, wherein a network communication module needs a +9V direct current working power supply, and a wireless transmission module PT2262/PT2272 and a sensor module need a +5V direct current working power supply. When a +9V switching power supply is input, the switching power supply can be converted into +5V and +3.3V respectively through a conversion circuit. In the system, a +3.3V power supply of an STM32F103VET6 single-chip microcomputer main control system is generated by an LM2576 and L78L33 voltage-stabilizing power supply module, a 100uF capacitor is connected to the input end of the LM2576, low-frequency interference can be filtered out, a clean power supply is obtained, and power supplies required by a wireless transmission module PT2262/PT2272 and a sensor module are generated by the LM2576 voltage-stabilizing power supply module.

The sensor module is shown in figure (3), a PT2262 chip is arranged in the door magnetic sensor (1-2), and a 4-bit data code and an identification code of the sensor module are integrated for monitoring the opening and closing of a door. The FPC1011C fingerprint sensor (1-11) is a capacitance type fingerprint sensor, a high-speed SPI interface is adopted inside, the CPHA and the CPOL are arranged high or low in level to control the reading state of the corresponding SPI through matching a clock signal SCK and a DSP, and the fingerprint information is acquired. The smoke sensor NIS-07(1-4) is suitable for a smoke alarm sensor for monitoring smoke and the concentration of various inflammable gases, collected smoke concentration and carbon monoxide concentration data are used as characteristic parameters for detecting fire, the temperature and humidity sensor SHTxx (1-3) collects data such as environment temperature and humidity and the like, the data are fused and processed, the fire occurrence condition of the environment is comprehensively judged and detected, and when the fire occurrence condition is in a dangerous state, the single chip microcomputer module sends out an alarm function through an acousto-optic system by detecting the threshold value of internal data.

Example 3

A circuit structure of an electronic lock module (1-7) of a fingerprint identification security system based on STM32F103 is shown in a figure (4), and an electronic lock circuit comprises an input circuit of a keyboard, a password detection and verification circuit, a password modification circuit, an LCD display circuit and the like. In the system, an electronic lock is composed of a 4-by-3 keyboard and an 8-bit nixie tube, the initial password set by the electronic lock is 4-bit number, 4 74LS138 decoders are connected with seven segments of kinescopes and are used for displaying the 4-bit number password, when the input password is the same as the set password, the door is opened through a password verification circuit, if not, the door is locked and passes through a time delay circuit, the password is input again until the password is input correctly, and the door can not be opened.

Claims

1. A fingerprint identification security system based on STM32F103 is characterized by comprising an STM32 singlechip main control module and a sensor module: the household electric appliance control system comprises a door magnetic sensor, a temperature and humidity sensor, a smoke sensor, an FPC1011C fingerprint sensor, a network communication module, an electronic lock module, a wireless transmission module, a power supply module, an LCD display module and a client, wherein a power supply voltage stabilizing module is carried to realize that household 220V mains supply is connected into the equipment so as to stably run; the temperature and humidity sensor is communicated with the STM32F103 main control template through an I/O port; smoke concentration and carbon monoxide concentration data acquired by the smoke sensor are used as environmental data for detecting fire; the door sensor internally comprises a PT2262 chip which is used for monitoring the opening and closing state of the door; the FPC1011C fingerprint sensor generates different capacitance and inductance near the contact point according to the unevenness of the finger plane, and transmits the capacitance and inductance values to the register through an internal bus; the network communication module selects TC35I of TC35 series, supports the transmission of data, voice and short messages, integrates radio frequency and baseband into a whole, and provides reliable and safe transmission for the data, voice and short messages; the wireless transmission module adopts a whole wireless transceiving module consisting of a coding chip PT2262, a sending module F05P, a receiving module J04V and a decoding chip PT2272, wherein F05P is connected with the PT2262 to complete data sending, and J40V is connected with the PT2272 to complete data transmission; the +3.3V power supply of the power supply module in the STM32F103VET6 single-chip microcomputer main control system of the system is generated by an LM2576 and L78L33 voltage-stabilizing power supply module, and the power supply required by the wireless transmission module PT2262/PT2272 and the sensor module is generated by an LM2576 voltage-stabilizing module; the LCD display module uses the ILI9341 control chip to drive the TFTLCD display screen.

2. The STM32F 103-based fingerprint identification security system according to claim 1, wherein a microprocessor STM32F103VET6 is used as a main control center of the system, the voltages of different modules of the system are different, a power supply with two modes of-3.3V- +3.3V and 0-5V is compatible with an STM32 single chip microcomputer, wherein a network communication module needs a +9V direct current working power supply, a 100uF capacitor is connected to the input end of an LM2576, low-frequency interference can be filtered out, a clean power supply is obtained, the power supply needed by a wireless transmission module PT2262/PT2272 and a sensor module is generated by an LM2576 voltage stabilizing module, a PT2262 chip is arranged in a door magnetic sensor, and a 4-bit data code and an identification code of the door are integrated for monitoring the opening and closing of a door; the FPC1011C fingerprint sensor is a capacitive fingerprint sensor, and is used for collecting fingerprint information; the smoke sensor NIS-07 is a smoke alarm sensor used for monitoring the concentration of smoke and various inflammable gases, the collected smoke concentration and carbon monoxide concentration data are used as characteristic parameters for detecting fire, and the temperature and humidity sensor collects environmental temperature and humidity data.

3. The STM32F 103-based fingerprint identification security system according to claim 1, wherein the electronic lock circuit comprises a keyboard input circuit, a password detection and verification circuit, a password modification circuit and an LCD display circuit; in the system, an electronic lock is composed of a 4-by-3 keyboard and an 8-bit nixie tube, the initial password set by the electronic lock is 4-bit numbers, and 4 74LS138 decoders are connected with seven segments of kinescopes and used for displaying the 4-bit number password.