POE elevator network switch

Abstract

The POE elevator network switch provided by the utility model has the advantages of flexible channel division, power supply for each device and reliable and stable input power supply. The device comprises an MCU module, a power supply module and an input and output network port module, the MCU module is communicated with an external network through a switching port, the input and output network port module is in communication connection with the MCU module, the power supply module is connected with the input and output network port module through a control unit output module, and the input and output network port module is connected with the MCU module. The MCU module is further connected with a channel control module, and the input and output network port module is in communication connection with equipment in an elevator and supplies power. The utility model is applied to the technical field of elevator communication equipment.

Description

Technical Field

[0001] The utility model is applied to the technical field of elevator communication equipment, and particularly relates to a POE elevator network switch. Background Art

[0002] An elevator is a device used for rapid movement between floors in high-rise buildings and is widely used in current residential and office buildings. The safety of the elevator and the operational reliability of the equipment for external interaction of the elevator are particularly important. Therefore, in order to more accurately obtain operation information to ensure the healthy operation of the elevator, elevator manufacturers continuously focus on the integration and analysis of relevant data during elevator operation. For example, all status data and video surveillance data during the self-operation of the elevator are issues that elevator manufacturers pay great attention to.

[0003] In the past, elevators were usually connected through analog signal devices. However, analog signals cannot operate stably in the current elevator environment. Therefore, Ethernet is usually used for digital signal connection to improve the anti-interference ability. But as more and more operating devices in the elevator become more intelligent. Therefore, in order to meet the use of various devices in the elevator environment, a switch can be used to distribute and transmit device signals. However, due to the different operating environments of elevators and conventional switches, the requirements are also different. Common switches on the general market, as common devices for data conversion, have the following problems: 1. The channel allocation is not flexible enough; 2. Only has the function of data transmission; 3. The power supply form cannot meet the requirements of each device in the elevator.

[0004] If a switch with flexible channel division, power supply to each device, and reliable and stable input power can be provided, the application problem of the switch in the elevator environment can be well solved. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a POE elevator network switch with flexible channel division, power supply to each device, and reliable and stable input power.

[0006] The technical solution adopted by the utility model is as follows: The utility model includes an MCU module, a power module, and an input / output network port module. The MCU module communicates with an external network through a switching port. The input / output network port module is communicatively connected to the MCU module. The power module is connected to the input / output network port module through a control unit output module. The MCU module is also connected to a channel control module. The input / output network port module is communicatively connected to and supplies power to devices in the elevator.

[0007] As can be seen from the above solution, the voltage converted from the input is provided by the power supply module to enable each module in the switch to operate, and at the same time, the output voltage is supplied to the input / output network port module to power the devices in the elevator, thereby realizing communication and power supply simultaneously, simplifying the wiring of the devices in the elevator and avoiding the setting of power adapters, and facilitating later maintenance. The power supply of each input / output network port is controlled by the output module of the control unit, so that adaptive power supply can be provided for the connected devices. The MCU module serves as a communication center for signal transmission, communicates with the external network through the switching port, and communicates with the devices in the elevator through the input / output network port module. At the same time, the power supply channel of the output module of the control unit is flexibly controlled by setting the channel control module. The power supply module provides a wide voltage input to simultaneously be compatible with the voltages required by various devices in the elevator, such as monitoring, intercom, and display screens.

[0008] A preferred solution is that the power supply module includes a power supply port, a first power supply chip, several second power supply chips, and a third power supply chip. The input ends of the first power supply chip and the third power supply chip are both connected to the power supply port. The input ends of several second power supply chips are all connected to the output end of the first power supply chip. The output end of the third power supply chip is connected to the input end of the output module of the control unit.

[0009] A preferred solution is that the MCU module includes a controller chip with the model of RTL8367. The channel control module includes a switch with the model of SW-DIP12. The E1_DO2 port and the E1_DO3 port of the controller chip are connected to the sixteenth pin and the fifteenth pin of the switch.

[0010] A preferred solution is that the input / output network port module includes several groups of network transformers. One end of the network transformer communicates with the MCU module. The other end of the network transformer is communicatively connected to the devices in the elevator through the network port. The power supply port of the network transformer is connected to the corresponding output port of the output module of the control unit.

[0011] A preferred solution is that the output module of the control unit includes a power management chip, a on-off control chip, and several groups of relays. The on-off control chip is communicatively connected to the MCU module. The coils of several groups of relays are respectively connected to several output ports of the on-off control chip. The input port of the power management chip is connected to the output port of the third power supply chip. Several output ports of the power management chip are respectively connected to several channels of the input / output network port module through several relays for power supply connection.

[0012] A preferred solution is that the MCU module is also connected to a storage module. Description of the Drawings

[0013] Figure 1 is the system block diagram of the present utility model;

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

[0015] Figure 3 is the circuit schematic diagram of the power supply module;

[0016] Figure 4 is the circuit schematic diagram of the input / output network interface module;

[0017] Figure 5 is the circuit schematic diagram of the control unit output module;

[0018] Figure 6 is the circuit schematic diagram of the switching port. Detailed implementation manners

[0019] As Figures 1 to 6 shown, in this embodiment, the present utility model includes an MCU module 1, a power supply module 2 and an input / output network interface module 3. The MCU module 1 communicates with an external network through a switching port 4. The input / output network interface module 3 is communicatively connected to the MCU module 1. The power supply module 2 is connected to the input / output network interface module 3 through a control unit output module 5. The MCU module 1 is further connected to a channel control module 6. The input / output network interface module 3 is communicatively connected to and supplies power to devices in the elevator. The switching port 4 includes an OCB 1*9 optical module and a network transformer both communicatively connected to the MCU module 1. The MCU module 1 realizes connection with an external optical fiber or network cable through the switching port 4, and thus accesses the external network. The power supply module 2 is used to provide electric energy to enable the MCU module 1 to operate and provide a working voltage to the input / output network interface module 3, and realizes simultaneous signal transmission and power supply through the input / output network interface module 3, thereby providing a POE switch. Since the types of devices in the elevator are different and there is mutual interference, by setting the channel control module 6, channel division is preset for the MCU module 1, and thus data in different channels are isolated from each other while data exchange is performed, thereby meeting the directional data transmission of external users.

[0020] As Figure 3As shown, in this embodiment, the power supply module 2 includes a power port CNP1, a first power chip U1, three groups of second power chips U2 / U4 / U5, and a third power chip U5. The input ends of the first power chip U1 and the third power chip U5 are both connected to the power port CNP1. The first power chip U1 is a power management chip with the model LM2596S-ADJ. The input ends of the three groups of second power chips are all connected to the output end of the first power chip U1 and respectively convert two paths of 3.3V and one path of 1.8V working voltages. Among them, the two paths of 3.3V working voltages are respectively supplied to the MCU module 1 and each network transformer to work, and one path of 1.8V working voltage is supplied to small-power components such as LED lights to work. The second power chip is a power management chip with the model AMS1117. The third power chip U5 is a power management chip with the model TPS43060. The output end of the third power chip U5 is connected to the input end of the control unit output module 5. Through the third power chip U5, it is possible to achieve compatibility with a voltage input of 12V - 36V and convert it into a 54V DC voltage for the elevator internal equipment to work, thus eliminating the need for an additional adapter for the elevator internal equipment and being able to support a wide voltage input, enabling power supply while communicating, and the maintenance and repair cost in the later stage is high.

[0021] As Figure 2 shown, in this embodiment, the MCU module 1 includes a controller chip U3 with the model RTL8367. The channel control module 6 includes a switch SW1 with the model SW-DIP12. The E1_DO2 port and E1_DO3 port of the controller chip U3 are connected to the sixteenth pin and the fifteenth pin of the switch SW1. The controller chip U3 is used to divide the network channels of VLAN, receive and feedback the data of the elevator internal equipment to the external network, and transmit the data of the external network to the elevator internal equipment, thereby realizing actions such as intercom and uploading of monitoring pictures. The dial of the switch SW1 can be read by the controller chip U3, and then the channels are divided according to the pre-adjusted dial information to ensure that the data of different devices can be isolated from each other, making it more secure and reliable.

[0022] As Figure 4 shown, in this embodiment, the input / output network interface module 3 includes several groups of network transformers with the model GST5009-D. One end of the network transformer communicates with the MCU module 1, and the other end of the network transformer is communicatively connected to the elevator internal equipment through a network interface. The power supply port of the network transformer is connected to the corresponding output port of the control unit output module 5.

[0023] As Figure 5As shown, in this embodiment, the control unit output module 5 includes a power management chip U8 of model MP3922, a on-off control chip U9 of model ULN2004, and several groups of relays. The input ports of the on-off control chip U9 are connected to the IO ports of the MCU module 1. The coils of several groups of the relays are respectively connected to several output ports of the on-off control chip U9. The input port of the power management chip U8 is connected to the output port of the third power chip U5. Several output ports of the power management chip U8 are respectively connected to several channels of the input-output network interface module 3 through several of the relays for power supply. The MCU module 1 controls the several relays to be attracted or disconnected through the on-off control chip U9, and further controls the conduction states of the corresponding output ports of the power management chip U8 and several channels of the input-output network interface module 3, so as to supply power to the elevator internal equipment devices that need to be energized.

[0024] In this embodiment, the MCU module 1 is further connected to a storage module 7 for remote upgrade and data storage.

[0025] Although the embodiments of the present utility model are described with actual solutions, they do not constitute a limitation to the meaning of the present utility model. For those skilled in the art, the modifications to its implementation solutions according to this specification and the combinations with other solutions are obvious.

Claims

1. A POE elevator network switch, characterized in that: It comprises an MCU module (1), a power module (2) and an input / output network port module (3); the MCU module (1) communicates with an external network via a switching port (4); the input / output network port module (3) is communicatively connected to the MCU module (1); the power module (2) is connected to the input / output network port module (3) via a control unit output module (5); the MCU module (1) is also connected to a channel control module (6); and the input / output network port module (3) is communicatively connected to equipment in the elevator and supplies power.

2. A POE elevator network switch according to claim 1, characterized in that: The power module (2) comprises a power port (CNP1), a first power chip (U1), a plurality of second power chips and a third power chip (U5); the input ends of the first power chip (U1) and the third power chip (U5) are both connected to the power port (CNP1); the input ends of the plurality of second power chips are both connected to the output end of the first power chip (U1); and the output end of the third power chip (U5) is connected to the input end of the control unit output module (5).

3. A POE elevator network switch according to claim 1, characterized in that: The MCU module (1) comprises a controller chip (U3) of model RTL8367, the channel control module (6) comprises a switch (SW1) of model SW-DIP12, and the E1_DO2 port and the E1_DO3 port of the controller chip (U3) are connected to the sixteenth pin and the fifteenth pin of the switch (SW1).

4. A POE elevator network switch according to claim 1, characterized in that: The input and output network port module (3) comprises a plurality of groups of network transformers, one end of the network transformer communicates with the MCU module (1), the other end of the network transformer is connected to the equipment in the elevator through the network port, and the power supply port of the network transformer is connected to the output port corresponding to the control unit output module (5).

5. A POE elevator network switch according to claim 2, characterized in that: The control unit output module (5) comprises a power management chip (U8), an on-off control chip (U9) and a plurality of groups of relays, the on-off control chip (U9) being communicatively connected to the MCU module (1), the coils of the plurality of groups of relays being respectively connected to the plurality of output ports of the on-off control chip (U9), the input port of the power management chip (U8) being connected to the output port of the third power chip (U5), and the plurality of output ports of the power management chip (U8) being connected to the plurality of channels of the input / output network port module (3) via the plurality of relays.

6. A POE elevator network switch according to claim 1, characterized in that: The MCU module (1) is also connected to a storage module (7).

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