EP4042638A1 - Hausgerät mit kommunikativ verbundenen komponenten - Google Patents
Hausgerät mit kommunikativ verbundenen komponentenInfo
- Publication number
- EP4042638A1 EP4042638A1 EP20780184.6A EP20780184A EP4042638A1 EP 4042638 A1 EP4042638 A1 EP 4042638A1 EP 20780184 A EP20780184 A EP 20780184A EP 4042638 A1 EP4042638 A1 EP 4042638A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- communication bus
- component
- communication
- domestic appliance
- appliance
- 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- Withdrawn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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
Definitions
- the invention relates to a domestic appliance with a first and a second component which are communicatively connected to one another.
- a household appliance comprises a first and a second component that are communicatively connected to one another.
- the household appliance can include, for example, an intelligent refrigerator, an autonomous soil cultivation device or a cooking aid.
- the household appliance can comprise an interface by means of which it is connected to a central device.
- the central facility can provide a service, in particular a personalization of a function of the domestic appliance to a predetermined user.
- the household appliance comprises a first and a second component, which each process data.
- the first component can for example comprise a sensor and the second a processing device.
- the components are usually connected to one another by means of a known and widely used communication bus such as USB 1.1.
- a known and widely used communication bus such as USB 1.1.
- advanced applications require high-performance components that require ever higher bandwidths on the communication bus.
- the number of built-in components that exchange data with one another is increasing in many household appliances. In certain situations, the bandwidth of a conventional communication bus can no longer be sufficient to satisfy all communication needs.
- One object of the present invention is to provide an improved domestic appliance whose components can communicate with one another in an improved manner.
- the invention solves this problem by means of the subjects of the independent claims. Subclaims reproduce preferred embodiments.
- a household appliance comprises a first component which is set up to provide data; a second component which is set up to process provided data; and a communication bus between the first and second components.
- the communication bus uses a single twisted pair of wires as a physical medium.
- a high level of interference immunity can thereby be achieved. Signal scattering from the medium into an environment or vice versa can be reduced.
- the physical medium can be easy and inexpensive to manufacture.
- An electrical connection of the physical medium to the components can be inexpensive. Manufacturing costs for the household appliance can be reduced.
- a known driver module can be used for the communication bus, so that the implementation effort can be low.
- the communication bus preferably uses an unshielded wire pair.
- Such media are also available as unshielded twisted pairs (unshielded twisted pairs,
- the communication bus can support full duplex. A first communication from the first to the second component and a second communication from the second to the first component can take place at the same time. In general, the communication bus can also be set up for more than two participants.
- the communication bus can meet an IEEE 802.3 standard. This standard is also known as the Ethernet standard. Its specification is widespread and a large number of components conforming to the specification can be expected.
- the IEEE 802.3 standards include those that are set up for use in the automotive sector, for example on board a motor vehicle. By utilizing such a standard, capabilities or advantages of the communication bus can be used to advantage for the domestic appliance, even if the domestic appliance is not set up for driving in the household.
- the communication bus meets the 802.3cg-2019 standard, which is also known as 10 BASE-T1S.
- a similar embodiment according to the 10 BASE-T1L standard is also possible.
- a clock frequency on the communication medium can be approx. 10 MHz here.
- a transmission speed can be around 10 Mbit / s.
- a particularly inexpensive communication medium can be used. Transmission or interference immunity can be high.
- the communication bus complies with the 802.3bw-2015 standard, which is also known as 100BASE-T1.
- a clock frequency can be approx. 75 MHz, a transmission speed approx. 100 Mbit / s.
- the communication bus complies with the 802.3bp-2016 standard, which is also known as 1000BASE-T1.
- a clock frequency can be approx. 750 MHz, a transmission speed approx. 1000 Mbit.
- the first component can include a camera.
- the camera can be used to scan the surroundings of the household appliance.
- an autonomous floor processing robot can use the camera to navigate, detect an obstacle or create a map of a household.
- another device can also be used, in particular for optical scanning of the surroundings. Such sensors require a high bandwidth in order to transmit the provided image information in real time.
- the second component can include a screen.
- An image to be presented on the screen can also require a large bandwidth for transmission to the screen.
- the bandwidth requirement can be high. Such a requirement can be met by using the transmission technology described.
- the domestic appliance can furthermore comprise an interface for communication with an external device, the interface using a different protocol than the internal communication bus.
- Outwardly directed communication can in particular be handled by means of a wireless interface, in particular according to the WLAN (IEEE 802.11) or Bluetooth (IEEE 801.15) standard.
- the data rates that occur here are usually significantly lower than are required for communication within the domestic appliance.
- a communication bus which comprises a single twisted wire pair as the physical medium, is used for communication between two components of a domestic appliance.
- FIG. 1 shows a domestic appliance with a communication bus
- Figure 2 illustrates a communication bus.
- FIG. 1 shows a system 100 with a household appliance 105 and an external point 110.
- the household appliance 105 is set up for use in a household and can include, for example, a kitchen appliance, a cleaning appliance or a digital assistant.
- the domestic appliance 100 is shown by way of example as the soil cultivation robot driving autonomously. Not all of the elements required or possible for the function of the floor-processing robot are shown in FIG.
- the household appliance 105 comprises a first component 115, which in the present case includes a camera, and a second component 120, which in the present case includes a processing device.
- the camera 115 can be set up to provide individual images or a video data stream.
- the provided images can be in color or in shades of gray.
- the camera 115 is optionally set up to determine a distance to an object.
- the camera 115 can comprise a depth camera, which can comprise either two cameras 115 interconnected according to the stereo principle or an integrated distance sensor.
- camera 115 includes a light source.
- the light source can emit light in a wavelength range imperceptible to the human eye, for example in the infrared range, more preferably in the near infrared range (NIR).
- NIR near infrared range
- the camera 115 can be richly sensitive in this wavelength range.
- the processing device 120 preferably comprises a programmable microcomputer or microcontroller which can be set up to execute a predetermined program in order to control the domestic appliance 105 in at least one aspect.
- the domestic appliance 105 further comprises a storage device 125 for storing information.
- the processing device 120 is connected to the storage device 130 and can be configured to determine a position in an environment or a route to a location on the basis of information scanned by the camera 115 and information stored in the storage device 125 to find a predetermined position.
- the camera 115 is connected to the processing device 120 by means of a communication bus 130.
- the communication bus 130 is used here for the point-to-point connection of the components 115 and 120; In another embodiment, however, more than two components 115, 120 can be communicatively connected to the communication bus 130.
- the processing device 120 can furthermore be set up to control a movement of the domestic appliance 105.
- it can control two electric motors 135, for example, which are each connected to an assigned drive wheel 140.
- a third wheel, together with the two drive wheels 140, can form a triangle on a ground.
- An interface 145 which is preferably set up for wireless communication, can be provided for communication with the external point 115.
- the external location 110 can be set up as a server, in particular in a cloud, and implement a predetermined service.
- the domestic appliance 105 can transmit predetermined information to the external location 110 and the external location 110 can transmit information to the domestic appliance 105 or to another device.
- the external point 115 comprises an in particular wireless interface 150 for communication with the interface 145 of the domestic appliance 105, as well as a processing device 155. Further components, for example a data memory, can also be included in the external point 115.
- data is transmitted from the camera 115 via the communication bus 130 to the processing device 120 and / or in the opposite direction Direction communicated.
- the communication bus 130 will now be described in more detail with reference to FIG.
- FIG. 2 shows a communication bus 130 which extends between a first component 115 and a second component 120 of a domestic appliance 105.
- the communication bus comprises an unshielded pair of twisted wires (unshielded twisted pair, UTP).
- the wires comprise a first wire 210 and a second wire 215 twisted with it. The closer the wires 210, 215 are twisted with one another, the better they can be used for low-interference communication.
- Each core 210, 215 can be designed as a wire or as a stranded wire.
- the wires 210, 215 are shown twisted in a section in the area of the first component 115.
- the wires 210, 215 are regularly placed in a sheath 220, which usually does not leave any longer sections of the wires 210, 215 exposed.
- the sheath 220 is not absolutely necessary and can also be partially or completely omitted in a further embodiment.
- the wires 205, 210 are each connected on the part of the first component 115 and on the part of the second component 120 to a transceiver 225 which is set up to generate or detect defined electrical signals on the medium 105.
- the transceivers 225 preferably process a predetermined part of a predetermined protocol that is used for transmitting data between the first component 115 and the second component 120.
- This part can in particular comprise a data link layer according to the OSI layer model. Services of a higher layer can optionally also be provided, for example the network layer or the transport layer.
- the communication bus 130 is preferably implemented in conformity with one of the Ethernet standards that were specially developed for the transmission of information on board a vehicle, namely 10BASE-T1S, 100BASE-T1 or 1000BASE-T1. Different maximum data transmission speeds can be achieved.
- a simpler physical medium 205 can be used, which can in particular be designed as a twisted two-wire line.
- An arbitration phase of the communication bus 130 can be easier to handle.
- a maximum number of participants on the communication bus 130 can be greater than with USB 1.1. Transmission frequencies on the physical medium 205 can be moderate.
- data transmission between two components that are connected to the communication bus 130 can be simple and secure. Bit errors can be rare and interspersed bit errors can easily be recognized and corrected if necessary.
- the communication bus 130 can be implemented inexpensively and be robust in use.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019215457.3A DE102019215457A1 (de) | 2019-10-09 | 2019-10-09 | Hausgerät mit kommunikativ verbundenen Komponenten |
| PCT/EP2020/076716 WO2021069226A1 (de) | 2019-10-09 | 2020-09-24 | Hausgerät mit kommunikativ verbundenen komponenten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4042638A1 true EP4042638A1 (de) | 2022-08-17 |
Family
ID=72644259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20780184.6A Withdrawn EP4042638A1 (de) | 2019-10-09 | 2020-09-24 | Hausgerät mit kommunikativ verbundenen komponenten |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4042638A1 (de) |
| DE (1) | DE102019215457A1 (de) |
| WO (1) | WO2021069226A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016221362A1 (de) * | 2016-10-28 | 2018-05-03 | Volkswagen Aktiengesellschaft | Verfahren zur kommunikationstechnischen Anbindung von Türkomponenten an eine Komponente die in einer Fahrzeugkarosserie eingebaut ist, sowie Türknoten-Steuergerät und Fahrzeugtür zur Verwendung bei dem Verfahren |
| GB2567944A (en) * | 2017-08-31 | 2019-05-01 | Neato Robotics Inc | Robotic virtual boundaries |
| DE102017218974A1 (de) * | 2017-10-24 | 2019-04-25 | BSH Hausgeräte GmbH | Haushaltsgerät mit elektrisch betreibbarer Komponente |
-
2019
- 2019-10-09 DE DE102019215457.3A patent/DE102019215457A1/de active Pending
-
2020
- 2020-09-24 EP EP20780184.6A patent/EP4042638A1/de not_active Withdrawn
- 2020-09-24 WO PCT/EP2020/076716 patent/WO2021069226A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019215457A1 (de) | 2021-04-15 |
| WO2021069226A1 (de) | 2021-04-15 |
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