Intercommunication device

Abstract

The utility model aims to provide a talkback device which is long in transmission distance, strong in anti-interference capability, capable of realizing bidirectional conversation only by adding address information, and strong in expansibility. The system comprises a duty room device, a transfer device, a machine room device, a car roof device, a car device and a pit device, the machine room device, the car roof device, the car device and the pit device are all connected to the transfer device through a bus, and the duty room device is connected with the transfer device. The car roof equipment, the car equipment and the pit equipment respectively transmit corresponding calling signals and state signals to the machine room equipment, and the machine room equipment transmits information to the duty room equipment through the transfer equipment. The utility model is applied to the technical field of digital intercom systems.

Description

Technical Field

[0001] The utility model is applied to the technical field of digital intercom systems, and particularly relates to an intercom device. Background Art

[0002] With the vigorous development of the Internet of Things technology, the Internet of Things technology has been widely infiltrated into life, from the electric lights and televisions used in daily life to the military equipment of the country. The digitization of voice signals in the elevator voice intercom system will become an inevitable trend. In the existing digital intercom system, most voice signals are transmitted using complete voice coding. Because the data volume is large, if twisted pair transmission is used, the transmission distance is short. If long-distance transmission is required, relay equipment needs to be added to increase the transmission distance. Moreover, the complete voice data is easily monitored by the monitoring equipment, which obviously has a low safety factor. In the existing digital elevator intercom system, if voice compression is performed in the software, it will increase the pressure on software resources and increase the soft cost. The distance between the duty room and the computer room is far, and most of them use wireless transmission. The cost of wireless transmission is high, and it is easy to be interfered by the outside world, and the anti-interference ability is weak. The bus protocol is a private protocol, which cannot be connected to other platforms, and protocol conversion is required, which is difficult to operate. Information transmission uses level changes to transmit, which is easily interfered by the line, resulting in information transmission errors or transmission failures.

[0003] However, the existing elevator intercom system uses analog signals to transmit voice information, which is easily affected by external interference, resulting in incomplete voice information; the existing digital voice signal uses complete voice data, which has a relatively large load on the line, and requires the addition of relays and other equipment to increase the transmission distance, increasing the cost of use; using private protocols, it is difficult to connect to external information, and requires switching equipment; during the transmission process, the anti-interference ability is weak and is easily affected by external interference; the complete voice data transmission rate is slow and the delay is very high; software compression increases the burden on software armor and increases R&D costs; wiring completely abandons on-site installation resources, requires a new set of wiring systems, and increases wiring costs; it is difficult to connect to the Internet of Things platform, and requires switching equipment. Therefore, it is necessary to provide an intercom device with a long transmission distance, strong anti-interference ability, and can achieve two-way calls by simply adding address information, and strong scalability. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an intercom device with long transmission distance, strong anti-interference capability, capable of realizing two-way conversation by only adding address information and strong expansibility.

[0005] The technical solution adopted by the utility model is: the utility model includes duty room equipment, transfer equipment, machine room equipment, car top equipment, car equipment and pit equipment, the machine room equipment, the car top equipment, the car equipment and the pit equipment are all connected to the transfer equipment via a bus, the duty room equipment is connected to the transfer equipment, the car top equipment, the car equipment and the pit equipment respectively transmit corresponding call signals and status signals to the machine room equipment, and the machine room equipment transmits information to the duty room equipment through the transfer equipment.

[0006] It can be seen from the above scheme that the present application can convert analog signals into digital signal transmission, which is less affected by external factors and has strong anti-interference ability; when transmitting over long distances, the network cable to optical fiber technology is adopted, and the transmission distance is long; the echo cancellation function is added to eliminate the impact of echo on the line, and the user experience is better; the transmission adopts the standard TCP / IP protocol, which has better external scalability and can quickly connect to the customer platform; in a local area network, if you need to add equipment, you only need to add address information to achieve two-way calls, and it has strong scalability; the management machine can view the equipment status and voltage in real time, so that equipment maintenance personnel can see the specific equipment information; it fully meets the requirements of the new national standard for elevator intercoms; the 4G module is used to transfer the external line, which is convenient for equipment maintenance personnel to connect; the voice signal transmission with compression algorithm reduces the burden of the transmission medium, increases the transmission distance and anti-interference ability.

[0007] A preferred solution is that the intercom device also includes a transmission medium, and the duty room equipment is connected to the transfer equipment via the transmission medium.

[0008] A preferred solution is that the intercom device also includes a terminal device. When no one answers the call in the duty room, the alarm information needs to be transmitted to the terminal device, and the terminal device is remotely connected to the auxiliary machine.

[0009] A preferred solution is that the pit device includes a first microcontroller, and an RX pin and a TX pin of the first microcontroller are connected to the bus.

[0010] A preferred solution is that the car-top device includes a second microcontroller, and an RX pin and a TX pin of the second microcontroller are connected to the bus.

[0011] A preferred solution is that the car device includes a third microcontroller, and the RX pin and the TX pin of the third microcontroller are connected to the bus.

[0012] A preferred solution is that the computer room equipment includes a fourth microcontroller, and the RX1 pin and TX1 pin of the fourth microcontroller are connected to the duty room equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 is a circuit schematic diagram of the pit equipment;

[0015] Figure 3 is a circuit schematic diagram of the car top device;

[0016] Figure 4 is a circuit schematic diagram of the car equipment;

[0017] Figure 5 is a circuit schematic diagram of the equipment in the computer room;

[0018] Figure 6 It is a circuit schematic diagram of the MCU module of the duty room equipment;

[0019] Figure 7 It is a circuit schematic diagram of the communication module of the duty room equipment. DETAILED DESCRIPTION

[0020] like Figure 1 As shown, in this embodiment, the utility model includes a duty room equipment 1, a transfer equipment 2, a machine room equipment 3, a car top equipment 4, a car equipment 5 and a pit equipment 6, the machine room equipment 3, the car top equipment 4, the car equipment 5 and the pit equipment 6 are all connected to the transfer equipment 2 via a bus 7, the duty room equipment 1 is connected to the transfer equipment 2, the car top equipment 4, the car equipment 5 and the pit equipment 6 respectively transmit corresponding call signals and status signals to the machine room equipment 3, and the machine room equipment 3 transmits information to the duty room equipment 1 through the transfer equipment 2.

[0021] The duty room equipment 1 is used to receive the call information and information summary of the auxiliary machine, and has internal echo cancellation and noise reduction processing, and also uses a dedicated chip to compress and decompress the voice; the transfer device 2 transmits the original digital voice signal to the duty room equipment 1 through the TCP / IP protocol, as a protocol converter; the computer room equipment 3 is used to summarize the auxiliary machine status information and call information. After the computer room equipment 3 summarizes, the information is transmitted to the duty room equipment 1 through the transfer device 2, and has internal echo cancellation and noise reduction processing, and also uses a dedicated chip to compress and decompress the voice; The car top device 4 is used to transmit the call signal and status signal of the car top to the machine room equipment 3, and has its own echo cancellation and noise reduction processing, and also uses a dedicated chip to compress and decompress the voice; the car equipment 5 is used to transmit the car call signal and status signal to the machine room equipment 3, and has its own echo cancellation and noise reduction processing, and also uses a dedicated chip to compress and decompress the voice; the pit equipment 6 is used to transmit the pit call signal and status signal to the machine room equipment 3, and has its own echo cancellation and noise reduction processing, and also uses a dedicated chip to compress and decompress the voice.

[0022] like Figure 1 As shown, in this embodiment, the intercom device further includes a transmission medium 8, and the duty room equipment 1 is connected to the transfer device 2 via the transmission medium 8. The transmission medium 8 is used to transmit signals to the duty room equipment 1 in a bidirectional manner via electrical signals.

[0023] like Figure 1 As shown, in this embodiment, the intercom device also includes a terminal device 9. When no one answers the call in the duty room, the alarm information needs to be transmitted to the terminal device 9, and the terminal device 9 is remotely connected to the auxiliary machine. The terminal device 9 is a portable device carried by maintenance personnel. When no one answers the call in the duty room, the alarm information needs to be transmitted to the terminal device 9, and the terminal device 9 can also be remotely connected to the auxiliary machine.

[0024] like Figure 1 and Figure 2 As shown, in this embodiment, the pit device 6 includes a first microcontroller U3, and the RX pin and TX pin of the first microcontroller U3 are connected to the bus 7. The model of the first microcontroller U3 is APM32F103C8T6.

[0025] like Figure 1 and Figure 3 As shown, in this embodiment, the car-top device 4 includes a second microcontroller U6, and the RX pin and TX pin of the second microcontroller U6 are connected to the bus 7. The model of the second microcontroller U6 is APM32F103C8T6.

[0026] like Figure 1 and Figure 4 As shown, in this embodiment, the car device 5 includes a third microcontroller U2, and the RX pin and TX pin of the third microcontroller U2 are connected to the bus 7.

[0027] like Figure 1 and Figure 5 As shown, in this embodiment, the computer room equipment 3 includes a fourth microcontroller U10, and the RX1 pin and the TX1 pin of the fourth microcontroller U10 are connected to the duty room equipment 1. The model of the fourth microcontroller U10 is APM32F103C8T6.

[0028] like Figure 6 and Figure 7 As shown, in this embodiment, the MCU module of the duty room equipment 1 is U5, and the communication module of the duty room equipment 1 is U5.

Claims

1. An intercom device, characterized in that: It comprises a duty room device (1), a transfer device (2), a machine room device (3), a car top device (4), a car equipment (5) and a pit device (6). The machine room device (3), the car top device (4), the car equipment (5) and the pit equipment (6) are all connected to the transfer device (2) via a bus (7). The duty room device (1) is connected to the transfer device (2). The car top device (4), the car equipment (5) and the pit equipment (6) respectively transmit corresponding call signals and status signals to the machine room device (3). The machine room device (3) transmits information to the duty room device (1) via the transfer device (2).

2. The intercom device according to claim 1, characterized in that: The intercom device also includes a transmission medium (8), and the duty room equipment (1) is connected to the transfer equipment (2) via the transmission medium (8).

3. The intercom device according to claim 1, characterized in that: The intercom device also includes a terminal device (9). When no one in the duty room answers the call, alarm information needs to be transmitted to the terminal device (9), and the terminal device (9) is remotely connected to the auxiliary machine.

4. The intercom device according to claim 1, characterized in that: The pit device (6) comprises a first microcontroller (U3), wherein an RX pin and a TX pin of the first microcontroller (U3) are connected to the bus (7).

5. The intercom device according to claim 1, characterized in that: The car top device (4) comprises a second microcontroller (U6), and an RX pin and a TX pin of the second microcontroller (U6) are connected to the bus (7).

6. The intercom device according to claim 1, characterized in that: The elevator car device (5) comprises a third microcontroller (U2), and an RX pin and a TX pin of the third microcontroller (U2) are connected to the bus (7).

7. The intercom device according to claim 1, characterized in that: The computer room equipment (3) comprises a fourth microcontroller (U10), and the RX1 pin and the TX1 pin of the fourth microcontroller (U10) are connected to the duty room equipment (1).

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