CN219918927U - Multi-network-port power carrier communication system suitable for elevator - Google Patents
Multi-network-port power carrier communication system suitable for elevator Download PDFInfo
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- CN219918927U CN219918927U CN202223395649.7U CN202223395649U CN219918927U CN 219918927 U CN219918927 U CN 219918927U CN 202223395649 U CN202223395649 U CN 202223395649U CN 219918927 U CN219918927 U CN 219918927U
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Abstract
The utility model relates to the technical field of power carrier communication, in particular to a multi-network-port power carrier communication system suitable for an elevator, which comprises a first power carrier device and a second power carrier device; the first power carrier device is arranged in the elevator car, an Ethernet switching module is arranged in the first power carrier device, and the Ethernet switching module is respectively connected with a plurality of Ethernet devices in the elevator car through a plurality of RJ45 network ports arranged on the first power carrier device; the second power carrier device is arranged in the machine room, a power carrier line is distributed between the machine room and the elevator car, and the first power carrier device is connected with the second power carrier device through the power carrier line. The beneficial effects are that: by adding the Ethernet switching module in the first power carrier device arranged in the car, the first power carrier device can realize the access process to a plurality of Ethernet devices without additionally arranging a switch, and the complexity of operation and maintenance is reduced.
Description
Technical Field
The utility model relates to the technical field of power carrier communication, in particular to a multi-network-port power carrier communication system suitable for an elevator.
Background
Power line carrier (Power Line Carrier, PLC) communication is a special communication scheme for voice or data transmission using a power line as an information transmission medium. The power line is generally classified into high-medium-low 3 types in the power carrier field, and generally the high-voltage power line refers to a voltage class of 35kV and above, the medium-voltage power line refers to a voltage class of 10kV, and the low-voltage distribution line refers to a 380/220V user line. Because the elevator car is in a motion state, and the metal closed car has a strong shielding effect on wireless signals, the elevator car has a good application prospect by taking the original power supply line of the elevator car as a power carrier line and arranging a power carrier device in a car and a remote machine room so as to build Ethernet communication connection in the elevator car for network equipment such as a camera in the elevator car.
In the prior art, there are elevator internal communication schemes implemented based on power carrier technology. For example, chinese patent CN201810571223.1 discloses an elevator system based on power line carrier and IP network clustering, including an outbound system, a car system, a pit system, a machine room system, and an on-duty room system; and an outbound power carrier communication module, a car power carrier communication module, a pit power carrier communication module, a machine room power carrier communication module and an on-duty room power carrier communication module are respectively arranged among the systems so that various components such as elevator control, elevator Internet of things, five-party intercom and video monitoring can be accessed in an standardized mode.
However, in the practical implementation process, the inventor finds that when more network devices are set in the elevator car according to the power carrier scheme in the prior art, switch devices are generally required to be arranged in the elevator car, and signals of the network devices are converged by the switch devices and then sent out through the power carrier devices, for example, in the above-mentioned chinese patent, it is mentioned that "the car network switches are respectively in communication connection with the car power carrier communication module, the second protocol conversion module, the car top interphone, the car interphone and the multimedia intelligent terminal", which results in that when the devices are arranged and maintained, the power carrier devices and the ethernet switches are required to be respectively arranged in the elevator car and corresponding power supply and communication lines are configured, which leads to the problem of higher operation and maintenance costs of the devices.
Disclosure of Invention
Aiming at the problems in the prior art, a multi-network-port power carrier communication system applicable to an elevator is provided.
The specific technical scheme is as follows:
a multi-network port power carrier communication system suitable for an elevator comprises a first power carrier device and a second power carrier device;
the first power carrier device is arranged in an elevator car, an Ethernet switching module is arranged in the first power carrier device, and the Ethernet switching module is respectively connected with a plurality of Ethernet devices in the elevator car through a plurality of RJ45 network ports arranged on the first power carrier device;
the second power carrier device is arranged in the machine room, a power carrier line is arranged between the machine room and the elevator car, and the first power carrier device is connected with the second power carrier device through the power carrier line.
In another aspect, the first power carrier device includes:
the first end of the power line communication module is connected with a wide area network port of the Ethernet switching module;
the local network ports of the Ethernet switching module are respectively connected to a plurality of RJ45 network ports;
the second end of the power line communication module is connected to the first end of a power line connector, and the second end of the power line connector is connected with the electronic carrier line.
On the other hand, the first power carrier device further comprises a line gain module, wherein a first end of the line gain module is connected with the power line communication module, and a second end of the line gain module is connected with the power line connector.
In another aspect, the first power carrier device further includes:
the input end of the alternating current-to-direct current module is connected to an external power supply circuit through a power line connector;
the input end of the direct current voltage reduction module is connected with the output end of the alternating current-to-direct current module, and the output end of the direct current voltage reduction module is respectively connected with the power line communication module and the Ethernet exchange module.
In another aspect, the first power carrier device further includes:
the input end of the direct current connector is connected with the output end of the alternating current-direct current module, and the direct current connector is connected with external direct current electric equipment.
In another aspect, the first power carrier device further includes:
the input end of the reset dog module is connected with the signal output end of the reset key, and the output end of the reset dog module is connected with the reset pin of the power line communication module.
In another aspect, the first power carrier device further includes:
the power supply end of the indicator lamp module is connected with the output end of the direct current voltage reduction module;
and a signal input end of the indicator lamp module is connected with an indicator lamp output pin of the power line communication module.
On the other hand, the second power carrier device is connected with local area network equipment arranged in the machine room through an Ethernet interface.
In another aspect, the ethernet device includes a camera, a display screen, and a telephony device disposed in the elevator car.
The technical scheme has the following advantages or beneficial effects:
to the power line carrier equipment of elevator scene among the prior art, need additionally set up the network switch under the condition that many network equipment cut-ins and lead to the complicated problem of fortune dimension, the utility model discloses an increase ethernet switching module in the first power line carrier device that sets up in the car, and then make first power line carrier device itself can realize the access process to a plurality of ethernet equipment, need not additionally set up the switch, reduced the complexity of fortune dimension.
Drawings
Embodiments of the present utility model will now be described more fully with reference to the accompanying drawings. The drawings, however, are for illustration and description only and are not intended as a definition of the limits of the utility model.
FIG. 1 is an overall schematic of an embodiment of the present utility model;
fig. 2 is a schematic diagram of a first power carrier device submodule according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
The utility model comprises the following steps:
as shown in fig. 1, the multi-network power carrier communication system suitable for an elevator comprises a first power carrier device 1 and a second power carrier device 2;
the first power carrier device 1 is arranged in an elevator car, an Ethernet switching module 101 is arranged in the first power carrier device 1, and the Ethernet switching module 101 is respectively connected with a plurality of Ethernet devices 1A, 1B and 1C in the elevator car through a plurality of RJ45 network ports arranged on the first power carrier device 1;
the second power carrier device 2 is arranged in a machine room, a power carrier line is distributed between the machine room and the elevator car, and the first power carrier device 1 is connected with the second power carrier device 2 through the power carrier line;
the ethernet devices 1A, 1B, 1C comprise cameras, display screens, call devices and the like arranged in the elevator car;
the second power carrier device 2 is connected with local area network equipment 2A arranged in the machine room through an ethernet interface.
Specifically, to the power line carrier equipment of elevator scene among the prior art, need additionally set up the network switch under the condition that many network devices cut in and lead to the complicated problem of fortune dimension, the utility model discloses an increase ethernet switching module 101 in the first power line carrier device 1 that sets up in the car, and then make first power line carrier device 1 itself can realize the access process to a plurality of ethernet equipment, need not additionally set up the switch, reduced the complexity of fortune dimension.
In the implementation process, the first power carrier device 1 and the second power carrier device 2 are communication devices having the power carrier function and the same communication protocol, which are configured in advance, and the specific communication protocol, the flow, and the like executed by the first power carrier device 1 and the second power carrier device 2 may be implemented based on the existing power carrier communication protocol, which are not to be protected herein, and therefore, the first power carrier device 1 and the second power carrier device 2 may be the same power carrier device or different power carrier devices. For example, when the second power carrier device 2 only needs to access to a lan gateway or a server in the machine room, it may be implemented by using an existing power carrier device having only one network port. The lan device 2A refers to a device capable of ethernet communication, which is disposed in a machine room, and the actual device type is not limited, and may be a computer management system, a storage server array for storing monitoring video, an elevator alarm call system, or the like.
In one embodiment, as shown in fig. 2, the first power carrier apparatus 1 includes:
the first end of the power line communication module 102 is connected with the wide area network port of the Ethernet switching module 101;
the local network ports of the Ethernet switching module 101 are respectively connected to a plurality of RJ45 network ports;
a second end of the power line communication module 102 is connected to a first end of the power line connector 103, and a second end of the power line connector 103 is connected to the electronic carrier line.
As an alternative embodiment, the first power carrier device 1 further includes a line gain module 104, a first end of the line gain module 104 is connected to the power line communication module 102, and a second end of the line gain module 104 is connected to the power line coupler.
Specifically, in order to achieve the effect of the power carrier device on accessing the multiple ethernet devices, in this embodiment, by respectively providing the ethernet switching module 101 and the power line communication module 102 that are connected to each other in the first power carrier device 1, where a local network port (LAN port) of the ethernet switching module 101 is connected to multiple RJ45 network ports, which may be embodied as an RJ45 network port connector 101A in an implementation process, the RJ45 network port connector 101A includes multiple RJ45 network ports, and each RJ45 network port is connected to a local network port of the ethernet switching module 101 through a set of local network wire harnesses, where the first power carrier device 1 shown in fig. 2 includes at least two sets of local network wire harnesses, and one set includes a first local transmitting positive electrode TX1+, a first local transmitting negative electrode TX1-, a first local receiving positive electrode RX1-; the other group includes a second local transmit anode TX2+, a second local transmit cathode TX2-, a second local receive anode RX2+, and a second local receive cathode RX2-. The ethernet switch module 101 may be implemented by using an existing switch chip, and specific device access, IP address allocation, data processing methods and the like are not described herein. Subsequently, the ethernet switching module 101 is connected to the first end of the power line communication module 102 through the first transmit pin TXDP, the second transmit pin TXDM, the first receive pin RXDP, and the second receive pin RXDM. Then, the second end of the power line communication module 102 outputs a corresponding power line communication signal through the first power transmission pin ptx+, the second power transmission pin PTX-, the first power reception pin prx+, and the second power reception pin PRX-to achieve a communication effect on the power carrier line.
To further achieve a longer transmission distance, a line gain module 104 is further provided, a first end of the line gain module 104 is connected to a second end of the power line communication module 102 to receive an electrical signal on the first power transmission pin ptx+, the second power transmission pin PTX-, the first power reception pin prx+, the second power reception pin PRX-; subsequently, it is connected to the power line connector 103 through the live wire transmitting pin L/TX, the neutral wire receiving pin N/RX, and the floating ground pin FG.
In one embodiment, the first power carrier apparatus 1 further includes:
the input end of the alternating current-to-direct current module 105 is connected to an external power supply circuit through a power line connector 106;
the input end of the direct current voltage reduction module 107 is connected with the output end of the alternating current-direct current module 105, and the output end of the direct current voltage reduction module 107 is respectively connected with the power line communication module 102 and the Ethernet switching module 101.
As an alternative embodiment, the power supply circuit and the power carrier line may be the same line.
Specifically, the first power carrier device 1 in this embodiment is provided with a power supply device, and includes an ac-dc conversion module 105, where the ac-dc conversion module 105 may be set as a 100-240V wide ac-dc conversion circuit, and may convert external ac into 12V dc for each module; in order to meet the power supply requirement of each module in the first power carrier device 1, a direct current voltage reduction module 107 is further arranged to realize voltage reduction conversion from 12V to +3.3v.
In one embodiment, the first power carrier apparatus 1 further includes:
the input end of the DC connector 108 is connected with the output end of the AC-DC module 107, and the DC connector 108 is connected with external DC electric equipment.
Specifically, to meet the electricity demand of other electric devices in the elevator car, in this embodiment, a dc connector 108 is further added to the first power carrier device 1, and the dc connector can draw +12v dc power from the ac-dc module 105 for external devices.
In one embodiment, the first power carrier apparatus 1 further includes:
the input end of the RESET dog module 109 is connected with the signal output end of the RESET key 110, and the output end of the RESET dog module 109 is connected with the RESET pin RESET of the power line communication module 102.
Specifically, to meet the device debugging requirement, in this solution, the RESET dog module 109 is further disposed in the first power carrier device 1 to connect to the RESET pin RESET of the power line communication module 102, and the RESET key 110 is led out from the housing of the first power carrier device 1. When the operation and maintenance personnel need to restart the first power carrier device 1, the level on the RESET pin RESET can be changed by triggering the RESET key 110, so that the power line communication module 102 is restarted.
In one embodiment, the first power carrier apparatus 1 further includes:
the power supply end of the indicator light module 111 is connected with the output end of the direct current voltage reduction module 105;
the signal input end of the indicator light module 111 is connected to the indicator light output pin IO of the power line communication module 102.
Specifically, in order to achieve a better indication effect on the current state of the device, in this embodiment, the indicator light module 111 is connected to the indicator light output pin IO of the power line communication module 102 to obtain the state information output by the power line communication module 102, and control the corresponding indicator lights, including the PLC and PWR indicator lights, to achieve effective indication on the state of the device.
The utility model has the beneficial effects that:
to the power line carrier equipment of elevator scene among the prior art, need additionally set up the network switch under the condition that many network equipment cut-ins and lead to the complicated problem of fortune dimension, the utility model discloses an increase ethernet switching module in the first power line carrier device that sets up in the car, and then make first power line carrier device itself can realize the access process to a plurality of ethernet equipment, need not additionally set up the switch, reduced the complexity of fortune dimension.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (9)
1. The multi-network-port power carrier communication system suitable for the elevator is characterized by comprising a first power carrier device and a second power carrier device;
the first power carrier device is arranged in an elevator car, an Ethernet switching module is arranged in the first power carrier device, and the Ethernet switching module is respectively connected with a plurality of Ethernet devices in the elevator car through a plurality of RJ45 network ports arranged on the first power carrier device;
the second power carrier device is arranged in the machine room, a power carrier line is arranged between the machine room and the elevator car, and the first power carrier device is connected with the second power carrier device through the power carrier line.
2. The multi-portal power carrier communication system of claim 1, wherein the first power carrier device comprises:
the first end of the power line communication module is connected with a wide area network port of the Ethernet switching module;
the local network ports of the Ethernet switching module are respectively connected to a plurality of RJ45 network ports;
the second end of the power line communication module is connected to the first end of a power line connector, and the second end of the power line connector is connected with the power carrier line.
3. The multi-port power carrier communication system of claim 2, wherein the first power carrier device further comprises a line gain module, a first end of the line gain module being connected to the power line communication module, a second end of the line gain module being connected to the power line connector.
4. The multi-portal power carrier communication system of claim 2, wherein the first power carrier device further comprises:
the input end of the alternating current-to-direct current module is connected to an external power supply circuit through a power line connector;
the input end of the direct current voltage reduction module is connected with the output end of the alternating current-to-direct current module, and the output end of the direct current voltage reduction module is respectively connected with the power line communication module and the Ethernet switching module.
5. The multi-portal power carrier communication system of claim 4, wherein the first power carrier device further comprises:
the input end of the direct current connector is connected with the output end of the alternating current-direct current module, and the direct current connector is connected with external direct current electric equipment.
6. The multi-portal power carrier communication system of claim 2, wherein the first power carrier device further comprises:
the input end of the reset dog module is connected with the signal output end of the reset key, and the output end of the reset dog module is connected with the reset pin of the power line communication module.
7. The multi-portal power carrier communication system of claim 4, wherein the first power carrier device further comprises:
the power supply end of the indicator lamp module is connected with the output end of the direct current voltage reduction module;
and a signal input end of the indicator lamp module is connected with an indicator lamp output pin of the power line communication module.
8. The multi-port power carrier communication system of claim 1, wherein the second power carrier device is connected to a local area network device disposed in the machine room through an ethernet interface.
9. The multi-portal power carrier communication system of claim 1, wherein the ethernet device comprises a camera, a display screen, and a telephony device disposed in the elevator car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223395649.7U CN219918927U (en) | 2022-12-15 | 2022-12-15 | Multi-network-port power carrier communication system suitable for elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223395649.7U CN219918927U (en) | 2022-12-15 | 2022-12-15 | Multi-network-port power carrier communication system suitable for elevator |
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| Publication Number | Publication Date |
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| CN219918927U true CN219918927U (en) | 2023-10-27 |
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| CN202223395649.7U Active CN219918927U (en) | 2022-12-15 | 2022-12-15 | Multi-network-port power carrier communication system suitable for elevator |
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| CN (1) | CN219918927U (en) |
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