DE202013008194U1 - Sender for a heating system - Google Patents

Abstract

Encoder (1) for a heating system (2), comprising a measuring unit (3), a receiving unit (4), an evaluation unit (5) and an adjusting element (6), wherein the evaluation unit (5) with the measuring unit (3), the Receiving unit (4) and the adjusting element (6) is connected and wherein the adjusting element (6) with an external temperature input (7) of the heating system (2) is connectable, and wherein by means of the measuring unit (3) local environmental factors detectable and as measurement data to the evaluation unit (5) transferable be prepared, and wherein by means of the receiving unit (4) telegraphed forecast data receivable and transferable to the evaluation unit (5) are provided, and wherein by means of the evaluation unit (5) the measured data and the forecast data are evaluated in an evaluation process, wherein a Evaluation result of the evaluation process as a control signal to the control element (6) transferable provided, and wherein the control signal by means of the control element (6) i n, by the heating system (2) processable, modified outside temperature signal convertible and transferable to this is available.

Description

The invention relates to a transmitter for a heating system for controlling their operating behavior.

From the prior art it is known to provide heating systems of buildings with outdoor temperature sensors, by means of which detects an applied outside temperature and a corresponding external temperature signal is transmitted to the heating system. Depending on the outside temperature signal then the heating system is switched on or off or regulated in their performance, the flow temperature of the heating system to be provided is determined depending on the measured outside temperature.

The disadvantage of such outdoor temperature-controlled heating systems lies in particular in that in this case only a reaction of the heating system to the incoming outside temperature signal of the current outside temperature can always take place. Due to the respective thermal inertia of the heating system, the connected heat dissipation system or the building to be heated, an internal temperature to be influenced can therefore only be readjusted.

In particular, in the case of large and rapid temperature differences or under the influence of other environmental factors, the situation may arise that the heating system is operating in an inappropriate operating state, in particular not being switched on or off sufficiently early, so that there are losses in efficiency or comfort during operation Heating system can come.

In order to optimize the operating behavior, it is known from the prior art to include further environmental factors, such as solar radiation, precipitation or wind as well as forecast data, in the control of the heating system. To implement this, it is known in the prior art to provide heating systems with complex control devices, which have a multiplicity of sensor interfaces for different environmental factors as well as data inputs for prognosis data and have controllers for processing the multiplicity of sensor information

The object of the invention is therefore to show a solution for improving the performance of heating systems, which can be used for an existing heating system, which allows a particularly economical operation of the heating system and which, moreover, can be provided inexpensively and with little installation effort.

The problem is solved by the features listed in the protection claim 1. Preferred developments emerge from the subclaims.

An inventive sensor for a heating system has a measuring unit, a receiving unit, an evaluation unit and an actuating element.

The evaluation unit is in this case connected to the measuring unit, the receiving unit and the adjusting element, wherein the actuating element is also connected to an external temperature input of a heating system.

The connections between the respective components can in the present case be designed both wired and wireless.

According to the invention, the measuring unit is capable of detecting local environmental factors such as, in particular, an external temperature and optionally an air moisture content, a wind speed and a solar irradiation.

The corresponding detected, local environmental factors are provided by the measuring unit transferable as measured data to the evaluation unit.

The term local environmental factors in the sense of the invention means that both several, and only a single local environmental factor can be detected and can be transmitted to the evaluation unit in a transferable manner.

For detecting the local environmental factors, the measuring unit preferably has corresponding individual components such as a temperature sensor, a humidity meter or an anemometer, wherein the individual components of the measuring unit can also be arranged spatially separated from each other and in particular at different positions of the building.

The measurement data are provided by the measuring unit, for example, as digital or analog electrical values.

According to the invention, the receiving unit is able to receive remote-transmitted forecast data and to make it transmissible to the evaluation unit.

The remote-transmitted prognosis data are, in particular, local weather forecasts which are provided by weather services and, for example, via radio, for example via Long-wave transmitter or via the Internet are transmitted.

Such forecast data can also be provided by local weather stations.

In the sense of the invention, the term far-transmitted prognosis data includes that both several, as well as only one single prognosis value can be received, or can be provided to the evaluation unit in a transferable manner.

The evaluation unit according to the invention is capable of evaluating the measurement data transmitted by the measuring unit and the forecast data transmitted by the receiving unit in an evaluation process.

In the evaluation process, the measurement data and the forecast data are combined and evaluated, for example, by means of a suitable algorithm. The result of the evaluation process is provided by the evaluation unit as a control signal and transmitted to the actuator.

In the present case, the actuating element is able to convert the control signal transmitted by the evaluation unit into a modified external temperature signal that can be processed by the heating system and to make this external temperature signal transmissible to the heating system.

The provided, modified outside temperature signal is only determined by the actual outside temperature. The modified outdoor temperature signal reflects the evaluation of possible other current local environmental factors, such as wind speeds, solar radiation and so on, predictive values and optionally data on the specific thermal behavior of a building such as storage masses, thermal insulation behavior, size of the surfaces and so on.

The modified outside temperature signal will therefore deviate more or less from the actual outside temperature as a rule.

The modified outside temperature signal may therefore also be referred to as a predictive equivalent external temperature signal.

The sensor according to the invention is assigned to an outdoor temperature-controlled heating system instead of a conventional temperature sensor. The modified external temperature signal of the encoder thus controls the operating behavior of the heating system.

The modified outside temperature signal is adjusted by the control element by means of the control signal, which is the result of the evaluation process, so that the heating system receives such a modified outside temperature signal, wherein the heating power corresponds to the value which was calculated by the evaluation process as optimal. The modified outside temperature signal is to be understood as a means for controlling the heating system, wherein the control specifications are calculated outside the control unit of the heating system, namely by the evaluation unit.

For example, by issuing a higher modified outside temperature signal than the actual outside temperature corresponds to the heating system can be throttled in the heating power, as may be useful, for example, in low humidity, low wind, high solar irradiation or predicted temperature increase.

As a particular advantage, the sender makes it possible to control the heating system in its operating behavior no longer exclusively as a function of outside temperatures, but rather on the basis of further current local environmental factors, forecast data and optionally the specific thermal behavior of the building.

In this way, in particular the thermal inertia of the heating system, the connected heat dissipation system and possibly the building to be heated can be overcome and compared to conventional, outside temperature-controlled heating systems a particularly effective and economical operation of the heating system can be ensured.

Due to the provisionable avoidance of unnecessary operating times, a particularly resource-saving operation of the heating system can also be made possible.

A particularly important technological advantage is that neither a hardware nor a software intervention in the control unit of the heating system is required. The optimized control intelligence of the sensor according to the invention remains outside the control unit of the heating system and can still be made fully usable for the performance of the heating system.

An associated advantage of the sensor according to the invention is that it can be replaced in the plug-and-play process against an existing, conventional temperature sensor of the heating system, so the necessary installation effort for the encoder itself can be kept very low.

In particular, an existing, outside temperature-controlled heating system can be significantly improved in this way with extremely little effort in their cost-effectiveness, efficiency and environmental compatibility.

A particularly advantageous embodiment of the invention provides that the encoder has an operating state detection unit, which is also connected to the evaluation unit.

According to the invention, the operating state detection unit is used to detect current operating states and to make these transferable as additional data to the evaluation unit.

The term operating states includes that both a single and a plurality of operating states can be detected and provided in a transferable manner.

In the present context, operating conditions of the building, such as internal temperatures, current use of space, open windows or also operating states of the heating system, such as flow or return temperatures, pump switching states and so on, are understood as operating states.

According to the invention, the additional data can be included in the evaluation process, so that these can be taken into account in the control signal of the evaluation unit.

For example, in this way, the operating state detection unit can detect whether the building to be heated is currently being used, so that the evaluation unit can output a corresponding control signal by which the heating system is either controlled up or down by means of the modified outside temperature signal.

As a result of this development, the modified outside temperature signal can be realized as a result of a complex evaluation in such a way that the amount of heat retrieved from the heating system is reduced while maintaining the Temperierungskomfort.

In a further advantageous embodiment, an operating state is an internal temperature of the building to be heated. For this purpose, the operating state detection unit preferably has an interior temperature sensor, which detects the internal temperature in a representative area or room of the building.

The inclusion of the internal temperature in the evaluation process offers the particular advantage here that the control signal output by the evaluation unit takes into account the currently existing internal temperature of the building and thus the economic operation of the heating system can be additionally optimized.

For example, in this way, the provided by the encoder, outside temperature signal can be adjusted so that kept at a relatively high temperature inside the building, the flow temperature of the heating system or leave the heating system generally in a deactivated operating state, or is placed in this.

In addition, another particularly advantageous embodiment of the invention provides that the receiving unit is capable of receiving energy tariff data, for example from a local energy supplier, and to make it available to the evaluation unit in a transferable manner.

According to the invention, the energy tariff data can likewise be included in the evaluation process, so that the output control signal can additionally be modified on the basis of the energy tariff data.

The received energy tariff data contain, for example, a specific time course of different energy tariffs, such as night stream, so that a cost-optimized operation of the heating system can be realized by the dealer as a special technological advantage.

In an alternative embodiment of the embodiment listed here, the receiving unit has a further receiving module, the function of which is solely to receive the energy tariff data of the local energy supplier and to make it transferable to the evaluation unit.

In a preferred development, the receiving unit is able to receive control commands, in particular from external input devices, and to make them available as command data to the evaluation unit in a transferable manner. The command data can also be included in the evaluation process, so that a corresponding control signal is provided as a function of the command data.

Due to the ability to receive the control commands, it is particularly advantageous that the output of the control signal or of the modified outside temperature signal is controlled externally and thus the operating state of the heating system can be remotely changed.

In this context, preferably a smartphone is used as the external input device, which makes it possible to select the corresponding control command by means of an app and to send this, for example via the GSM network to the receiving unit.

If, for example, given the command to turn off via a smartphone, this can be realized in a simple manner so that the evaluation unit outputs a modified external temperature signal by means of the control signal that corresponds to a very high outside temperature, so that the control unit of the heating system switches off the heating system.

As a further advantage of the here mentioned acceptability of control commands lies in a further development that by means of the external input device wirelessly accessible to the receiving unit and in this way a parameterization of the encoder, or the evaluation unit, can be performed. For example, by such a parameterization of the, the evaluation process underlying mathematical algorithm or sensitivity of the measuring unit can be adjusted.

In this development, by the receiving unit, for example, also control commands of a competent supply network operator, hereinafter referred to as network operators, receivable and transferable as command data available. As a particular advantage, this allows access by the network operator. Such access allows the network operator via the control command, the command data, the evaluation unit, the control signal and ultimately the actuator to generate such a modified outside temperature signal by which the connected heating system can be disabled or activated.

In this way it is made possible as a particular advantage that the network operator in an emergency, especially in the case of an imminent network overload, by means of the modified outside temperature signal is able to switch off the associated heating system and thus to prevent network overload.

Such a possibility of emergency shutdown of the heating system is particularly advantageous in heat pump systems with comparatively electric power consumption.

In addition, such an access to the evaluation unit of a sensor according to the invention can also take place simultaneously within a grouped access, that is, to a plurality of donors according to the invention, whereby a correspondingly larger number of connected heating systems can be deactivated by the network operator by remote access in an emergency. The receiving unit is preferably designed so that it can directly process the signal formats of the network operators; Alternatively, a signal converter can be provided.

Thus, the invention enables effective technical means for increasing the network stability.

The invention will be described in embodiments with reference to

1 Schematic representation without operating state detection unit

2 Schematic representation with operating state detection unit explained in more detail.

1 shows an encoder according to the invention 1 for a heating system 2 a building and a transmitter 9 ,

At this point it is noted that the heating system 2 of the building and the transmitter 9 do not constitute components of the present invention, but these only for explaining the operation of the encoder 1 serve.

The giver 1 in this case has a measuring unit 3 , a receiving unit 4 as well as an evaluation unit 5 and an actuator 6 on, with the evaluation unit 5 with the measuring unit 3 , the receiving unit 4 and the actuator 6 connected is. The power supply (not shown) takes place in the embodiment via a separate power supply.

In the embodiment shown here, the measuring unit 3 and the receiving unit 4 arranged for illustration outside the building.

The actuator 6 is present as an integral part of the evaluation unit 5 designed and with an outside temperature input 7 the heating system 2 connected.

Alternatively, the actuator could 6 also as a separate component within the encoder 1 be arranged.

The measuring unit 3 According to the invention, it is capable of detecting local environmental factors such as, for example, an outside temperature, a wind speed, a humidity or a solar irradiation.

As a major environmental factor in this context, the outside temperature through the measuring unit 3 detected.

In addition, the measuring unit 3 to be able to record the detected environmental factors as measurement data to the evaluation unit 5 to provide transferable.

In contrast, the receiving unit 4 According to the invention, it is able to receive remote-transmitted forecast data, hereinafter referred to as forecast data, and to send it to the evaluation unit 5 to provide transferable. The forecast data in the present embodiment by radio, with the help of a transmitter 9 remote transmission, wherein the forecast data in particular represent weather forecasts, which are provided by a selected weather service and transmitted for example as a long-wave signal.

The measurement and prognosis data are presently provided by the measuring unit 3 , or by the receiving unit 4 , provided as digital values transferable.

The evaluation unit 5 In turn, according to the invention, it is able to evaluate the transmitted measurement and prognosis data in an evaluation process. Here, the measurement and forecast data are combined and evaluated using a mathematical algorithm.

In an advantageous variant of the invention, additional building data, such as storage masses, areas and heat transfer values of exterior walls, surface-volume ratios and the like, are included in the algorithm and thus in the evaluation.

At the end of the evaluation process, a corresponding evaluation result is provided and for further processing by the evaluation unit 5 as a control signal to the actuator 6 transfer.

The actuator 6 According to the invention is able to the control signal in, from the heating system 2 processable, modified outside temperature signal and convert this to the outside temperature input of the heating system 2 transferred to. In the present embodiment, the encoder ( 1 ) in place of a previously existing outside temperature sensor, which was designed as a thermally variable resistor. The actuator 6 is in the same way to the heating system 2 connected like the previous outside temperature sensor; It changes its resistance according to the control signal and thus simulates a certain outside temperature with respect to the heating system.

The encoder according to the invention 1 Thus, in a particularly advantageous manner, a modified outdoor temperature signal for the heating system 2 which considers both the currently prevailing local environmental influences as well as the forecast data and thus the weather forecasts.

2 shows an expanded embodiment of the encoder according to the invention 1 in addition to being an operating condition detecting unit 8th having.

The operating condition detection unit 8th In particular, it is capable of detecting operating conditions of the building and of the heat dissipation system and the operating conditions as additional data to the evaluation unit 5 to provide transferable.

An operating state to be detected here represents the internal temperature of the building, wherein the operating state detection unit 8th for this purpose, an internal temperature sensor (not shown).

The by the operating state detection unit 8th transmitted additional data are from the evaluation unit 5 included in the evaluation process and thereby taken into account by the mathematical algorithm.

The evaluation result subsequently output as a control signal thus results from the local environmental factors, the prognosis data and the additional data, in particular the internal temperature.

In this way, effectiveness and cost-effectiveness of the heating system 2 , with the same comfort function, be improved again.

For example, it is possible in this context that, by the donor 1 issued, modified outdoor temperature signal at a sufficiently high indoor temperature in the building is adjusted so that only a low flow temperature through the heating system 2 provided or the heating system 2 is deactivated or remains in a deactivated state. That by the giver 1 In this case, the modified, modified outside temperature signal simulates a higher outside temperature than the real prevailing outside temperature.

In a preferred embodiment, the receiving unit 4 additionally capable of receiving energy rate data from a local utility company.

The energy rate data are preferably also via the transmitter 9 In particular, they include specific energy provision periods and the related energy costs.

From the receiving unit 4 the energy tariff data are sent to the evaluation unit 5 provided transferable and by the evaluation unit 5 also included in the evaluation process.

In this way, this is taken into account by the dealer 1 issued, modified outdoor temperature signal additionally existing, different energy rates, such as night electricity, so that a necessary operation of the heating system 2 preferably in periods of low energy costs by the dealer 1 initialized and avoided as far as possible in periods of high energy costs. In particular, the economic efficiency of the operation of the heating system 2 This can be further improved without their comfort function is impaired.

A specific embodiment of the invention provides that the receiving unit 4 is capable of receiving control commands from a responsible network operator.

By means of such control commands, it is possible for the network operator to generate a corresponding modified outside temperature signal, by which the connected heating system 2 is deactivated. The network operator can thus in a case of emergency deactivation and after elimination of the emergency again perform an activation.

Such an emergency can occur, for example, by imminent network overload.

In this way, particularly when the heating system is designed as a heat pump system with a comparatively high energy requirement, it is possible to centrally separate larger loads from the grid by means of remote intervention, with no separate switching devices being required as a particular advantage, but rather the control of the connected heating system 2 performs the shutdown.

By the encoder according to the invention 1 Thus, it is caused as a special technological advantage that a connected heating system 2 operated economically on the basis of the determined and received data, as well as in an emergency can be deactivated by a network operator via remote access.

LIST OF REFERENCE NUMBERS

1

giver

2

heating system

3

measuring unit

4

receiver unit

5

evaluation unit

6

actuator

7

Outside temperature input heating system

8th

Operating state detection unit

9

transmitter

Claims (5)

Giver ( 1 ) for a heating system ( 2 ), comprising a measuring unit ( 3 ), a receiving unit ( 4 ), an evaluation unit ( 5 ) and an actuator ( 6 ), the evaluation unit ( 5 ) with the measuring unit ( 3 ), the receiving unit ( 4 ) and the actuator ( 6 ) and wherein the actuating element ( 6 ) with an outside temperature input ( 7 ) of the heating system ( 2 ) is connectable, and wherein by means of the measuring unit ( 3 ) local environmental factors and as measurement data to the evaluation unit ( 5 ) are transferable, and wherein by means of the receiving unit ( 4 ) remote-transmitted forecast data receivable and to the evaluation unit ( 5 ) are transferable, and wherein by means of the evaluation unit ( 5 ) the measured data and the forecast data can be evaluated in an evaluation process, wherein an evaluation result of the evaluation process is transmitted as a control signal to the actuating element ( 6 ) is transferable, and wherein the control signal by means of the actuating element ( 6 ) in, from the heating system ( 2 ) convertible, modified external temperature signal convertible and transferable to this is available. Encoder according to claim 1, wherein the encoder ( 1 ) an operating condition detecting unit ( 8th ), which with the evaluation unit ( 5 ), and wherein by means of the operating state detection unit ( 8th ) Operating conditions and as additional data to the evaluation unit ( 5 ) are transferable provided and wherein the additional data in the evaluation process can be included. An encoder according to claim 2, wherein an operating condition is an internal temperature. Sensor according to one of the preceding claims, wherein by means of the receiving unit ( 4 ) Energy tariff data receivable and to the Evaluation unit ( 5 ) are transferable available and wherein the energy tariff data in the evaluation process can be included. Sensor according to one of the preceding claims, wherein by means of the receiving unit ( 4 ) Control commands and as command data to the evaluation unit ( 5 ) are transferable and wherein the command data in the evaluation process can be included.

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