EP4420243A1 - Elektrisches gerät und system mit mindestens zwei elektrischen geräten - Google Patents
Elektrisches gerät und system mit mindestens zwei elektrischen gerätenInfo
- Publication number
- EP4420243A1 EP4420243A1 EP22792829.8A EP22792829A EP4420243A1 EP 4420243 A1 EP4420243 A1 EP 4420243A1 EP 22792829 A EP22792829 A EP 22792829A EP 4420243 A1 EP4420243 A1 EP 4420243A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supply line
- electrical
- data
- internal functional
- devices
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0002—Modulated-carrier systems analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
Definitions
- the invention relates to an electrical device that can be supplied with electrical energy via a supply line, the electrical device having an internal functional unit for transmitting data, the internal functional unit being set up to modulate data onto the supply line and/or to receive data from the to demodulate the supply line.
- the invention relates to a system of at least two proposed electrical devices, with a first electrical device having at least a first internal functional unit for modulating data onto the supply line and a second electrical device having at least a second internal functional unit for de-modulating of data from the utility line.
- the electrical devices can exchange data with one another via the system they form, with it advantageously not being necessary for the electrical devices to be connected directly to one another via a supply line. Rather, it is sufficient that the electrical devices that are intended to communicate with one another are connected to a common power grid or that the supply lines form such a common power grid.
- machine tools In the field of machine tools, machine tools are known in which the energy supply can be guaranteed via a public or construction site energy network. Such mains-operated machine tools can be powerful and can be used flexibly, provided that a public or construction site energy network is available. In addition to mains-operated machine tools, cordless machine tools are also increasingly being used on construction sites, where the energy supply is ensured with the help of accumulators (“accumulators”) or batteries. For the purposes of the invention, such machine tools are preferably also referred to as “rechargeable battery-powered or battery-operated machine tools”.
- a recent development in the field of machine tools provides that machine tools should be able to communicate with other devices on a construction site.
- Such a communication capability which is preferably referred to as “connectivity” within the meaning of the invention, can be provided in a particularly simple manner in the case of rechargeable or battery-operated machine tools be, for example, by the accumulators or the batteries are "smart” designed.
- the wording “smart” is understood to mean that smart rechargeable batteries and/or batteries are able to enable the machine tool to which they are connected to be connected to another device.
- the object on which the present invention is based is therefore to provide an electrical device that is able to communicate with other devices, in particular in its environment.
- a technical solution for enabling such connectivity is to be specified, which can be implemented in a particularly simple and uncomplicated manner, for example in the field of machine tools.
- a further object of the invention is to provide a communication system in which two or more electrical devices can communicate with one another.
- an electrical device which can be supplied with electrical energy via a supply line.
- the electrical device has an internal functional unit for transmitting data, the internal functional unit being set up to modulate data onto the supply line and/or to demodulate data from the supply line.
- the electrical device can preferably be connected to a power grid via a supply line.
- a supply line This can be, for example, a construction site network or a public network for the supply of electrical energy (“electricity network”).
- electrical energy network for the supply of electrical energy
- the connection between the electrical device and the power grid does not always have to exist and can also be disconnected, for example if the electrical device is to be used at a different construction site and transported there. Consequently, the proposed electrical device can be supplied with electrical energy via a supply line.
- the proposed electrical device can preferably be connected to a power grid via a supply line, with this connection to the power grid preferably being detachable.
- a mains cable can be used as a supply line, for example, which preferably has a first connector has cker for connection to the electrical device and a second plug for connection to the mains.
- This second connection can be realized, for example, via a plug-socket connection.
- the electrical device preferably has an interface for receiving the first plug of the mains cable.
- this preferably means that the electrical device can have a preferably mechanical interface for receiving a plug of the supply line.
- An essential advantage of the invention is that the mains cable can be a commercially available mains cable without any technical modifications.
- the supply lines have mains plugs that can be connected to interfaces of the electrical devices.
- This connection can be made in particular via a plug connection.
- the electrical devices can preferably obtain the energy required for their operation from a mains supply using the proposed mains cable.
- the plug of the supply line is used in particular to connect the mains cable to the electrical device.
- the electrical device can be a machine tool that is not operated by an accumulator or battery, but can be connected to a public and/or construction site power supply system with a mains cable.
- a supply line can be used for this connection, which in the context of the present invention is also set up to transmit data.
- the data is preferably transmitted via the supply lines by the data to be transmitted being modulated onto the supply lines or demodulated by the supply lines. This modulating or de-modulating of the data is carried out in particular by the internal functional units of the electrical devices.
- the connector preferably includes an electrical connector assembly having contacts.
- the plugs of the supply lines represent wired interfaces, with a socket of the plug having in particular two power supply contacts.
- the contacts can also be referred to as pins within the meaning of the invention, with the terms “pin” and “contact” preferably being used synonymously within the meaning of the invention.
- the pins or the power supply contacts preferably form an electrical connection arrangement of the plug, it being possible for the supply line to be connected to an electrical device that is to be supplied with power via the electrical connection arrangement or via the plug.
- Electrical devices that can be supplied with electrical energy via a power grid are referred to as “mains-operated” within the meaning of the invention.
- Mains-powered electrical devices differ from cordless or battery-powered devices in that they usually have no batteries and/or accumulators (“accumulators”) for supplying electrical energy.
- the invention can be used to create a simple, inexpensive and uncomplicated possibility of upgrading electrical, preferably mains-operated, devices for joint communication with one another.
- This advantage of the invention is achieved in particular by the provision of the at least one internal functional unit, which is set up to modulate data onto and/or demodulate data from a supply line.
- the electrical device can include, for example, an internal functional unit for modulating data onto a supply line.
- the electrical device is advantageously equipped for writing data into the power grid.
- the electrical device can comprise an internal functional unit for de-modulating data from a supply line.
- the electrical device is advantageously equipped for reading data from the power supply.
- the data exchanged between the electrical devices can be, for example, machine-related data such as operating parameters, identifiers, control or reporting commands or signals, position data (e.g. GPS) or operating states such as "on” or "off", without mentioning it to be limited.
- machine-related data such as operating parameters, identifiers, control or reporting commands or signals
- position data e.g. GPS
- operating states such as "on” or "off", without mentioning it to be limited.
- the internal functional unit is set up for writing and/or reading data.
- the internal functional unit is in particular able to enter data into the supply line using information technology, which is referred to as “writing data” or as “modulating” within the meaning of the invention.
- the internal functional unit can preferably also be set up to take or read out data from the supply line using information technology, which is referred to as “reading data” or as “de-modulating” within the meaning of the invention.
- the internal functional unit can preferably establish a connection between a WLAN source and the users of the communication system.
- a connection between the participants of the proposed communication system is generated by the internal functional units, for example between a machine tool and a vacuum cleaner.
- the electrical device is selected from a group comprising: machine tool, vacuum cleaning device, water management device, feed device and/or charging device, without being limited thereto.
- all devices that are used on a construction site can be an electrical device within the meaning of the invention, with the invention of course not being limited to applications in the construction site area. Rather, a system or a network of electrical devices according to the invention can be used in many technical areas.
- the electrical equipment used on a construction site may be machine tools, such as drills, chisels, grinders, cutters and/or slotting machines, or auxiliary equipment used to support the work of the machine tools.
- Such auxiliary devices can be, for example, without being limited to the mentioned vacuum cleaning devices, water management or water recycling devices, propulsion devices and/or charging devices.
- Chargers can be used, for example, on construction sites where, in addition to mains-operated, cordless or battery-operated machine tools or electrical devices are used. The chargers can then advantageously be used to charge the accumulators or batteries of these battery-operated or mains-operated electrical devices or machine tools.
- the invention in a second aspect, relates to a system made up of at least two proposed electrical devices, it being possible for the electrical devices to be supplied with electrical energy via a supply line.
- a first electrical device has at least one first internal functional unit for modulating data onto the supply line
- a second electrical device has at least one second internal functional unit for demodulating data from the supply line.
- the electrical devices can exchange data with one another via the system they form.
- the at least two electrical devices it is advantageously not necessary for the at least two electrical devices to be connected directly to one another via a supply line; instead, it is sufficient for the electrical devices that are to communicate with one another to be connected to a common power supply system or that the supply lines between the electrical devices form such a common power supply system.
- the electrical devices that are intended to communicate with one another are preferably components of a common power grid, with the common power grid preferably supplying electrical energy to the electrical devices of the proposed system.
- the proposed system is also referred to as “communication system”, “communication network” or “communication network”.
- the communication system can, of course, comprise more than two electrical devices, which can be different electrical devices.
- the communication system can include, for example, various machine tools, one or more vacuum cleaners and various charging devices, with the electrical devices each having at least one internal functional unit.
- the internal functional units are preferably designed both for reading and for writing data. However, within the meaning of the invention, it can also be preferred that the internal functional units of individual electrical devices of the proposed communication system are designed only for reading or only for writing.
- connectivity of the electrical devices involved which are preferably mains-operated, can be made possible.
- the internal functional units can preferably be essentially the same or essentially similar functional units. However, it can also be preferred that the internal functional units are neither the same nor similar, as long as they are suitable for modulating and/or demodulating data in or from the supply lines.
- the shared power grid can be, for example, a construction site grid or a public grid for the supply of electrical energy. It represents a significant advantage of the invention that a communication option can be provided between electrical, mains-operated devices that do not themselves have to be directly connected to one another via a data or power cable.
- the proposed system is preferably also referred to as “network” or “network” within the meaning of the invention, with the terms mentioned being used synonymously.
- An essential advantage of the invention is that the supply or power lines present between the participating electrical devices, which are preferably mains-operated, are used for data exchange. This preferably requires no technical changes to the supply lines or cables.
- the electrical devices involved in the proposed communication network include internal functional units for the transmission of data, wherein the internal functional units are set up to modulate data onto the supply line and/or to demodulate data from the supply line.
- the first electrical device has at least one first internal functional unit for modulating data onto the supply line and a second electrical device has at least one second internal functional unit for demodulating data from the supply line.
- the electrical devices that form the proposed system, network, or network can each have a further internal functional unit that can perform the other function.
- a first electrical device includes a first internal functional unit for writing data to the power grid
- this first electrical device may also include a further internal functional unit for reading data from the power grid, i.e. an internal functional unit for de-modulating data from the supply line.
- a second electrical device which includes an internal functional unit for reading data from the power grid, can also include a further internal functional unit for writing data to the power grid, i.e. an internal functional unit for modulating data onto the supply line.
- the first internal functional unit of the first electrical device in addition to writing or modulating data into the supply line or into the power grid, also reads or de-modulates data from the supply line or from the power grid is set up.
- the second internal functional unit of the second electrical device in addition to reading or demodulating data from the supply line or from the power grid, also writes or modulates data into the supply line or .is set up in the mains.
- the communication system described so far is preferably referred to as a wired communication system, network or network. It is preferred within the meaning of the invention that the wired communication system, network or network is based on a common power grid, the common power grid at least the at least two electrical devices that are part of the proposed wired communication onsystems are supplied with electrical energy.
- the power grid can of course also supply other electrical devices with electrical energy.
- the proposed communication system can preferably include the common power grid, which supplies at least the at least two electrical devices involved with electrical energy or power. In other words, the common power grid to which the at least two electrical devices of the proposed communication system are connected with supply lines can be part of the proposed communication system.
- the proposed communication system can advantageously form a local energy and communication network in which data is exchanged between the electrical devices, which are preferably mains-operated, with the aid of internal functional units of the electrical devices and the supply lines between the electrical devices.
- the communication system preferably represents a carrier frequency system or a carrier frequency device, which is implemented using the internal functional units.
- the data or data signals are preferably modulated up or down in the high-frequency range, i.e. in a range of preferably 100 to 150 kHz, particularly preferably around 120 kHz.
- the communication system has a range of up to 1,000 m, preferably up to 600 m and most preferably up to 400 m /s, preferably up to 2,000 Mbit/s can be achieved.
- the internal functional units of the electrical devices involved in the communication system are able to modulate data in the high-frequency range into the power grid or the supply line and/or the data in the high-frequency range from the power grid or from the to demodulate the supply line.
- the modulated data which are fed into the underlying power grid by the internal functional units of the electrical devices, preferably represent small, harmless disturbances within the power grid or within the local energy and communication network. These disturbances are advantageously within a tolerance range of electromagnetic compatibility, so that they are harmless to humans and also do not interfere or interfere with other types of communication and communication protocols used in the vicinity of the local energy and communication network. In particular, the power supply of the electrical devices involved is not affected by the interference.
- the internal functional units can preferably be permanently integrated in the electrical devices of the proposed communication system.
- the internal functional units can also represent replaceable modules that can be temporarily releasably attached to the electrical device.
- the internal functional units can be exchanged particularly easily, for example in the event that an internal functional unit is broken or has to be removed due to the passage of time or for other purposes.
- the system has a gateway for wireless communication.
- the gateway can preferably be set up to communicate with mobile communication devices and/or a cloud.
- the provision of the gateway represents an extension of the previously described, wired communication system.
- the communication system, which has a gateway is preferably referred to as “extended communication system, network or network” within the meaning of the invention.
- extended communication system, network or network within the meaning of the invention.
- a wireless communication option with other electrical devices or a cloud can be created, so that data can be exchanged not only wired between the participants of the proposed wired communication system, but advantageously also wirelessly with mobile communication devices and / or a cloud.
- the mobile communication devices outside of the wired communication system can be, for example, mobile phones, smartphones, tablet PCs, laptops, notebooks, palm PCs or the like, without being limited to them.
- An essential advantage of the communication system expanded by the gateway is that the preferably mains-operated electrical devices of the wired communication network can be accessed externally with the aid of the gateway. While the electrical devices involved can communicate with each other with the help of the internal functional units via the supply lines ("wired communication system, network or network"), the gateway can be used to access the electrical devices from outside, i.e. remotely ("extended communications system, network or network”). As a result, for example, machine-related data such as operating times, maintenance displays, operating or fault parameters, operating states, etc. can be queried from the outside or transmitted by the electrical devices to the outside world that is not part of the wired communication network.
- the external devices or the cloud which are connected to the electrical devices of the communication system via the gateway tems want to communicate, do not share a power or supply connection with the electrical devices and the external devices or the cloud that want to communicate with the electrical devices of the communication system via the gateway also do not have to be part of the common power grid on which the proposed communication network is based .
- a further advantage of the communication system expanded by a gateway is that the gateway can be exchanged in a particularly simple and uncomplicated manner if a different wireless communication standard is to be used for external communication with the electrical devices.
- future-oriented, new transmission technologies can be implemented particularly easily in existing communication systems or networks without having to replace all electrical devices or carry out complex conversion work on the electrical devices.
- the gateway is set up to communicate via Bluetooth, in particular low energy Bluetooth (BLE).
- FIG. 1 shows a preferred embodiment of a proposed communication system 100.
- the proposed communication system 100 has at least two electrical devices 10, which can be, for example, machine tools, vacuum cleaners, chargers, auxiliary devices or the like.
- the electrical devices 10 of the communication system 100 are connected to supply lines 12, with the supply lines 12 forming a common power grid on which the proposed communication system 100 is based.
- the supply lines 12 are preferably designed to supply the electrical devices 10 with electrical energy, i.e. current.
- the supply lines 12 can preferably belong to a public or a construction site power supply system.
- the supply lines 12 preferably have plugs or mains plugs that can be accommodated by interfaces 16 of the electrical devices 10 .
- the interfaces 16 are preferably mechanical interfaces which, in particular, enable a plug-in connection to be formed between the plug and the interface 16 of the electrical device 10 .
- the electrical devices 10 of the communication system 100 also have internal functional units 14 with which the electrical devices 10 can exchange data with one another.
- the exchange of data between the electrical devices 10 takes place in particular by wire or cable via the supply lines 12, which preferably form a common power supply system between the electrical devices 10 that are intended to communicate with one another.
- the communication system 100 can have a gateway 50 in a preferred embodiment.
- a communication link between the gateway 50 and the electrical devices 10 or between the electrical devices 10 and the outside world can be provided with the aid of the gateway 50 .
- the electrical devices 10 can communicate with the help of the gateway 50, for example with a cloud or with mobile communication devices.
- This communication connection with the outside world, ie the world outside of the preferably wired communication network 100, enables in particular external access to the electrical devices 10, so that, for example, machine-related data such as device runtimes, maintenance requirements, error messages or the like can be read out by external devices.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21203145.4A EP4167494A1 (de) | 2021-10-18 | 2021-10-18 | Elektrisches gerät und system mit mindestens zwei elektrischen geräten |
| PCT/EP2022/077555 WO2023066653A1 (de) | 2021-10-18 | 2022-10-04 | Elektrisches gerät und system mit mindestens zwei elektrischen geräten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4420243A1 true EP4420243A1 (de) | 2024-08-28 |
Family
ID=78598677
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21203145.4A Withdrawn EP4167494A1 (de) | 2021-10-18 | 2021-10-18 | Elektrisches gerät und system mit mindestens zwei elektrischen geräten |
| EP22792829.8A Withdrawn EP4420243A1 (de) | 2021-10-18 | 2022-10-04 | Elektrisches gerät und system mit mindestens zwei elektrischen geräten |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21203145.4A Withdrawn EP4167494A1 (de) | 2021-10-18 | 2021-10-18 | Elektrisches gerät und system mit mindestens zwei elektrischen geräten |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20240414036A1 (de) |
| EP (2) | EP4167494A1 (de) |
| WO (1) | WO2023066653A1 (de) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8364326B2 (en) * | 2011-02-22 | 2013-01-29 | Asoka Usa Corporation | Set of sensor units for communication enabled for streaming media delivery with monitoring and control of power usage of connected appliances |
| CN102945029B (zh) * | 2012-10-31 | 2014-12-10 | 鸿富锦精密工业(深圳)有限公司 | 智能网关、智能家居系统及家电设备的智能控制方法 |
| US9614585B2 (en) * | 2013-01-30 | 2017-04-04 | Qualcomm Incorporated | Switching communication devices between different communication media |
| US9466198B2 (en) * | 2013-02-22 | 2016-10-11 | Milwaukee Electric Tool Corporation | Wireless tracking of power tools and related devices |
| US9465059B2 (en) * | 2013-03-28 | 2016-10-11 | Sony Corporation | Method, sensor and system for analyzing appliances in a power line network |
| WO2015008706A1 (ja) * | 2013-07-19 | 2015-01-22 | ローム株式会社 | 電力管理システム、接続中継部 |
| JP6391964B2 (ja) * | 2014-03-31 | 2018-09-19 | 株式会社フジタ | 通信システム |
| US9158325B1 (en) * | 2014-04-22 | 2015-10-13 | Infineon Technologies Ag | Cable quality detection and power consumer devices |
| US10447068B2 (en) * | 2017-04-03 | 2019-10-15 | Nxp B.V. | Power management circuit |
| CN212183141U (zh) * | 2017-09-27 | 2020-12-18 | 标柏科技有限公司 | 用于物联网的电力线联网式usb电源适配器 |
| JP2019144790A (ja) * | 2018-02-20 | 2019-08-29 | 富士ゼロックス株式会社 | 情報処理装置及びプログラム |
| US10790997B2 (en) * | 2019-01-23 | 2020-09-29 | Cisco Technology, Inc. | Transmission of pulse power and data in a communications network |
-
2021
- 2021-10-18 EP EP21203145.4A patent/EP4167494A1/de not_active Withdrawn
-
2022
- 2022-10-04 EP EP22792829.8A patent/EP4420243A1/de not_active Withdrawn
- 2022-10-04 WO PCT/EP2022/077555 patent/WO2023066653A1/de not_active Ceased
- 2022-10-04 US US18/702,110 patent/US20240414036A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20240414036A1 (en) | 2024-12-12 |
| WO2023066653A1 (de) | 2023-04-27 |
| EP4167494A1 (de) | 2023-04-19 |
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