Door opening control device in building talkback entrance machine and building talkback entrance machine

Abstract

The utility model discloses a door opening control device in a building talkback entrance machine and the building talkback entrance machine, and relates to the technical field of building talkback entrance machines. The device comprises a CPU (Central Processing Unit); the CPU power supply module is respectively connected with a main power supply and the CPU and is used for supplying power to the CPU; the MCU module is connected with the CPU and an inner door opening circuit; the first voltage reduction module is connected with the main power supply and converts output of the main power supply into direct current with specified voltage; the charging and discharging management module is connected with the first voltage reduction module and the battery; the input end of the second step-down module is connected with the charging and discharging management module, and the output end of the second step-down module is connected with the MCU module and used for supplying power to the MCU module. According to the internal door opening control device of the building talkback entrance machine and the building talkback entrance machine, the MCU module is additionally arranged to be connected with the internal door opening circuit and the CPU to execute unlocking operation, it is guaranteed that the MCU module is normally supplied with power in a standby mode, and it is guaranteed that the internal door opening function is available at any time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a building intercom door station technical field, especially a building intercom door station inner door opening control device and building intercom door station. BACKGROUND

[0002] The door station is one of the more important equipment in the building intercom system, which is responsible for identity recognition, calling function, remote monitoring and door opening function. Among them, the door opening function is one of the most commonly used functions, and the door opening is divided into outside door opening and inside door opening. The outside door opening can be authorized by property or owner, etc. The inside door opening is mostly opened by the inside door opening key on the corridor wall, and the inside door opening key signal is connected to the door station. The door station receives the inside door opening signal and then outputs the door opening signal.

[0003] Most of the common door stations on the market are installed with Android system or Linux system, and the above signals are connected by CPU. When the door station appears dead, restarts or remotely upgrades, the inside door opening is almost invalid, and it needs to be controlled after the system starts. At this time, if there is a danger, it cannot be opened in the first time, which exists a security risk. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem, and provides a building intercom door station inner door opening control device and building intercom door station. By increasing an MCU module to connect the inside door opening circuit and CPU and execute the unlocking function, the standby power supply of the MCU module is ensured, and the inside door opening function is available at any time.

[0005] In the first aspect, the utility model provides a building intercom door station inner door opening control device, which comprises:

[0006] CPU;

[0007] The CPU power module is connected with the total power supply and the CPU respectively to supply power for the CPU;

[0008] The MCU module is connected with the CPU and the inside door opening circuit, and is used for executing the unlocking operation;

[0009] The first voltage reduction module is connected with the total power supply to convert the output of the total power supply into direct current of specified voltage;

[0010] The charge and discharge management module is connected with the first voltage reduction module and the battery;

[0011] The second voltage reduction module is connected with the charge and discharge management module at the input end and connected with the MCU module at the output end, and is used for supplying power for the MCU module.

[0012] Further, it further comprises an RTC module connected with the MCU module.

[0013] Further, the CPU power module is further connected with the MCU module, and receives a power control signal of the MCU module.

[0014] Further, the CPU and the MCU adopt I2C to interact with each other.

[0015] Further, the MCU module is of a model SC95F8523X28U.

[0016] Further, the charge-discharge management module is of a model AW32001E.

[0017] Further, the first voltage reduction module is of a model SM8102ABC.

[0018] Further, the second voltage reduction module is of a model SY8089.

[0019] In the second aspect, the utility model provides a kind of building intercom door phone, including building intercom door phone body and the building intercom door phone inside door control device of first aspect described.

[0020] The utility model has the advantages that: by built-in MCU module executes lock operation, and inside door circuit and lock circuit are all connected with MCU module, and standby normal power supply of MCU module is guaranteed by first voltage reduction module, charge-discharge management module, battery and second voltage reduction module, so that inside door function is available at any time, so that when building intercom master CPU system restarts, dies, remote upgrade, relevant function is controlled by MCU module, and inside door function is not worried about failure;When building intercom power supply is abnormal, inside door function is not worried about failure;So as to guarantee that inside door function is available at any time, improve the stability and security of building intercom. DRAWINGS

[0021] The utility model will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 It is the structural schematic diagram of the device of the embodiment of the utility model. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be clearly and completely described below by combining with the drawings and specific embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a specific orientation, with a specific orientation structure and operation, therefore, it cannot be understood as the limitation of the utility model.

[0025] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "connection", "connect" should be broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements.For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the invention.

[0026] The technical scheme in the embodiment of the application is as follows:

[0027] Built-in MCU module, the inner opening door circuit and the unlocking circuit are connected to the MCU module for control, because the MCU small system has high stability, almost no upgrade is needed, even if the fault restart time is very short.Meanwhile, the MCU module is powered by the charge-discharge management module and the battery, which ensures that the inner opening door function can still be used normally during the total power supply anomaly, thereby solving the problem of invalid inner opening door during system crash, restart and remote upgrade.

[0028] Please refer to Figure 1 As shown in the drawing, the utility model provides an inner opening door control device of building intercom door phone in the embodiment, which comprises:

[0029] CPU;

[0030] CPU power module, connected with total power supply and CPU respectively, for CPU power supply;CPU and CPU power module are both component modules of building intercom door phone in the prior art.

[0031] MCU module, connected with CPU and inner opening door circuit (when inner opening door button is triggered, inner opening door circuit generates inner opening door signal), for executing unlocking operation (sending unlocking signal to unlocking circuit);Low power MCU with model SC95F8523X28U can be used.

[0032] The first step-down module is connected to the main power supply and converts the output of the main power supply (usually 12V, 15V or 24V DC) into DC power of a specified voltage (determined according to the safe input voltage of the charge and discharge management module, such as 5V); a step-down IC of model SM8102ABC can be used.

[0033] The charge / discharge management module is connected to the first step-down module and the battery. The charge / discharge management module can use an AW32001E charge / discharge IC, and the battery can be a lithium battery. When the first step-down module has voltage output, the charge / discharge management module converts the output of the first step-down module into the input of the second step-down module and the battery; when the first step-down module has no voltage output, the charge / discharge management module converts the battery into the input of the second step-down module.

[0034] The second step-down module has its input connected to the charge / discharge management module and its output connected to the MCU module. It is used to power the MCU module and convert the voltage output by the charge / discharge management module (which is generally still higher than the operating voltage of the MCU module) into the operating voltage of the MCU module. A step-down IC of model SY8089 can be used.

[0035] Preferably, it may also include an RTC module (e.g., an RTC module of model PCF8563), which is connected to the MCU module and communicates with the MCU module via I2C. When the total power supply voltage is abnormal, the unlocking information is recorded by the RTC module, and then when the total power supply voltage is normal, the unlocking information is sent back to the CPU, ensuring that the unlocking time is recorded accurately.

[0036] Preferably, the CPU power module is also connected to the MCU module and receives power control signals from the MCU module. When the MCU module detects an abnormal CPU timeout or an ineffective reset, it can control the CPU power module to restart.

[0037] Preferably, the CPU and MCU use I2C for signal and data exchange. The MCU can send the door opening data back to the CPU via I2C. When there is a need for remote door opening, the CPU can inform the MCU via I2C. Using I2C can balance versatility and transmission efficiency.

[0038] The working principle of this utility model is as follows:

[0039] The built-in MCU module is connected with the CPU and the inner door opening circuit, and is used for executing the unlocking operation. When the inner door opening button is pressed, the inner door opening circuit generates an inner door opening signal, and the MCU module executes the unlocking operation after receiving the signal, and then returns the unlocking information to the CPU. When the CPU passes the verification, a remote door opening signal is also generated and sent to the MCU module, so that the unlocking operation can be executed. Since the MCU small system has high stability, the restart time is very short even if a fault occurs. Meanwhile, the first voltage reduction module, the charge and discharge management module, the battery and the second voltage reduction module ensure that the MCU module is standby and always powered, so that when the total power supply of the door machine is abnormal and the lock power supply is normal, the battery starts to supply power to the MCU, ensuring that the inner door opening function is normal. The MCU adopts standby and always powered mode, and only when the total power supply and the battery are removed, the MCU can stop working.

[0040] In another aspect, the utility model also provides a building intercom door machine, including building intercom door machine body and building intercom door machine inner door opening control device.

[0041] The utility model executes the unlocking operation through the built-in MCU module, connects the inner door opening circuit and the unlocking circuit into the MCU module, guarantees that the MCU module is standby and always powered, and guarantees that the inner door opening function is available at any time, so that when the door machine main control CPU system restarts, dies, or is remotely upgraded, the relevant function is controlled by the MCU module, and the inner door opening function does not need to worry about failure. When the power supply of the door machine is abnormal, the inner door opening function also does not need to worry about failure.

[0042] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that the specific examples described by us are only illustrative, and are not used to limit the scope of the utility model, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the utility model should be covered in the scope of protection of the claims of the utility model.

Claims

1. A door opening control device inside a building intercom door station, characterized in that, The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device.

2. The apparatus of claim 1, wherein: The application relates to an intercom doorphone inner opening door control device.

3. The apparatus of claim 1, wherein: The application relates to an intercom doorphone inner opening door control device.

4. The apparatus of claim 1, wherein: The application relates to an intercom doorphone inner opening door control device.

5. The apparatus of claim 1, wherein: The application relates to an intercom doorphone inner opening door control device.

6. The apparatus of claim 1, wherein: The application relates to an intercom doorphone inner opening door control device.

7. The apparatus of claim 1, wherein: The application relates to an intercom doorphone inner opening door control device.

8. The apparatus of claim 1, wherein: The application relates to an intercom doorphone inner opening door control device.

9. A door station for a building intercom, characterized by The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control device. The application relates to an intercom doorphone inner opening door control

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