Digital talkback conversion module

Abstract

The utility model aims to provide the digital talkback conversion module which is convenient for upgrading old equipment, and can reduce external interference and improve signal transmission efficiency and quality. The network module comprises an MCU module, a power supply module, a network module and a communication module, the power supply module is in power supply connection with the MCU module, the network module and the communication module, the communication module communicates with the network module through the MCU, the network module is connected with a local area network through a network interface, and the network module is connected with the communication module through a network interface. The power supply module comprises a voltage stabilizing chip and a connecting interface, the voltage stabilizing chip is connected with the connecting interface through a transient suppression diode and a magnetic bead, the communication module is connected with an intercom port of the connecting interface, and the connecting interface is connected with an external power supply and intercom circuit. The utility model is applied to the technical field of talkback equipment.

Description

Technical Field

[0001] The utility model is applied to the technical field of intercom equipment, and particularly relates to a digital intercom conversion module. Background Art

[0002] With the rapid development of Internet information technology and the advent of digital technology, people's lifestyles are constantly innovating and changing, digital requirements are increasing, and huge data resources are being formed, both at home and abroad.

[0003] With the increase of digital resources, competition between countries and enterprises has intensified. Therefore, it is particularly important for elevator companies to obtain voice information more accurately and ensure the healthy operation of elevators. Therefore, elevator manufacturers continue to focus on the integration and analysis of relevant data on elevator operation, such as the current status of intercoms and confirmation of intercom information, which are issues that elevator manufacturers are very concerned about.

[0004] The appearance and functions of traditional elevator intercoms can no longer meet the development needs of modern digital life. The growing strong market demand, coupled with the pain points of upgrading or maintaining traditional elevator intercoms, determine the future market development direction of elevator intercom systems. Traditional elevator intercoms usually transmit signals through analog signals, but since there are high-voltage cables in the elevator shaft in addition to communication cables, the high-voltage cables will interfere with the transmitted signal lines, resulting in unstable signal transmission and intermittent disconnection. In addition, due to the increasing demand for space and transportation, the load of elevators will often increase, so high-power motor drives are also required. High-power motors will also cause greater interference to analog signals when working.

[0005] In order to meet the upgrade and maintenance of previous equipment, improve the intercom quality and stability of old equipment, and make the use of elevator equipment safer and more reliable, it is necessary to provide a digital intercom conversion module that can reduce external interference while improving signal transmission efficiency and quality. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a digital intercom conversion module that is convenient for upgrading old equipment and can reduce external interference and improve signal transmission efficiency and quality.

[0007] The technical solution adopted by the utility model is: the utility model includes an MCU module, a power supply module, a network module and a communication module, the power supply module is connected to the MCU module, the network module and the communication module for power supply, the communication module communicates with the network module through the MCU module, the network module is connected to the local area network through the network interface, the power supply module includes a voltage stabilizing chip and a connection interface, the voltage stabilizing chip is connected to the connection interface through a transient suppression diode and a magnetic bead, the communication module is connected to the intercom port of the connection interface, and the connection interface is connected to an external power supply and an intercom line.

[0008] As can be seen from the above scheme, the analog signal received by the communication module is converted into a digital signal through the MCU module and transmitted through the network module, thereby converting the traditional old intercom equipment into digital signal transmission, reducing the interference of high-power equipment and high-voltage cables in the current building to the signal, thereby ensuring the call quality of the intercom. This makes the old equipment compatible with digital signal communication. At the same time, by setting the transient suppression diode and the magnetic bead, the interference caused by the power supply end is reduced.

[0009] A preferred solution is that the voltage stabilizing chip is a power chip of model BL8032, the VIN port of the voltage stabilizing chip is connected to one end of the magnetic bead, the other end of the magnetic bead is connected to the transient suppression diode, and the transient suppression diode is connected to the power terminal of the connection interface.

[0010] A preferred solution is that the power supply module further includes a plurality of filter capacitors.

[0011] A preferred solution is that the MCU module includes a microprocessor model APM32F103C8T6.

[0012] A preferred solution is that the communication module includes a communication chip of model VD230, the sixth pin and the seventh pin of the communication chip are connected to the communication terminal of the connection interface, and the D1 port and the D2 port of the communication chip are connected to the MCU module.

[0013] A preferred solution is that the network module includes a network chip of model W5500, and the network chip is connected to a network cable for communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a system block diagram of the utility model;

[0015] Figure 2 is a circuit schematic diagram of the MCU module;

[0016] Figure 3is a circuit schematic diagram of the power supply module;

[0017] Figure 4 is a circuit schematic diagram of the communication module;

[0018] Figure 5 is a circuit schematic diagram of the network module. DETAILED DESCRIPTION

[0019] like Figures 1 to 5 As shown, in this embodiment, the utility model includes an MCU module 1, a power supply module 2, a network module 3 and a communication module 4, the power supply module 2 is connected to the MCU module 1, the network module 3 and the communication module 4 for power supply, the communication module 4 communicates with the network module 3 through the MCU module 1, the network module 3 is connected to the local area network through the network interface, the power supply module 2 includes a voltage regulator chip BL1 and a connection interface CN1, the voltage regulator chip BL1 is connected to the connection interface CN1 through a transient suppression diode TVS and a magnetic bead FB, the communication module 4 is connected to the intercom port of the connection interface CN1, and the connection interface CN1 is connected to an external power supply and an intercom line. The data is sorted and transmitted through the MCU module 1, the communication module 4 and the network module 3, which greatly improves the reliability and stability of the intercom call.

[0020] like Figure 3 As shown, the voltage stabilizing chip BL1 is a power chip of model BL8032, the VIN port of the voltage stabilizing chip BL1 is connected to one end of the magnetic bead FB, the other end of the magnetic bead FB is connected to the transient suppression diode TVS, and the transient suppression diode TVS is connected to the power terminal of the connection interface CN1. The power supply module 2 also includes a number of filter capacitors for reducing noise. Through the transient suppression diode TVS, when an instantaneous high-energy impact is input, it can change the high impedance between its two poles into low impedance at a very high speed, absorb up to several kilowatts of surge power, make the voltage between the two poles at a predetermined value, and effectively protect the precision components in the subsequent electronic circuit from damage by various surge pulses. The magnetic bead FB suppresses high-frequency noise and spike interference on the signal line and power line, and absorbs electrostatic pulses.

[0021] like Figure 2 As shown, the MCU module 1 includes a microprocessor U1 of model APM32F103C8T6. The analog signal of the intercom enters the microprocessor U1 through the communication module 4, and then the microprocessor U1 processes the signal.

[0022] like Figure 4As shown, the communication module 4 includes a communication chip U3 of model VD230, the sixth pin and the seventh pin of the communication chip U3 are connected to the communication terminal of the connection interface CN1, and the D1 port and the D2 port of the communication chip U3 are connected to the MCU module 1.

[0023] like Figure 5 As shown, the network module 3 includes a network chip U4 of model W5500, and the network chip U4 is connected to a network cable for communication.

[0024] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A digital intercom conversion module, comprising an MCU module (1), characterized in that: It also comprises a power supply module (2), a network module (3) and a communication module (4); the power supply module (2) is connected to the MCU module (1), the network module (3) and the communication module (4) for power supply; the communication module (4) communicates with the network module (3) via the MCU module (1); the network module (3) is connected to a local area network via a network interface; the power supply module (2) comprises a voltage stabilizing chip (BL1) and a connection interface (CN1); the voltage stabilizing chip (BL1) is connected to the connection interface (CN1) via a transient voltage suppressor diode (TVS) and a magnetic bead (FB); the communication module (4) is connected to an intercom port of the connection interface (CN1); and the connection interface (CN1) is connected to an external power supply and an intercom line.

2. A digital intercom conversion module according to claim 1, characterized in that: The voltage stabilizing chip (BL1) is a power chip of model BL8032, a VIN port of the voltage stabilizing chip (BL1) is connected to one end of the magnetic bead (FB), the other end of the magnetic bead (FB) is connected to the transient voltage suppressor diode (TVS), and the transient voltage suppressor diode (TVS) is connected to a power terminal of the connection interface (CN1).

3. A digital intercom conversion module according to claim 1, characterized in that: The power supply module (2) also includes a plurality of filter capacitors.

4. A digital intercom conversion module according to claim 1, characterized in that: The MCU module (1) comprises a microprocessor (U1) of model APM32F103C8T6.

5. A digital intercom conversion module according to claim 1, characterized in that: The communication module (4) comprises a communication chip (U3) of model VD230, the sixth pin and the seventh pin of the communication chip (U3) are connected to the communication terminal of the connection interface (CN1), and the D1 port and the D2 port of the communication chip (U3) are connected to the MCU module (1).

6. A digital intercom conversion module according to claim 1, characterized in that: The network module (3) comprises a network chip (U4) of model W5500, and the network chip (U4) is connected to a network cable for communication.

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