CONTROL DEVICE, COMPONENTS AND MOBILE SERVICE DEVICE FOR AN HVAC SYSTEM

Description

TECHNICAL FIELD

[0001] The invention relates to a control device for an HVAC system, to a mobile service device for configuring an HVAC system, and to a method for configuring an HVAC system. STATE OF THE ART

[0002] HVAC systems (HVAC: Heating, Ventilation and Air Conditioning) comprise several consumers arranged in branches or lines, which are supplied with a liquid or gaseous fluid. To achieve the desired distribution of the fluid to the consumers, balancing or regulating and balancing devices are provided, for example, adjustable actuators, especially valves, whereby the flow through the respective consumers is adjusted by varying the opening degrees or valve positions. The installation of HVAC systems requires not only the arrangement of the consumers with the associated lines, brackets, etc., but also the needs-based installation of balancing or regulating and balancing devices, which must meet individual requirements at different locations.Depending on the requirements, for example, a control and balancing device for a central office may need completely different parameters than a control and balancing device for an open-plan office. In other HVAC applications, several control and balancing devices configured as slaves are assigned to a control and balancing device configured as a master.

[0003] Even in such configurations, the control and adjustment devices must have individual parameter settings and, in addition, correct assignment of the slaves to the master must be ensured.

[0004] Certain individual parameters of the control and balancing devices in an HVAC system must be adjusted directly during installation. Today, individual parameters of the control and balancing devices are adjusted, for example, by turning a potentiometer position with a screwdriver or by connecting and operating a service tool via a service socket.

[0005] US 7,898,147 shows an electronically configurable actuator. The actuator comprises an electrically controllable mechanical transducer, a wireless interface for receiving data relating to the operation of the actuator and at least one external device, a setting data module for storing the data, a wired interface for managing external devices based on the data, and a control module for controlling the mechanical transducer based on the data. The wireless interface is configured for the transmission of radio-based, optical, or acoustic signals, for example, according to a standard such as Bluetooth, IrDA, IEEE 802.11 (WLAN), HomeRF, etc., or according to a mobile radio technology. Data can be created on a portable computer, a PDS (Personal Digital Assistant), or a mobile phone and transmitted to the actuator via the wireless interface.

[0006] US 6,667,690 shows the configuration of a communication network of an HVAC system, in particular the identification of an HVAC device of an HVAC system and the assignment of a network address. The HVAC devices each have an RFID transponder, the identification of which is transmitted to a technician's portable device if the device is brought within transmission range of the RFID transponder. Based on a room plan, the technician selects the location of the HVAC device on the portable device, whereupon the portable device determines a network address for this location, for example, based on a database. The identification of the RFID transponder and the network address are preferably transmitted to a communication device via an infrared interface.

[0007] US 2010 / 097238 deals with the configuration of a building automation system comprising garage doors, roller shutters, etc. Each drive is identified by an identifier stored in a memory, which is duplicated on a visible label attached to the drive. Likewise, a transmitter to be paired has a label on which an identifier is duplicated. A configuration device acquires an identifier from a drive label and from a transmitter label. The configuration device transmits the transmitter's identifier to the drive to establish or break a pairing. PRESENTATION OF THE INVENTION

[0008] It is an object of the present invention to propose a control device for an HVAC system, a mobile service device for configuring an HVAC system, a method for configuring an HVAC system, and a drive for an HVAC system, which avoid or reduce at least certain disadvantages of the prior art. In particular, it is an object of the present invention to propose a control device for an HVAC system, a mobile service device for configuring an HVAC system, a method for configuring an HVAC system, and a drive for an HVAC system, which enable the configuration of the HVAC system to be carried out before the power supply to the HVAC system is switched on.

[0009] According to the present invention, these objects are achieved by the elements of the independent claims. Further advantageous embodiments are also apparent from the dependent claims and the description.

[0010] A control device for an HVAC system, which control device has a communication module for communication with one or more components of the HVAC system, comprises: a passive NFC transponder configured to receive and store a unique identifier of each of the one or more components from a mobile service device before a power supply to the control device is switched on, and a control module configured to access stored identifiers after a power supply to the control device is switched on and to transmit control signals to components determined by the identifiers via the communication module. The configuration of the drives and control device of an HVAC system can take place at a time when the devices in question are not yet connected to a power supply.This avoids the need for plumbing technicians to visit these devices multiple times during the installation of an HVAC system, and allows electricians unfamiliar with HVAC system configuration to concentrate on the electrical wiring for connecting the HVAC system to its power supply without requiring knowledge of the layout, connection, and configuration of HVAC system components. The NFC transponder is mounted, for example, in or on a housing of the control device. In one variant, the NFC transponder is mounted separately from the housing of the control device and connected to the control device via a cable.

[0011] It's important to note that the term "configuration" refers to the configuration of the HVAC system's drives and control devices before a power supply is applied. In contrast, the term "communication" refers to the transmission of control signals, etc., between the control devices and the HVAC system's drives after a power supply is applied.

[0012] In one embodiment of the control device, the passive NFC transponder or the control module is configured to receive and store identifiers or transmit control signals relating to a sensor device of the HVAC system, a drive of the HVAC system, a control device of the HVAC system, a room control unit of the HVAC system, a gateway for communication between different communication networks of the HVAC system, an actuator of the HVAC system, and / or an interface device for input and output signals of the HVAC system. A control device of the HVAC system is configured, for example, to determine a control signal for any component of the HVAC system based on any input signal. A gateway for communication between different communication networks of the HVAC system is configured, for example, to enable communication between different protocols.An actuator of the HVAC system includes, for example, a fan, a cooling unit, a heating unit, etc. An interface device for input and output signals of the HVAC system is, for example, configured to record and log operating values ​​of the HVAC system, etc.

[0013] In one embodiment of the control device, the control module is configured to transmit control signals to components determined by the identifiers after a power supply to the control device is switched on. These signals are used to query whether the respective component is available. This makes it possible to automatically check whether the components are correctly installed.

[0014] In one embodiment of the control device, the passive NFC transponder is configured to receive and store component parameters associated with the identifiers, and the control module is configured to transmit control signals corresponding to the component parameters to components determined by the identifiers. The component parameters can be stored on the control device and transmitted to the components as needed.

[0015] In one embodiment of the control device, the control module is configured to transmit control signals to components, with which component parameters of the components are queried. The control module is configured to transmit control signals corresponding to the component parameters to components determined by the identifiers. The component parameters, such as a room designation or a maximum flow, can be stored on the component during configuration, and when the HVAC system is commissioned, the control unit can retrieve these component parameters as needed.

[0016] In one embodiment of the control device, the control module is configured to create a log containing the switch-on time of a power supply of the control device, a query time, and the availability status of components and / or component parameters, indicating whether these are stored on the NFC transponder or have been queried from a component. The log can be created when the HVAC system is commissioned and can contain all the necessary information to verify whether the installation of the components was carried out as planned.

[0017] In one embodiment of the control device, the control module is configured to perform one or more of the following steps: transmitting the protocol to a receiving device if a communication connection to the receiving device is available, and storing the protocol on the NFC transponder. The protocol can be transmitted to a receiving device or stored on the NFC transponder, for example, to support service work on the HVAC system. The receiving device can be arranged inside or outside the HVAC system and, for example, comprise a mobile device of a project manager who monitors the installation of the HVAC system. Alternatively or additionally, a receiving device can be arranged in a control center in which the installation of the HVAC system is monitored.

[0018] In one embodiment of the control device, the control module is configured to detect operating values ​​of the HVAC system from the components determined by the identifiers and to transmit control signals to the relevant components in accordance with the detected operating values.

[0019] In one embodiment of the control device, it comprises one or more of the following components: a sensor device of the HVAC system, a drive of the HVAC system, a control device of the HVAC system, a room control unit of the HVAC system, a gateway for communication between different communication networks of the HVAC system, an actuator of the HVAC system and an interface device for input and output signals of the HVAC system.

[0020] In addition to a control device for an HVAC system, the invention relates to a mobile service device for configuring a control device of an HVAC system and one or more components of the HVAC system before switching on a power supply. The mobile service device comprises: a control module configured to control an active NFC module of the mobile service device such that an identifier stored in a passive NFC transponder is read from the one or more components, and one or more read identifiers are written to a passive NFC transponder of the control device.

[0021] In one embodiment of the mobile service device, the control module is configured such that a user interface of the mobile service device displays identifiers of the components of the HVAC system and receives component parameters of the components associated therewith from a user of the mobile service device, wherein the control module is further configured to control the active NFC module such that component parameters are written to passive transponders of components of the HVAC system and / or to a passive transponder of a control device of the HVAC system.

[0022] In one embodiment of the mobile service device, the control module is configured to combine a plurality of identifiers of the components into a group, to assign available group and component parameters to components of the group, and to control the NFC module such that the group is written to the NFC transponder of a control device of the HVAC system.

[0023] In one embodiment of the mobile service device, the control module is configured to create a protocol comprising one or more of the following contents: received identifiers of components of the HVAC system, component parameters associated with the identifiers, groups with identifiers and group and / or component parameters associated with the identifiers, identification of an operator of the service device, and time stamps associated with said contents, wherein the control module is configured in particular to transmit the created protocol to a receiving device.

[0024] In addition to a control device and a mobile service device for an HVAC system, the invention relates to a method for configuring a control device of an HVAC system and one or more components of the HVAC system before switching on a power supply. The method comprises the following steps: reading an identifier from a passive NFC transponder of the one or more components using an active NFC module, and writing the read identifiers to a passive NFC transponder of the control device using the active NFC module.

[0025] In one embodiment of the method, identifiers are displayed on a user interface and associated component parameters are captured, wherein captured component parameters are written with the active NFC module to a passive NFC transponder of the one or more components and / or to the passive NFC transponder of the control device.

[0026] In one embodiment of the method, a protocol is created which comprises read identifiers of the one or more components, component parameters associated with the identifiers, and / or time stamps associated with these contents, wherein the protocol is transmitted in particular to a receiving device.

[0027] In addition to a control device, a mobile service device for an HVAC system and a method for configuring an HVAC system, the invention relates to a computer program product comprising a computer-readable storage medium with program code stored thereon, which is configured to control one or more processors of a mobile service device having an active NFC module in such a way that: an identifier is read from a passive NFC transponder of one or more components of an HVAC system using the active NFC module, and identifiers read out using the active NFC module are written to a passive NFC transponder of a control device of the HVAC system.

[0028] In addition to a control device, a mobile service device for an HVAC system, a method for configuring an HVAC system, and a computer program product, the invention relates to a drive for an HVAC system, which has an actuator for an actuator of the HVAC system. The drive further comprises: a passive NFC transponder configured to transmit a unique identifier to a mobile service device before a power supply to the drive is switched on, and to receive and store one or more drive parameters from the mobile service device, and a control module configured to control the actuator after a power supply to the drive is switched on, taking into account the one or more stored drive parameters.

[0029] In one embodiment of the drive, it comprises a communication module for communication with a control device of the HVAC system and the control module is configured to receive control signals for controlling the actuator via the communication module after switching on a power supply of the drive and to carry out the control of the actuator.

[0030] In one embodiment of the drive, the control module is configured to transmit a confirmation to the control device after switching on a power supply of the drive and upon receipt via the communication module of a control signal from a control device with which the availability of the drive is checked.

[0031] In one embodiment of the drive, the control module is configured to transmit the one or more drive parameters to the control device upon receipt via the communication module of a control signal from a control device with which the one or more drive parameters are queried.

[0032] In one embodiment of the drive, the control module is configured to detect operating values ​​of the HVAC system via a sensor interface and to transmit these operating values ​​to a control device via the communication interface.

[0033] In one embodiment of the drive, the NFC transponder has several differently arranged transponder antennas. The transponder antennas are preferably mounted on different parts of a housing of the drive in such a way that the interaction between the active NFC module of the mobile service device and the NFC transponder is ensured for different positions of the mobile service device relative to the drive.

[0034] In one embodiment of the drive, the NFC transponder has two transponder antennas which are mounted on or in the housing of the drive in such a way that at least one of the two transponder antennas remains freely accessible after installation of the drive, in particular on a side of the housing of the drive facing away from a wall or ceiling.

[0035] In one embodiment of the drive, the passive NFC transponder is configured to receive and store drive parameters from multiple drives of the HVAC system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The invention is explained below with reference to figures that merely represent exemplary embodiments. They show: Fig. 1 schematically shows a control device of an HVAC system; Fig. 2 schematically shows a mobile service device for configuring an HVAC system; Fig. 3 schematically shows a drive with a passive NFC transponder which is located within the effective range of an active NFC module of a mobile service device; Fig. 4 schematically shows a control device with a passive NFC transponder which is located within the effective range of an active NFC module of a mobile service device; Fig. 5 schematically shows an installation plan for drives and a control device of an HVAC system; Fig. 6 schematically shows a flow chart with possible steps for configuring an HVAC system; and Fig. 7 schematically shows a drive with a passive NFC transponder and several transponder antennas. WAY(S) OF CARRYING OUT THE INVENTION

[0037] Figure 1 shows schematically a control device 3 of an HVAC system 5 and several components of the HVAC system 5. The components are shown in Figure 1In the example shown, they are designed as drives 1, 1', 1".

[0038] The HVAC system 5 includes a fluid transport system with water pipes or air ducts through which liquid or gaseous fluid is transported. Figure 1 The control device 3 shown and the drives 1, 1', 1" are configured for the operation of such an HVAC system 5, wherein in particular HVAC operating values ​​such as flow, temperature, etc. are recorded and processed on the control device 3 in order to control the drives 1, 1', 1".

[0039] In Figure 1 For a better overview, only reference symbols for the drive with reference symbol 1 are shown. For the drives with reference symbols 1' and 1", only one of the most important reference symbols is shown. Figure 1The schematically illustrated components of the drives 1, 1', 1" are shown below for the drive with the reference number 1, but apply accordingly to the drives with the reference numbers 1' and 1". In the following, the term "the drives 1" always refers to the Figure 1 The three drives shown are designated by reference numerals 1, 1', 1".

[0040] In Figure 1 In the example shown, three drives 1 are shown. However, the invention relates to any number of drives 1.

[0041] The control device 3 and the drives 1 have communication modules 33, 13. The communication modules 33, 13 are connected to one another via a communication medium and configured to transmit control signals between the control device 3 and the drives 1. The communication medium includes, for example, cables such as a Belimo MP-Bus cable, radio-based media such as GSM or WLAN (GSM: Global System for Mobile Communication, WLAN: Wireless Local Area Network), optical data connections, etc. The communication modules and the communication medium are configured in particular according to one or more of the following standards: Belimo MP-Bus, LonWorks, Modbus RTU, EIB / Konnex, BACnet and / or Profibus DP.The control signals define functions which are required for the operation of the HVAC system 5, for example functions with which the control device 3 can transmit a control signal for setting a drive position to the drives 1 or the drives 1 can transmit a status signal about the set position to the control device 3.

[0042] As in Figure 1 As shown schematically, the control device 3 and the drives 1 have control modules 35, 15. The control modules 35, 15 comprise, for example, microprocessors and programs executable thereon, ASICs (ASIC: Application-specific integrated circuit) or other electronic circuits, with which the functions required for the operation of the control device 3 and the operation of the drives 1, which are explained in detail below, are enabled. As in Figure 1As shown schematically, the control module 35, 15 and the HVAC interface 33, 13 of the control device 3 and the drives 1 are each accommodated in a housing 30, 10.

[0043] In one embodiment, the control device 3 comprises a fluid connection 322, which is designed for connection to the fluid transport system of the HVAC system 5. The fluid connection 322 is designed, for example, as a water pipe or air duct, the two ends of which can be connected to further water pipes or air ducts of the HVAC system 5. The fluid connection 322 can be attached to the housing 30 of the control device 3, which together form a Figure 1 form a unit shown in dashed lines. As in Figure 1As shown, the fluid connection 322 includes a fluid sensor 321, which measures, for example, the flow rate, temperature, etc. of the fluid. The fluid sensor 321 is connected via a signal line to a sensor interface 32 of the control device 3. The sensor interface 32 is attached, for example, to the housing 30 of the control device 3.

[0044] In one embodiment, a drive 1 comprises a fluid connection 112, which is designed for connection to the fluid transport system of the HVAC system 5. The fluid connection 112 is designed, for example, as a water pipe or air duct, the two ends of which can be connected to further water pipes or air ducts of the HVAC system 5. The fluid connection 112 can be attached to the housing 10 of the drive 1, so that the housing 10 and the fluid connection 112 together form a Figure 1 form a unit shown in dashed lines. As in Figure 1As shown, the fluid connection 112 comprises an actuator 111, with which, in particular, the flow rate of the fluid is influenced. The actuator 111 can be designed as a water valve or an air flap. The actuator 111 is operatively connected to an actuator 11 of the drive 1. The actuator 11 is housed, for example, in the housing 10 of the drive 1. The actuator 11 comprises a motor, an electric motor, an oil pump, etc., with which a mechanical force is generated in order to move the actuator 111 arranged in the fluid connection 112 into a required position.

[0045] In one embodiment, the actuators 1 include a sensor interface 12, which is arranged, for example, on the housing 10 of the actuators 1. A sensor 121 can be connected to the sensor interface 12 via a signal line in order to record operating values ​​of the HVAC system 5, such as temperature, flow rate, etc. of the HVAC system 5.

[0046] As in Figure 1 As shown schematically, in the control device 3, the control module 35 is connected to the communication module 33 and the sensor interface 32. Accordingly, in the drives 1, the control module 15 is connected to the communication module 13, the actuator 11, and the sensor interface 12.

[0047] As in Figure 1As shown schematically, the control device 3 and the drives 1 comprise passive NFC transponders 34, 14. The passive NFC transponders 34, 14 are designed, for example, as passive RFID tags according to ISO 14443 or ISO 15693. The passive NFC transponders comprise, in particular, at least one transponder antenna, which can be attached to or in the housing 30, 10 of the control device and the drives 1, as well as electronic circuits such as, in particular, a non-volatile data memory. With an active NFC module, data can be stored on and read from the passive NFC transponder, wherein the electronic circuits of the passive NFC transponder are supplied with energy by the active NFC module via inductive coupling during reading and writing. The data stored in the data memory of the passive NFC transponder is retained after writing, even without a power supply.

[0048] The passive NFC transponder 14 of a drive 1 is configured to transmit a unique identifier 141 to a mobile service device 2, shown in Figure 2 and described further below, before the power supply of the drive 1 is switched on, and to receive and store one or more drive parameters from the mobile service device 2. The unique identifier can, for example, comprise a serial number of the drive 1. The drive parameters, which are described further below, can, for example, comprise a maximum flow, a room designation, etc.

[0049] The control module 15 is configured to receive control signals for controlling the actuator 11 via the communication module 13 after a power supply of the actuator 1 has been switched on and to control the actuator taking into account one or more actuator parameters, for example taking into account a maximum flow.

[0050] The NFC transponder 34 of the control device 3 is configured to be read from a Figure 2 The mobile service device 2, shown and described further below, is used to receive and store unique identifiers 341 of the drives 1. The mobile service device has, in particular, an active NFC module 24, which writes the unique identifiers 341 onto the NFC transponder 34 of the control device 3.

[0051] The control module 35 of the control device 3 is configured to access stored identifiers 341, 341', 341" after switching on a power supply of the control device 3 and to transmit control signals to components determined by the identifiers via the communication module 33. As in Figure 1 As shown, the control module 35 is connected to the NFC transponder via a signal line in order to read the identifiers 341, 341', 341" stored in the NFC transponder.

[0052] When a power supply of the control device 3 is switched on, the communication module 33 is configured on the basis of the stored identifiers 341, 341', 341" in such a way that communication is possible with drives 1 that are connected to the communication module 33 via a communication medium.

[0053] When installing an HVAC system 5, a phased approach is taken for reasons of efficiency and quality. For example, in a first phase, specialized specialists install the water pipes or ventilation ducts of the HVAC system 5. In a second phase, control devices and drives are installed with the help of other specialized specialists. In a third phase, an electrical power supply for the HVAC system 5 is installed with the help of other specialized specialists. And in a fourth phase, for example, the specialists from the second phase configure and commission the HVAC system 5. In this case, the specialists must revisit each of the control devices and drives to make adjustments that could not be made in the second phase due to a lack of power supply.

[0054] For the control device 3 and the drives 1 according to Figure 1All required configurations can be completed in the second stage by first reading the identifiers of the drives 1 and writing the drive parameters to the NFC transponder 14, and then writing the read identifiers to the NFC transponder of the control device 3. If necessary, additional configuration data is written to the NFC transponders of the control device 3 and the drives 1. This allows specialized personnel to complete all work requiring the individual control devices and drives of the HVAC system 5 in the second stage. This eliminates the need to locate the control devices and drives in the fourth stage during commissioning of the HVAC system 5. This improves the efficiency and quality of HVAC system installation.

[0055] Figure 2shows a mobile service device 2 for configuring a control device 3 of an HVAC system 5 and one or more components of the HVAC system 5 before switching on a power supply. The mobile service device 2 is shown below in the context of components embodied as drives 1. The mobile service device 2 comprises a control module 25, which is configured to control an active NFC module 24 of the mobile service device 2 such that an identifier stored in a passive NFC transponder is read from one or more drives 1, and one or more read identifiers are written to a passive NFC transponder of the control device 3. As shown in Figure 2As shown schematically, the mobile service device comprises a user interface 26 with a touchscreen, a display with a keyboard, etc. The user interface is configured to display identifiers and drive parameters as well as to receive values ​​for drive parameters. In one embodiment, the mobile service device 2 comprises a suitably programmed mobile phone, smartphone, etc. with an active NFC module, which is powered by the battery of the respective device.

[0056] Figure 3 schematically shows a mobile service device 2, wherein the active NFC module interacts with the NFC transponder 14 of a drive 1 of an HVAC system 5 via the active connection 201, in particular to read out the unique identifier 141 of the drive 1 and to read and write drive parameters.

[0057] Figure 4schematically shows a mobile service device 2, wherein the active NFC module interacts with the NFC transponder 34 of a control device 3 of an HVAC system 5 via the active connection 203, in particular to write identifiers 341, 341', 341" and / or drive parameters onto the NFC transponder 34.

[0058] Figure 5 schematically shows an HVAC system 5, which comprises a control device 3 and four actuators 1, 1', 1", 1‴ in order to supply consumers 4, 4', 4", 4‴ of the HVAC system 5 in the fluid system F with a required fluid flow. During the second stage shown above, the installation and configuration of the actuators 1, 1', 1", 1‴ takes place, whereby the control device 3 and the actuators 1, 1', 1", 1‴ are not yet connected to a power supply.

[0059] As in Figure 5As shown, the skilled worker first installs the first drive 1 in installation step I1. Using the mobile service device 2, the skilled worker records the unique identifier 141 of the drive 1. On the user interface of the mobile service device 2, the skilled worker sets a maximum flow for the drive 1 and assigns it to the identifier 141. The maximum flow in the example is Figure 5 230 l / h. The skilled worker then assigns a room designation to identifier 141. The maximum flow and the room designation are stored on mobile service device 2.

[0060] In the installation steps I2, I3, I4, the skilled worker installs the drives 1', 1", 1", analogously, whereby maximum flows of 200 l / h, 125 l / h and 175 l / h in the example shown are assigned to the identifiers 141', 141", 141‴ together with room designations and stored on the mobile service arrangement 2.

[0061] In installation step I5, the skilled worker installs the control device 3, which, as schematically indicated, has a flow sensor to measure the total flow in the fluid system F through the consumers 4, 4', 4", 4‴. Furthermore, the skilled worker uses the mobile service device to write the identifiers, maximum flows, and room designations collected from the actuators 1, 1', 1", 1‴ onto the NFC transponder of the control device 3.

[0062] This completes the installation work for the skilled worker. A report automatically generated on the mobile service device 2 during the work is automatically transmitted to a receiving device, for example, a project manager coordinating the installation work. Transmission can be made, for example, via a mobile network or any other communication device.

[0063] When reading and writing data to the NFC transponders of the mobile service device 2 or drives 1, the mobile service device 2 only needs to be held against a housing, for example. As soon as an NFC transponder is detected by the mobile service device 2, the reading of the identifiers in the case of a drive or the writing of identifiers in the case of a control device can occur automatically and be acknowledged to the skilled worker with an acoustic signal. The NFC effective range at which an NFC transponder can be detected is a few centimeters, for example, less than 10 cm or less than 4 cm.

[0064] Figure 6shows a schematic flowchart with a sequence of possible steps for configuring a control device 3 of an HVAC system 5 and one or more components of the HVAC system 5 before switching on a power supply. In the example shown, the components are embodied as drives 1. In step S1, the mobile service device 2 detects whether a passive NFC transponder 34, 14 is within the effective range of an active NFC module. In step S2, the active NFC module reads a unique identifier from the passive NFC transponder 34, 14. In step S3, the unique identifier is analyzed, and it is determined whether it is a control device 3 or a drive 1. If it is a drive 1, step S31 is executed. If it is a control device 3, step S32 is executed.In step S31, the unique identifier is displayed on a user interface of the mobile service device 2, and drive parameters of the drive are recorded. After recording the drive parameters, these are optionally written to the NFC transponder of the drive using the active NFC module. After step S31, the method continues with step S1, and it is detected whether a passive NFC transponder 34, 14 is located within the effective range of the active NFC module. After step S3, step S32 is executed if the analysis of the identifier reveals that it is a control device 3. In step S32, identifiers collected after repeated execution of step S31, as well as the correspondingly recorded drive parameters, are written to the passive NFC transponder of the control device 3 using the active NFC module.After step S32, a protocol containing the performed steps is optionally transmitted to a receiving device in step S33. This configures the drives 1 and the control device 3 so that, when a power supply is switched on, the HVAC system 5 can be controlled according to defined specifications. The method is thus concluded in step S34.

[0065] In one variant, before switching on the power supply, the drive parameters can be written to the NFC transponder of the drive 1 in step S31, and in step S32, only the identifiers can be written to the NFC transponder of the control device 3. After switching on the power supply, the drive parameters can be queried from the drives 1 by the control device 3, if necessary.

[0066] In another variant, before switching on a power supply, no drive parameters are written to the NFC transponder of drive 1 in step S31, and in step S32, identifiers and corresponding drive parameters are written to the NFC transponder of control device 3. After switching on a power supply, the drive parameters can be transmitted from control device 3 to drives 1, if necessary.

[0067] Figure 7 shows a housing 10 of a drive 1 with a fluid connection 112 attached thereto. Of the components of the drive 1 described above, Figure 7Only the passive NFC transponder 14 is shown schematically. After connecting the fluid connection 112 to the HVAC system 5, the next step is to bring the mobile service device 2 into the effective range of the NFC transponder 14. Depending on the environment at the installation site, the actuator 1 is not freely accessible from all sides. To ensure the effective connection between the active NFC module of the mobile service device 2 and the NFC transponder 14 of the actuator, several transponder antennas 149, 148 are provided in the actuator 1, which are arranged on different sides of the housing. Figure 7Two transponder antennas 149, 148 are shown, but it is also possible to arrange three or more transponder antennas 149, 148. If the drive 1 is located, for example, in a corner formed by a ceiling and a wall, this ensures that one of the transponder antennas 149, 148 is easily accessible and the operative connection between the active NFC module of the mobile service device 2 and the drive 1 can be easily established. In a similar manner, several transponder antennas are preferably attached to the control device 3 and other components of the HVAC system 5.

[0068] The drive parameters, as described above, refer to one or more of the following readable and / or writable parameters: Communication address of the drive such as an MP-Bus address etc., Installation location such as room information etc., Response sensitivity and reversal hysteresis, Type of feedback signal, Position range within the mechanical limitations, Running time related to the working range, Angle of rotation, Direction of rotation, Stroke, Direction of stroke, Working torque relative to the maximum possible torque, Working actuating force relative to the maximum actuating force, Emergency position, Time delay until the emergency position is reached after a power failure, Counter for recording a number of voltage interruptions, Definition of a behavior if the communication module or the communication connection fails, Definition of a behavior when a power supply is switched on, Definition of a behavior when buttons on the drive are pressed.

[0069] The drive parameters also refer to the following read-only parameters: unique identifier such as a serial number, firmware version, total operating time during which the drive was connected to a power supply, active time during which the drive performed mechanical work, Stop&Go ratio ie the ratio between operating time and active time, and error messages such as the occurrence of overload events or the change in the setting range.

[0070] The drive parameters also refer to temperature, humidity, CO2 content or other sensor values ​​as recorded by sensors connected to the drive.

[0071] In the case of a VAV actuator (VAV: variable air volume), the actuator parameters also refer to the following readable and writable parameters: the box- or manufacturer-specific parameter Δp@Vnom, operating settings of the volume flow (minimum, nominal and maximum) and definition of the behavior when the disengagement button for the gear is pressed.

[0072] In the case of an EPIV actuator (EPIV: Electronic Pressure Independent Valve), the actuator parameters also refer to the following readable and writable parameters: flow control or open loop operation, control signal inverted or non-inverted, non-linear characteristics (volume, percentages, volume per unit time), type of feedback signal, size of the valve and operating settings (minimum, nominal, maximum).

[0073] The following readable and writable parameters can be provided on a control device: installation location such as room information, etc., list of identifiers such as serial numbers of the drives, group designation, operating status and definition of error functions / additional messages.

[0074] In one variant of the drive 1, the passive NFC transponder is configured to receive and store drive parameters from multiple drives 1 of the HVAC system 5. Thus, the drive parameters of the drives of the HVAC system 5 are redundantly stored in the drives 1. Additional parameters from components of the HVAC system 5 can also be redundantly stored in the NFC transponder of the drives 1, for example, data describing the structure of the HVAC system 5, etc. When a power supply is switched on, it is sufficient for the control device 3 to be able to read the data of a single drive 1 in order to access the drive parameters of all drives. This results in particularly robust behavior when switching on the HVAC system, since individual connected drives do not have to be searched for using a potentially complicated communication protocol.

[0075] As mentioned, the NFC transponder can be arranged outside the housing of a drive 1 or a control device 3, wherein the NFC transponder is connected to the drive 1 or the control device 3 via a cable. This can improve accessibility to the NFC transponder with the mobile service device 2, both before and after switching on a power supply.

[0076] In one variant, an NFC extender can be provided on the control device 3 or on the actuator 1, which is activated when the power supply is switched on. The NFC extender comprises an active NFC module and any extender interface such as Bluetooth, WLAN, etc. The active NFC module and the extender interface become active when the power supply is switched on in order to establish a configuration connection between the mobile service device 2 and the NFC transponder for reading and writing data from the mobile service device via the extender interface and the active NFC module. This can simplify service work during operation of the HVAC system, since the mobile service device 2 does not have to be brought directly to the actuator 1 or the control device 3, which are often only accessible with a ladder. REFERENCE SYMBOL

[0077] 1HVAC system drive 10Actuator housing 11Actuator 111Actuator 112Actuator fluid connection 12Actuator sensor interface 121Sensor,Connectable to the sensor interface of the drive 13 Communication module of the drive 14 Passive NFC transponder of the drive 14 Unique identifier stored on the NFC transponder of the drive 15 Control module of the drive 2 Mobile service device 24 Active NFC module of the mobile service device 25 Control module of the mobile service device 26 User interface of the mobile service device 3 Control device of the HVAC system 30 Housing of the control device 32 Sensor interface of the control device 32 1 Fluid sensor of the control device 32 2 Fluid connection of the control device 33 Communication module of the control device 34 Passive NFC transponder of the control device 34 Unique identifier stored on the NFC transponder of the control device 35 Control module of the control device 4 Consumer of the HVAC system 5 HVAC system F Fluid system of the HVAC system,

Claims

1. Control device (3) for an HVAC system (5), the control device (3) comprising a communication module (33) for communicating with one or more components of the HVAC system (5), comprising: a sensor device of the HVAC system (5), a passive NFC transponder (34) which is configured to receive and store a unique identifier (341) of the one or more components from a mobile service device (2) before a power supply of the control device (3) is switched on, and a control module (35) which is configured to access identifiers (341) stored in the NFC transponder (34) after a power supply of the control device (3) is switched on and to transmit control signals to components determined by the identifiers via the communication module (33).

2. Control device (3) according to Claim 1, comprising a fluid connector (322) which is configured for connection to a fluid transport system of the HVAC system (5), wherein the fluid connector (322) comprises a fluid sensor (321) of the sensor device, which is connected to a sensor interface (32) of the control device (3) via a signal line.

3. Control device (3) according to Claim 2, characterized in that the fluid connector (322) is designed as a water pipe or air duct, the two ends of which can be connected to further water pipes or air ducts of the HVAC system (5).

4. Control device (3) according to one of Claims 2 or 3, characterized in that the fluid sensor (321) is configured to measure a flow rate of the fluid.

5. Control device (3) according to one of Claims 2 or 3, characterized in that the fluid sensor (321) is configured to measure a temperature of the fluid.

6. Control device (3) according to one of Claims 1 to 5, characterized in that the passive NFC transponder (34) respectively the control module (35) are configured to receive and store identifiers respectively transmit control signals which relate to one or more of the following components: a sensor device of the HVAC system (5), a drive (1) of the HVAC system (5), a regulation device of the HVAC system (5), a room control unit of the HVAC system (5), a gateway for communication between different communication networks of the HVAC system (5), an actuator of the HVAC system (5) and an interface device for input and output signals of the HVAC system (5).

7. Control device (3) according to Claim 1 to 6, characterized in that the control module (35) is configured, after a power supply of the control device (3) is switched on, to transmit control signals to components determined by the identifiers, which signals are used to query whether the relevant component is available.

8. Control device (3) according to one of Claims 1 to 7, characterized in that the passive NFC transponder (34) is configured to receive and store component parameters assigned to the identifiers (341), the control module (35) being configured to transmit control signals corresponding to the component parameters to components determined by the identifiers.

9. Control device (3) according to one of Claims 1 to 8, characterized in that the passive NFC transponder (34) is configured to receive and store drive parameters assigned to the identifiers (341), the control module (35) being configured to transmit drive parameters from the control device (3) to drives (1) after the power supply has been switched on.

10. Control device (3) according to Claim 9, characterized in that the drive parameters comprise one or more of the following readable and / or writable parameters: Communication address of a drive, installation location, response sensitivity and reversal hysteresis, type of a feedback signal, position range within mechanical limitations, running time relative to an operating range, angle of revolution, direction of rotation, stroke, stroke direction, operating torque relative to the maximum possible torque, operating actuating force relative to a maximum actuating force, Emergency position, time delay until an emergency position is approached after a power failure, counter for recording the number of power failures, definition of behavior if the communication module or a communication connection fails, definition of behavior when a power supply is switched on, definition of behavior when buttons on the drive are pressed.

11. Control device (3) according to one of Claims 9 or 10, characterised in that the drive parameters comprise one or more of the following readable parameters: unique identifier, version of a firmware, total operating time during which the drive has been connected to a power supply, active time during which the drive has performed mechanical work, ratio between operating time and active time, and an error message.

12. Control device (3) according to one of Claims 1 to 11, characterized in that the control module (35) is configured to transmit control signals to components with which component parameters of the components are queried, the control module (35) being configured to transmit control signals corresponding to the component parameters to components determined by the identifiers.

13. Control device (3) according to one of Claims 1 to 12, characterized in that the control module (35) is configured to create a log which has one or more of the following contents: switch-on time of a power supply of the control device (3), query time and status of the availability of components and component parameters, indicating whether these are stored on the NFC transponder or have been queried at a component, and to carry out one or more of the following steps: transmitting the log to a receiving device, if a communication link to the receiving device is available, and storing the log on the NFC transponder (34).

14. Control device (3) according to one of Claims 1 to 13, characterized in that the control module (35) is configured to detect operating values (121, 321) of the HVAC system (5) from the components determined by the identifiers and to transmit control signals to relevant components in accordance with the detected operating values (121, 321).

15. The control device (3) according to any one of Claims 1 to 14, comprising one or more of the following components: a regulation device of the HVAC system (5), a room control unit of the HVAC system (5), a gateway for communication between different communication networks of the HVAC system (5), an actuator of the HVAC system (5), and an interface device for input and output signals of the HVAC system (5).