DE202009013171U1 - Power over Ethernet (PoE) system - Google Patents

Abstract

Power over Ethernet (PoE) system with an uninterruptible power supply of data terminals in data networks and / or communication systems with a distribution element and a power supply, to which a plurality of network devices, in particular communication terminals, can be connected, characterized in that the Power over Ethernet (PoE A system combines a power supply unit, power distribution PoE injector, a monitoring / control unit and an uninterruptible power supply unit into a housing, wherein the uninterruptible power supply unit consists of the components Power over Ethernet (PoE) ports (B), a base circuit board (A) , an internal power supply unit (C) and an internal router board (D).

Description

The The invention relates to a Power over Ethernet (PoE) system with a uninterruptible power supply of data terminals in data networks or communication systems with a distributor element with a power supply to which a variety of network devices - especially Communication terminals - connectable are.

Around Network devices, such as network cameras, webcams, VoIP phones, speakers, wireless access points Networks or communication terminals etc. stronger to integrate into the professional and private life is one Reduction of the required for the connection Cable an important requirement.

The wireless data transmission via technologies such as Although wireless LAN, Bluetooth and DECT save the so-called "twisted-pair cable", which is needed for data transmission, however For power supply usually a power cable required. In the standard IEEE 802.3af Power over Ethernet (PoE) the power supply of the network devices via the Twist-pair cable, eliminating the need for separate power cables can. This reduces in particular the costs and the Expenses for installation by the network operator.

The Power over Ethernet (PoE) is a technology for that Wired Internet. Most widespread today is the LAN technology (LAN Aarea Network).

PoE enables the provision of electrical power, which is needed for the operation of each device is via the data cable instead of via separate Power supply cable, which increases the number of installed Cable significantly reduced. It thus eliminates the need equip each access node of the network with an electrical installation and to install additional sockets.

Is known from the DE 10 2004 046 401 B4 a communication system having a power supply unit, referred to as a distribution element, which is coupled to a power supply unit to which a plurality of network devices can be connected. Each of the network devices connected to the distribution element has a network element, each network device being supplied with power and messages by the distribution element. Furthermore, an assembly is arranged in each network device, which is set up to determine from a network of passive components of a parameter characterizing this network, which parameter allows a statement about the energy requirements of the network device. The determination can be made according to the specifications of the IEEE 802.3af standard.

at Data networks whose goal is to get lots of information in short time units to transmit, with an optimized wiring provided is that transmit the exiting frequencies as low as possible, is the so-called Power over Ethernet (PoE) method known. It also allows terminals, such as Example cameras, over a DC voltage with over to supply the network cable without bigger ones Have to operate installation effort. Here are Network-compatible devices over the usual 8-wire Ethernet cable powered. A significant advantage From PoE is that you save a power cable can and so in hard to reach places or in Areas where many cables would interfere Ethernet-attached devices can install. Thus let On the one hand drastically reduce installation costs, on the other hand can the easy-to-implement use of a central, uninterruptible Power supply the reliability of the connected devices increase.

A uninterruptible power supply (UPS) of network components can so far only by the combination of several realize separate devices. A variant is the use a conventional UPS system, which the respective terminals powered by the power grid across multiple power supplies, with in this combination the data connection of the individual network devices is still implemented separately from the power supply and also no central control and control unit available stands.

A second variant is the compilation with UPS system and a PoE injector. Here, only the PoE injector in a conventional manner powered by the UPS system. All other components draw their energy via the Ethernet cable. This possibility Although provides a supply for the terminals with power and data over a line, but also missing here a central monitoring and control unit.

Either the just presented solutions as well as the registration submitted PoE UPS can of course be with active components, such as an Ethernet switch, combine and expand, to realize usual network functionalities.

All previous solutions consist of at least two separate components and a large amount of cable material. They are therefore not particularly space-saving, considering that the must be housed somewhere with power to be supplied terminals (in the respective place of use). Accordingly, the installation and planning effort is quite high.

at all previous solutions lack the possibility the power supply of the "network", in particular the every single network component to centrally monitor and to control. No current UPS implementation is able to to register the failure of a connected device separately. Also the possibility of a remote maintenance is missing or insufficient components in the previous solutions not given. Thus, an operator, for example, at non-specific failures of individual devices high Maintenance costs, as only an on-site service is possible.

communications equipment usually require different supply voltages. However, previous UPS solutions are unable to handle their individual Power connections to regulate and control separately. Consequently is the simultaneous provision and adaptation of different Voltage outputs not possible. This can too affect the lifetime of the connected devices negatively.

task The invention is a power over Ethernet (PoE) system with an uninterruptible power supply to network components to provide with their help individual power connections can be regulated and / or controlled separately and this while providing and adapting different Voltage outputs.

According to the invention the problem solved by the features of the main claim. Further embodiments are in the dependent claims and in described in the following embodiment.

The The invention relates to a power over Ethernet (PoE) system for uninterruptible power Power supply of network components (eg router, webcam, VoIP phone, Access point, etc.) and others (usable in the outdoor area) Communication technology over the existing Ethernet installation.

The PoE UPS combines power supply, power distribution, PoE injector, UPS system and a monitoring / control unit in a device, each connected terminal being monitored separately can. An integrated GSM modem as well as an additional Ethernet interface allow both management device remotely (eg via web browser or by SMS), as well as the communication of the UPS to the outside (eg event message in case of power failure), the whole construction also other interfaces (eg serial) for the direct Access provides to a control and monitoring site to ensure.

The Po-E-UPS is used to realize an uninterruptible power supply of communication technology, which over the existing Ethernet installation supplied with a DC voltage. The standard version supports only devices with non-IEEE 802.3af-2003 compatible ports and delivers a voltage output of approximately 18V to 24V. Optional the PoE UPS with appropriate modification also as an active PoE provider and IEEE 802.3af 2003-enabled devices supply.

It demonstrate

1 - Power over Ethernet (PoE) system

2 - Representation of the components of the Power over Ethernet (PoE) system

3 - Base board

4 - Power over Ethernet (PoE) module

5 - Power supply unit

6 - internal router board

The 1 shows a Power over Ethernet (PoE) system with uninterruptible power supply in an example configuration. This system is housed in a rack-mount enclosure and essentially comprises the Power over Ethernet (PoE) modules 1 and 2 , a terminal 3 , the power supply 7 the external devices, the monitor 9 , the power supply (230 V) 10 , the battery board 14 with the accumulators 15 , the internal router board 13 and an internal power supply 17 ,

Furthermore, the connections are for the Ethernet 4 , for the external temperature sensors 5 . 5 , the SIM Card Reader GSM 11 with an antenna GSM 12 and network sockets 16 intended.

The 2 shows a representation of the components of the Power over Ethernet (PoE) system with uninterruptible power supply. The components consist of one or more Power over Ethernet (PoE) ports - 4 A base board A - 3 An internal power supply unit C 5 -, as well as an internal router board D - 5 -.

The Base board (BLP) A has a microcontroller μC with memory FRAM, a real-time clock RTC and a temperature sensor on board.

There is also a CAN interface CAS-SS for connecting the Power over Ethernet (PoE) modules 1 . 2 and other terminals, a monitor MON with LEDs and buttons, an interface RS-232-TERM for connection, for example, to a PC and an Ethernet interface ETH-SS for parameterization, status request, etc. of a GSM modem for wireless data transmission, for example, the status, the control of the function, threshold setting, etc., an interface of the GSM modem GSM modem SS for connecting a SIM card reader, an antenna, a charge controller for the buffer accumulator AKKU-LORD, an interface to the buffer accumulator circuit AKKU-IF and microcontroller μC for detecting the end position detection, battery temperature, etc., of a power supply App.-STV-INTERN for internal user terminals, eg 5 V / 12 V / 18 V / 24 V max. 5 W, a STV-PoE power supply for the Power over Ethernet (PoE) modules 1 . 2 with a raw voltage, z. Eg 18 V / 24 V 5 W, an internal power supply SYS-STV-INTERN. B. 3.3 V / 3.6 V + 5 W and a power supply input STV-INPUT SYSTEM for voltage conditioning, step-down or step-up controller.

Component B - Power over Ethernet (PoE) assembly 1 . 2 has a PoE port, for example 2 × 4RJ45 jacks with or without LED for adapting the terminals with PoE feed / data transmission, a microcontroller μC with memory FRAM, a temperature sensor on board for controlling and monitoring the PoE power supply, a power / Voltage measuring device Power Control and a CAN interface CAM-SS-PoE for connection to the base board (BLP) and other devices.

The internal power supply 17 (Component C) is on the one hand with a voltage source (230 V / AC) and on the other hand with the accumulators 15 (24 V / DC) connected.

The internal router board (component D) has an application terminal of the user (internal) USER-Application as well as the Ethernet interfaces Eth! to Eth4 and the interface SS-RS232.

In normal operation, the device is supplied via an AC voltage between 90 V and 240 V at 50 Hz / 60 Hz. In this state, the power supply of the connected devices from the mains supply, with the built-in battery 15 is loaded in parallel. The so-called emergency operation is triggered by the elimination of the AC power supply.

• • Interner Anschluß mit 5 V/12 V/18 V/24 V bis max. 1 A, bei 5 V, begrenzt auf 5 W
• • Externer Anschluß mit 5 V/12 V/18 V/24 V bis max. 1 A, bei 5 V, begrenzt auf 5 W
• • PoE-Versorgung:
• • Modul mit jeweils 4 PoE-Ports, wobei die PoE Portanzahl auf Wunsch zwischen 1 bis n Ports variieren kann
• • Ausgangsspannung pro Port zwischen 18 V und 24 V bei max. 0,5 A
• • PoE 24 V nur bei Netzbetrieb, bei Akkubetrieb wird maximal die Akku-Spannung abzüglich der Abfälle an den Halbleiterstrecken bereitgestellt, bei Speisung aus einem Solarenergiepaket gelten ähnliche Randbedingungen wie bei Akkubetrieb
• • PoE 18 V wird mit einem zentralen Abwärtsregler stabilisiert
• • Einstellung des maximalen Stromes auf jedem 4 × PoE-Modul werkseitig

When the mains voltage returns, the system returns to normal operation. In emergency mode, the entire power supply of the Power over Ethernet (PoE) system and the connected devices from the battery takes place. The terminals themselves are supplied with a DC voltage, whereby there are the following connection possibilities:

• • Internal connection with 5 V / 12 V / 18 V / 24 V to max. 1 A, at 5 V, limited to 5 W
• • External connection with 5 V / 12 V / 18 V / 24 V to max. 1 A, at 5 V, limited to 5 W
• • PoE supply:
• • Module with 4 PoE ports each, where the PoE port number can vary between 1 to n ports if desired
• • Output voltage per port between 18 V and 24 V at max. 0.5 A
• • PoE 24 V only for mains operation; for battery operation, the battery voltage minus the waste at the semiconductor lines is provided at the maximum; for supply from a solar energy package, similar boundary conditions apply as for battery operation
• • PoE 18 V is stabilized with a central step-down regulator
• • Setting the maximum current on each 4 × PoE module at the factory

The Setting the output voltages can be over, for example a coding plug done. Likewise, the use of multiple PoE modules possible in an uninterruptible power supply, currently at most 0.5 A per port because of current carrying capacity the Cat5 cable is possible.

The Power supply to the PoE UPS is also optional via one external battery or even a solar pack with integrated Charge control via the Power over Ethernet (PoE) system possible as additional module.

Everyone single load feeder has separate Control and monitoring functions. The terminals can be switched on and off individually. Normally (no disturbance) all consumers are treated equally switched on. For each consumer, the power consumption is monitored and the output voltage measured. In case of permanent overrun the maximum permissible current consumption per consumer the power supply of this consumer is switched off. Another one Switching on the supply for this consumer takes place only after a restart or by a corresponding command via one of the service interfaces (for example 9-pin D-SUB).

The bridging time if the mains power supply fails, approx. 3 h is included 4 occupied PoE ports with max. 0.5 A and used internal and external Power supply connection. The real bridging time However, depends on concrete load conditions.

The Power over Ethernet (PoE) system consists of several modules, in particular a base circuit board with attached GSM modem and 1 or more PoE modules for every 4 PoE ports, where the PoE port number varies between 1 to n ports if desired can, as well as power supply and battery. Optionally can be integrate a router board. All assemblies are designed as a board for open-frame applications. The individual assemblies are shown again in the following scheme, the components marked with a number are separate be listed.

The Local parameterization takes place via a terminal interface. To connect between the computer and the uninterruptible power supply a D-Sub (9 pin) null modem cable is used. about This interface can provide all information about the current operating status and the current values of the parameters the Power over Ethernet (PoE) system.

The Power over Ethernet (PoE) system can be different at configuration selectable events trigger a signaling. The amount of available signaling depends from the device configuration.

By default an output of the event messages takes place via the local serial interface. Additional signaling per SMS or SMTP (mail) are via the integrated GSM modem or the additional Ethernet interfaces possible, although a partial control of the device functions over SMS can be realized.

By the use of an integrated web server is also a parameterization and monitoring via web browser possible. The access on the web server is protected by a password. A user interface is provided, which gives access to all information and commands over the local interface is available. This is also an extension of the signaling option given by http.

• • Steuerung der Stromversorgung der Endverbraucher, sowie Schutz vor Kurzschluß bzw. Überlast an allen Ausgängen
• • Ladung des Akkus sowie Schutz vor Tiefentladung im Notbetrieb
• • Umschaltung zwischen den zwei Betriebsfällen-Netz EIN bzw. AUS
• • Monitorschnittstelle auf dem seriellen Port zur Diagnose und Parametrierung
• • Eingangsspannung DC
• • Akkuspannung
• • Akkustrom
• • Strom an den Ports und Ausgängen
• • Gerätestatus
• • Anzeige der Betriebszustände über LEDs
• • Line-In
• • Betrieb vom Akku
• • Akku defekt
• • für alle PoE-Verbraucher je eine LED „Ausgang OK”
• • Übertragung der Ereignismeldung per SMS

In summary, here are the basic functions of the PoE UPS listed:

• • Control of the power supply of the end user, as well as protection against short circuit or overload at all outputs
• • Charging the battery and protection against over-discharge in emergency mode
• • Switching between the two operating cases-mains ON or OFF
• • Monitor interface on the serial port for diagnostics and parameterization
• • Input voltage DC
• • Battery voltage
• • Battery power
• • Power at the ports and outputs
• • Device status
• • Display of operating states via LEDs
• • Line-in
• • Operation from the battery
• • Defective battery
• • one "OK output" LED for each PoE consumer
• • Transmission of the event message via SMS

• • Übertragung der Ereignismeldung per SMTP (E-Mail)
• • Teilweise Steuerung der Gerätefunktionen per SMS
• • Port EIN/AUS/RESET
• • Abfrage Gerätestatus
• • Parametrierung für die oben aufgeführten Funktionen
• • Übertragung der Statusinformationen über http (embedded Webserver), zwecks Ferndiagnose und Fernparametrierung
• • Schreiben von LOG-Files für die Ereignisse und lesen der LOG-Files über lokale Konsole oder HTTP
• • Einbindung der Temperatursensoren, Ereignishandling und Schwellen für Warnung und Abschaltung
• • Autarke Stromversorgung mit Photovoltaik sowie eine Laderegelung über die Power over Ethernet (PoE)-Anlage

The following additional functions are also realized:

• • Transmission of the event message via SMTP (e-mail)
• • Partial control of device functions via SMS
• • Port ON / OFF / RESET
• • Query device status
• • Parameterization for the functions listed above
• • Transmission of status information via http (embedded web server) for remote diagnostics and remote configuration
• • Writing LOG files for the events and reading the LOG files via local console or HTTP
• • Integration of temperature sensors, event handling and warning and shutdown thresholds
• • Self-sufficient photovoltaic power supply and charge control via the Power over Ethernet (PoE) system

The Power over Ethernet (PoE) system is by combining several Components such as power supply, power distributor, PoE injector, UPS system and a monitoring / control unit, a very space-saving Solution and therefore more versatile in the most diverse local conditions and also saves enormous costs as well Effort in planning and installation.

One second big advantage is the possibility of Remote maintenance through the various integrated communication interfaces, like Ethernet or GSM. This is particularly interesting for outdoor use in areas which are not yet productive in terms of communication technology are developed and where the supply with for example DSL only over Radio stations can be realized, the kilometers from each other stand away. When failure, for example, a wireless router must thus not always a service technician a time and cost intensive Take a path to possibly only the appropriate device to restart again. This results in the power over Ethernet (PoE) system also a huge potential for savings in the area of maintenance costs.

Another advantage is the high configuration availability of the system. The Power over Ethernet (PoE) system can be adapted to a wide variety of requirements and hardware conditions and provides optimum power to the connected end devices.

1

Power over Ethenet module [POE-BG] - 1

2

Power over Ethenet module [POE-BG] - 2

3

RS232 terminal

4

Ethernet

5

external temperature sensor 1

6

external temperature sensor 2

7

power supply external devices

8th

feed 24 VDC from external supply source (eg solar station)

9

monitor (2 × buttons, 4 × LEDs)

10

230 V AC supply

11

SIM card reader GSM

12

antenna GSM

13

Routerboard internally

14

BATTERY Board (Battery voltage, end position, temperature)

15

accumulators 2 × 12 V, 12 Ah

16

Network jacks (Router board internally)

17

power adapter internally

UPS

Uninterruptible power supply

PoE

power over Ethernet

VoIP

Voice over IP

GSM

Global System for Mobile Communications

SMS

Short Message Service

HTTP

hypertext Transfer protocol

SMTP

Simple Mail Transfer Protocol

DSL

Digital Subscriber Line

LED

Light Emitting diode

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102004046401 B4 [0006]

Claims (9)

Power over Ethernet (PoE) system with an uninterruptible power supply of data terminals in data networks and / or communication systems with a distribution element and a power supply, to which a plurality of network devices, in particular communication terminals, can be connected, characterized in that the Power over Ethernet (PoE A system combines a power supply unit, power distribution PoE injector, a monitoring / control unit and an uninterruptible power supply unit into a housing, wherein the uninterruptible power supply unit comprises the components Power over Ethernet (PoE) ports (B), a base circuit board (A) , an internal power supply unit (C) and an internal router board (D). Power over Ethernet (PoE) system according to claim 1, characterized in that a GSM modem and additional Ethernet interfaces (Eth1 to Eth4) are integrated. Power over Ethernet (PoE) system according to claim 1 and 2, characterized in that serial interfaces for direct on-site access to warranty the control and monitoring are provided. Power over Ethernet (PoE) system according to claim 1 to 3, characterized in that one or more power over Ethernet (PoE) ports are provided. Power over Ethernet (PoE) system according to claim 1 to 4, characterized in that the power supply the Power over Ethernet (PoE) system adds an extra external battery. Power over Ethernet (PoE) system according to claim 1 to 4, characterized in that the power supply In addition, a solar pack with integrated charge control having. Power over Ethernet (PoE) system according to claim 1 to 6, characterized in that each individual load branch over has a separate control and monitoring function. Power over Ethernet (PoE) system according to claim 1 to 7, characterized in that the setting of Output voltages done by means of a Kodiersteckers. Power over Ethernet (PoE) system according to claim 1 to 8, characterized in that the housing is designed as a plug-in housing.