Digital transmission-based duty room management machine

Abstract

The utility model aims to provide a duty room management machine based on digital transmission. The digital-to-analog interphone comprises a control module, a digital-to-analog module, a communication module and a display module, the control module is in communication connection with an external upper computer, the digital-to-analog module, the communication module and the display module are all connected with the control module, the digital-to-analog module is connected with an external interphone through a handle, an SIM card is inserted into the communication module through an SIM card interface, and the display module is connected with the control module. The display module is connected with a touch screen and an internet access, and the internet access is connected with an external camera; the communication module sends data of an external gateway device to the control module, the control module transmits the data to the digital-to-analog module, the digital-to-analog module converts the data into analog audio and outputs the analog audio, when the analog audio is sent to the digital-to-analog module, the digital-to-analog module converts the analog audio into a digital signal, and the control module sends the digital signal to the external device through the communication module. The wireless talkback device is applied to the technical field of wireless talkback.

Description

Technical Field

[0001] The utility model is applied to the technical field of wireless intercom, and particularly relates to a duty room management machine based on digital transmission. Background Art

[0002] With the rapid development of science and technology, both domestically and internationally, people's lifestyles are constantly innovating and changing. Wireless technology is being widely adopted, generating a vast data resource. Wireless technology is also impacting elevator intercoms, significantly reducing wiring requirements and enabling communication between the duty room and the machine room without the need for wiring. Traditional wireless intercom technology uses frequency modulation, but from a stability perspective, it no longer meets intercom needs. The growing market demand, coupled with the pain points of wireless intercom upgrades and maintenance, is shaping the future market development direction of elevator intercom systems. This demand-driven trend is creating business opportunities, prompting major companies to invest in this market.

[0003] Most existing wireless intercom duty equipment uses radio frequency (RF) technology, establishing an intercom connection between the duty room and the computer room. Typically, a wireless intercom conversion module is connected to the duty room, converting the analog voice signal into an electrical signal. At this point, the electrical signal is very weak and requires amplification to increase its power. Certain parameters of the electrical signal are then correlated with another signal. The modulated electrical signal is then fed into an RF transmitter and transmitted through an antenna. The antenna converts the electrical signal into radio waves, which are then transmitted into the air. The computer room also has an intercom conversion module whose antenna receives the radio waves and converts them into electrical signals. The intercom conversion module extracts the modulated signal from the electrical signal and converts it back into a voice signal.

[0004] Currently, interference from high-power motors, high-voltage cables, and other sources within elevators is increasing, causing interference to analog signals and deteriorating sound quality. Existing duty room management systems use wireless intercoms, but often fail to connect to the intercom in the machine room. Frequency modulation (FM) is susceptible to interference, affected by weather, the environment, and other factors. Existing wireless intercoms have shortcomings such as limited distance, poor call quality, and difficulty in backend management and data detection. Therefore, it is necessary to provide a duty room management system based on digital transmission, which offers the advantages of simple circuitry, low power consumption, long life, flexible installation, ease of use, good call quality, an LCD display, no distance restrictions, and improved reliability and stability of intercom calls. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide a duty room management machine based on digital transmission, which has the advantages of simple circuit, low power consumption, long life, flexible installation, easy use, good call quality, with a liquid crystal display, no distance restriction, and the ability to improve the reliability and stability of intercom calls.

[0006] The technical solution adopted by the present invention is: the present invention includes a control module, a digital-to-analog module, a communication module and a display module, the control module is communicatively connected to an external host computer, the digital-to-analog module, the communication module and the display module are all connected to the control module, the digital-to-analog module is connected to an external intercom via a handle, the communication module is inserted with a SIM card via a SIM card interface, the display module is connected with a touch screen and a network port, and the network port is connected to an external camera; the communication module sends data from an external gateway device to the control module, the control module transmits the data to the digital-to-analog module, the digital-to-analog module converts it into analog audio output, when the analog audio is sent to the digital-to-analog module, the digital-to-analog module converts the analog audio into a digital signal, and the control module sends the digital signal to the external device via the communication module.

[0007] From the above, it can be seen that the present application organizes and transmits data through the control module, communication module, and digital-to-analog module, which greatly improves the reliability and stability of intercom calls; the circuit is simple, and fewer components are required, which can reduce costs, greatly improve production efficiency, and increase market competitiveness. It is managed through the backend website and applet, and has the advantages of low power consumption, long life, flexible installation, easy use, no distance restrictions, basically ignoring weather and environmental factors, and good call quality. Through the hands-free and the handle, users can choose the call method according to actual needs and switch freely. The 7-inch touch screen and LCD screen can better display the operation screen, facilitate binding the gateway, setting numbers and addresses, and give users a better operating experience. At the same time, it can store records better than other devices, can store more call records, address books, and the incoming call page more clearly displays the other party's address and incoming call number, allowing users to more accurately determine the location of the person seeking help.

[0008] A preferred solution is that the LCD_TX pin and LCD_RX pin of the display module are connected to the corresponding pins of the control module, and the TX_P pin, TX_N pin, RX_P pin, and RX_N pin of the network port are all connected to the corresponding pins of the display module.

[0009] A preferred solution is that the RX pin and the TX pin of the control module are both connected to the corresponding pins of the digital-to-analog module.

[0010] A preferred solution is that the MCU_TXD pin and the MCU_RXD pin of the control module are connected to the GSM_TXD pin and the GSM_RXD pin of the communication module, and the A_MICIN pin of the digital-to-analog module is connected to the pin corresponding to the handle.

[0011] A preferred solution is that the duty room management machine based on digital transmission also includes a power module, and the external input power is connected to the power module through the power interface, and the power module is connected to the digital-to-analog module, the communication module, the control module and the display module.

[0012] A preferred solution is that the duty room management machine based on digital transmission also includes a loudspeaker, the control module and the digital-to-analog module are both connected to the loudspeaker, and the digital-to-analog module is connected to an external intercom via the loudspeaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 is a circuit schematic diagram of the control module;

[0015] Figure 3 is a circuit schematic diagram of the display module and the network port;

[0016] Figure 4 is a circuit schematic diagram of the power module;

[0017] Figure 5 is a circuit schematic diagram of the digital-to-analog module;

[0018] Figure 6 It is a circuit schematic diagram of the communication module. DETAILED DESCRIPTION

[0019] like Figure 1 As shown, in this embodiment, the utility model includes a control module 1, a digital-to-analog module 2, a communication module 3 and a display module 4. The control module 1 is communicatively connected to an external host computer, the digital-to-analog module 2, the communication module 3 and the display module 4 are all connected to the control module 1, the digital-to-analog module 2 is connected to an external intercom via a handle 5, the communication module 3 is equipped with a SIM card via a SIM card interface 6, the display module 4 is connected to a touch screen 7 and a network port 8, and the network port 8 is connected to an external camera; the communication module 3 sends data from an external gateway device to the control module 1, the control module 1 transmits the data to the digital-to-analog module 2, the digital-to-analog module 2 converts it into analog audio output, and when the analog audio is sent to the digital-to-analog module 2, the digital-to-analog module 2 converts the analog audio into a digital signal, and the control module 1 sends the digital signal to an external device via the communication module 3.

[0020] The digital-to-analog module 2 collects the sound of the external intercom through the handle 5. After the collection is completed, the sound is converted into playable digital audio through the internal algorithm, and then the converted audio data is sent to the control module 1 through the serial port. After receiving the audio data, the control module 1 is connected to the network through the communication module 3 and sends the audio data to the external specified device. The communication module 3 uses the network to transmit data through the SIM card. When the control module 1 sends data to the communication module 3, the communication module 3 transmits the data to the cloud. Similarly, data is also transmitted to the control module 1 through the communication module 3.

[0021] The display module 4 is connected to an external LCD touch screen, allowing users to bind the gateway, set the number and address, and more clearly display the incoming call number and call log. It exchanges data with the control module 1 to perform binding and call processing. The network port 8 is used for network data transmission. Data from the display module 4 is connected to other devices, including cameras, computers, and other devices through the network port 8.

[0022] like Figure 2 and Figure 3 As shown, in this embodiment, the LCD_TX and LCD_RX pins of the display module 4 are connected to the corresponding pins of the control module 1, and the TX_P, TX_N, RX_P, and RX_N pins of the network port 8 are all connected to the corresponding pins of the display module 4. The model of the control module 1 is APM32E103RCT6, and the display module 4 has functions such as displaying numbers and some simple menus. The control module 1 controls the display module 4 to display content, display caller ID, bind and unbind devices, and edit addresses, etc., perfectly solving the pain points of existing wireless intercoms.

[0023] like Figure 2 and Figure 5 As shown, in this embodiment, the RX pin and the TX pin of the control module 1 are both connected to the corresponding pins of the digital-to-analog module 2. The model of the digital-to-analog module 2 is D01s.

[0024] like Figure 2 and Figure 6 As shown, in this embodiment, the MCU_TXD and MCU_RXD pins of the control module 1 are connected to the GSM_TXD and GSM_RXD pins of the communication module 3, respectively. The A_MICIN pin of the digital-to-analog converter module 2 is connected to the corresponding pins of the handle 5. The communication module 3 is an EC800 model and uses a SIM card to transmit data over the network. When the control module 1 sends data to the communication module 3, the communication module 3 transmits the data to the cloud. Similarly, the data is also transmitted to the control module 1 through the communication module 3.

[0025] like Figures 2 to 6 As shown, in this embodiment, the duty room management machine based on digital transmission also includes a power module 9, and the external input power is connected to the power module 9 through the power interface 10. The power module 9 is connected to the digital-to-analog module 2, the communication module 3, the control module 1 and the display module 4.

[0026] The power is processed by a voltage-stabilizing chip and then passes through a common-mode inductor. This inductor suppresses high-frequency noise and spikes on the signal and power lines and also absorbs static electricity. The output of the voltage-stabilizing circuit passes through a capacitor, which acts as a filter, effectively removing high-frequency signals. The circuit is connected to a transient suppression diode. When a high-energy surge is input, it rapidly reduces the high impedance between its two terminals to a low impedance, absorbing surge power of up to several kilowatts and clamping the voltage between the two terminals to a predetermined value, effectively protecting the delicate components in the subsequent electronic circuitry from damage caused by various surge pulses.

[0027] like Figure 1 As shown, in this embodiment, the duty room management machine based on digital transmission also includes a loudspeaker 11, and the control module 1 and the digital-to-analog module 2 are both connected to the loudspeaker 11. When the communication module 3 receives data, it sends it to the control module 1. After receiving the data, the control module 1 analyzes it as a call signal and transmits the data to the digital-to-analog module 2. At the same time, according to specific actual needs, the control module controls the voice output of the handle 5 or the loudspeaker 11.

Claims

1. A duty room management machine based on digital transmission, characterized by: It comprises a control module (1), a digital-to-analog module (2), a communication module (3) and a display module (4), wherein the control module (1) is connected to an external host computer for communication, the digital-to-analog module (2), the communication module (3) and the display module (4) are all connected to the control module (1), the digital-to-analog module (2) is connected to an external intercom via a handle (5), the communication module (3) is inserted with a SIM card via a SIM card interface (6), the display module (4) is connected to a touch screen (7) and an internet port (8), and the internet port (8) is connected to an external camera; the communication module (3) sends data from an external gateway device to the control module (1), the control module (1) transmits the data to the digital-to-analog module (2), the digital-to-analog module (2) converts the data into analog audio output, and when the analog audio is sent to the digital-to-analog module (2), the digital-to-analog module (2) converts the analog audio into a digital signal, and the control module (1) sends the digital signal to the external device via the communication module (3).

2. The duty room management machine based on digital transmission according to claim 1, characterized in that: The LCD_TX pin and LCD_RX pin of the display module (4) are connected to the corresponding pins of the control module (1), and the TX_P pin, TX_N pin, RX_P pin, and RX_N pin of the network port (8) are all connected to the corresponding pins of the display module (4).

3. The duty room management machine based on digital transmission according to claim 1, characterized in that: The RX pin and the TX pin of the control module (1) are both connected to corresponding pins of the digital-to-analog module (2).

4. The duty room management machine based on digital transmission according to claim 1, characterized in that: The MCU_TXD pin and the MCU_RXD pin of the control module (1) are connected to the GSM_TXD pin and the GSM_RXD pin of the communication module (3), and the A_MICIN pin of the digital-to-analog module (2) is connected to the corresponding pin of the handle (5).

5. The duty room management machine based on digital transmission according to claim 1, characterized in that: The duty room management machine based on digital transmission further comprises a power module (9), an external input power source is connected to the power module (9) via a power interface (10), and the power module (9) is connected to the digital-to-analog module (2), the communication module (3), the control module (1) and the display module (4).

6. The duty room management machine based on digital transmission according to claim 1, characterized in that: The duty room management machine based on digital transmission further comprises a loudspeaker (11), the control module (1) and the digital-to-analog module (2) are both connected to the loudspeaker (11), and the digital-to-analog module (2) is connected to an external intercom via the loudspeaker (11).

Images