CN207337577U

CN207337577U - A kind of SCM Based intelligent doorbell system

Info

Publication number: CN207337577U
Application number: CN201721472104.8U
Authority: CN
Inventors: 肖敏; 梁静; 胡骞
Original assignee: China Three Gorges University CTGU
Current assignee: China Three Gorges University CTGU
Priority date: 2017-11-07
Filing date: 2017-11-07
Publication date: 2018-05-08
Anticipated expiration: 2027-11-07

Abstract

A kind of SCM Based intelligent doorbell system, including primary module and slave module, primary module and slave module wireless connection, the primary module includes MCU, the MCU is connected with key-press module, charactron, the first buzzer and the second buzzer, the MCU is also connected with electronic lock, and the MCU uses STC89C51 microcontrollers；The slave module includes multiple door bell and button systems, and the primary module is arranged at unit building gate inhibition, and the door bell and button system is arranged in man of resident family.The utility model provides a kind of SCM Based intelligent doorbell system, and principal and subordinate's module is by being wirelessly transferred carry out data exchange, and easy to operate to understand, the required equipment of hardware design is few, and feasibility is strong, and extending space is big；The doorbell password of each resident family is independent, is not in the puzzlement arbitrarily disorderly called, and password distinguishes resident family and visitor with doorbell password, and number and doorbell password are man-to-man relations, avoid disorderly by bothering, anti-theft feature enhancing, security greatly improves.

Description

A kind of SCM Based intelligent doorbell system

Technical field

Electronic technology field is the utility model is related to, particularly a kind of SCM Based intelligent doorbell system.

Background technology

The birth of smart home, it is huge convenient to be provided for daily life, is previously required to the work being accomplished manually Make nowadays to be completed to combine by equipment such as some microcontrollers, sensors, save a large amount of human resources.Wherein, intelligent door Bell is exactly one of which research.Most start, people can only be knocked at the door with hand produces sound to remind owner come guest.With electricity Invention, battery doorbell occur, and embedded battery powered buzzer, visitor only need to gently press lower button inside door.With section The progress of technology, the battery doorbell of simple function, can not meet the needs of people, and intelligent doorbell comes into being.

Safety is the key problem of all door bell and button systems.Present house is to concentrate mostly, with cell, unit integral tube Reason, doorbell is being not to lead directly to resident family, but can just be listened to by multilayer doorbell by resident family.There is voice in modern doorbell Doorbell, video doorbell etc..For voice doorbell, there are following defect：Visitor, to resident family, is carried out voice communication and come by dialing Judge visitor, but paving line wiring is cumbersome, and fragile, maintenance cost is higher.Pressed by mistake there is a situation where doorbell and miss sound, Resident family is made to perplex.There is also some defects for video doorbell：The resident family of whole unit is not suitable for it, unit resident family is more and shared same The camera of one access control system primary module, can so cause the leakage of privacy, and security is relatively low；When the main mould of access control system The camera damage of block, whole system is in paralyzed state, brings security risk.Similar product on the market mostly can only now When accomplishing that visitor comes to visit, remind resident family to open the door to visitor by ringing a doorbell, do not account for the situation when owner stays out；Visit Visitor dials the situation that doorbell causes doorbell to miss sound there is also this by mistake.Therefore, it is a householder to be facilitated to use, for resident family and visitor Two kinds of different users, have the generation of the door bell and button system of different working modes extremely urgent.

The content of the invention

Technical problem to be solved in the utility model is to provide a kind of SCM Based intelligent doorbell system, Neng Gouyou Effect distinguishes resident family and visitor, improves the security that resident family uses.

In order to solve the above technical problems, technical solution is used by the utility model：A kind of SCM Based intelligence Door bell and button system, it is characterised in that：Including primary module and slave module, primary module and slave module wireless connection, the primary module include MCU, the MCU are connected with key-press module, charactron, the first buzzer and the second buzzer, and the MCU also connects with electronic lock Connect, the MCU uses STC89C51 microcontrollers；The slave module includes multiple door bell and button systems, and the primary module is arranged on unit building At gate inhibition, the door bell and button system is arranged in man of resident family.

Preferably, the door bell and button system includes microcontroller, and microcontroller is connected with the 3rd buzzer and the 4th buzzer, The MCU is connected with the first wireless communication module, and microcontroller is connected with the second wireless communication module, first wireless communication Module and the second wireless communication module wireless connection.

Preferably, the key-press module uses 4*4 matrix keyboards.

Preferably, the charactron is equipped with 4.

Preferably, first wireless communication module and the second wireless communication module use NRF24L01 wireless modules.

Preferably, the microcontroller uses AT89C52 microcontrollers.

The doorbell password of each resident family is independent in the utility model, and number and doorbell password are man-to-man passes System, is not in the puzzlement arbitrarily disorderly called, guesses doorbell password with idea of leaving things to chance prevented also from thief.Password and doorbell password The identity of resident family and visitor are distinguished.1）The design door bell and button system is divided into both of which, and outer layer doorbell is primary module, if firmly Family can directly input password and can enter, and correct number and doorbell password must be inputted if visitor；2）Primary module passes through NRF24L01 radios to the slave module in man of resident family, carries out password match, and doorbell sends sound notice if successful match There is guest's arrival in resident family, opens the door for visitor, and security has great guarantee；3）The equipment needed is less, and 51 microcontrollers are more general Low all over cost, NRF24L01 wireless modules are easy to use, and removing VCC and GND only needs 5 I/O mouthfuls and a middle fracture Realize wireless communication, it is easy to use, easily expand.

The utility model provides a kind of SCM Based intelligent doorbell system, and principal and subordinate's module is by being wirelessly transferred into line number According to exchange, easy to operate to understand, the required equipment of hardware design is few, and feasibility is strong, and extending space is big；The doorbell of each resident family Password is independent, is not in the puzzlement arbitrarily disorderly called, password distinguishes resident family and visitor with doorbell password, and door The trade mark and doorbell password are man-to-man relations, are avoided disorderly by bothering, anti-theft feature enhancing, security greatly improves.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples：

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is the structure diagram of the utility model door bell and button system；

Fig. 3 is the circuit diagram of the utility model primary module；

Fig. 4 is the circuit diagram of the utility model key-press module；

Fig. 5 is the circuit diagram of the utility model door bell and button system.

Embodiment

A kind of as shown in Figure 1, SCM Based intelligent doorbell system, it is characterised in that：Including primary module and slave module, Primary module and slave module wireless connection, the primary module include MCU, the MCU and key-press module, charactron, the first buzzer And the second buzzer connection, the MCU is also connected with electronic lock, and the MCU uses STC89C51 microcontrollers；The slave module Including multiple door bell and button systems, the primary module is arranged at unit building gate inhibition, and the door bell and button system is arranged in man of resident family.Primary module is real Existing is cipher mode, receives user's input, displays it, and transfer out.

Preferably, as shown in Fig. 2, the door bell and button system includes microcontroller, microcontroller and the 3rd buzzer and the 4th Buzzer connects, and the MCU is connected with the first wireless communication module, and microcontroller is connected with the second wireless communication module, described First wireless communication module and the second wireless communication module wireless connection.

Preferably, the key-press module uses 4*4 matrix keyboards.Matrix keyboard is using rank scanning principle, 4 rows 4 Row, with behavior base to determine whether level change occurs, when level changes, into ranks surface sweeping, with moving to left or Move to right to find out the row number of level change, line number and row number are combined into a numerical value to represent the uniqueness of button, finally will The value of button is converted into the content being intended by.

Preferably, the charactron is equipped with 4.

Preferably, the microcontroller uses AT89C52 microcontrollers.

As shown in figure 3,51 microcontrollers can use I/O mouthfuls 32 altogether, NRF24L01 wireless modules take 6, P3^2-P3^ 7, charactron takes 12 I/O mouthfuls, P0^0-P0^7, P2^0-P2^3, and matrix keyboard takes 8 I/O mouthfuls, P1^0-P1^7.Buzzing Device takes 2 I/O mouthfuls, P2^4-P2^5.

As shown in figure 4, being matrix form by key arrangement, when button is not pressed, the level of all of the port is all height Level.What it is when line input is low level, once a button is pressed, input line will be pulled low, so that by monolithic machine testing Arrive.By the way of scan round, just may know that it is which button by the level of read input line.

As shown in figure 5, NRF24L01 takes 6 I/O, P3^2-P3^7, buzzer takes two I/O mouthfuls, P0^1-P0^2.

The input through keyboard of primary module has both of which：First, directly inputting cipher mode, for resident family, microcontroller will Received data are matched with gate inhibition's password, if it succeeds, simulation is opened the door, the first buzzer is rung, conversely, the second buzzer Ring；Second, switching keyboard input pattern --- lock keys, easy to distinguish resident family and visitor, input want the number of call door bell with Doorbell password.Number and doorbell password are transmitted to by slave module by wireless module, wait the feedback of slave module.When receiving main mould During the data that block is sent, received data are matched with the character string of inner setting, if successful match, the 3rd buzzing Device analog gate tintinnabulation, notice resident family opens the door to visitor；When the number received is correct, during doorbell password mistake, the 4th bee The device that rings is rung.

The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model System, the technical solution that the scope of protection of the utility model should be recorded with claim, including the technical solution that claim is recorded The equivalents of middle technical characteristic are protection domain.Equivalent substitution i.e. within this range is improved, also in the utility model Protection domain within.

Claims

A kind of 1. SCM Based intelligent doorbell system, it is characterised in that：Including primary module and slave module, primary module with from mould Block wireless connection, the primary module include MCU, the MCU and key-press module, charactron, the first buzzer and the second buzzer Connection, the MCU are also connected with electronic lock, and the MCU uses STC89C51 microcontrollers；The slave module includes multiple doorbells System, the primary module are arranged at unit building gate inhibition, and the door bell and button system is arranged in man of resident family.
A kind of 2. SCM Based intelligent doorbell system according to claim 1, it is characterised in that：The door bell and button system bag Microcontroller is included, microcontroller is connected with the 3rd buzzer and the 4th buzzer, and the MCU and the first wireless communication module connect Connect, microcontroller is connected with the second wireless communication module, and first wireless communication module and the second wireless communication module are wireless Connection.
A kind of 3. SCM Based intelligent doorbell system according to claim 1, it is characterised in that：The key-press module is adopted With 4*4 matrix keyboards.
A kind of 4. SCM Based intelligent doorbell system according to claim 1, it is characterised in that：The charactron is equipped with 4.
A kind of 5. SCM Based intelligent doorbell system according to claim 2, it is characterised in that：First channel radio Letter module uses NRF24L01 wireless modules with the second wireless communication module.
A kind of 6. SCM Based intelligent doorbell system according to claim 2, it is characterised in that：The microcontroller is adopted With AT89C52 microcontrollers.