DE102015103729A1 - control unit - Google Patents

Abstract

A control unit for operating a refrigerant compressor apparatus, the refrigerant compressor apparatus having a first refrigerant refrigerant piping system, a second refrigerant refrigerant piping system, and at least one refrigerant compressor operating between the first refrigerant piping system and the second refrigerant piping, driven by a dedicated motor, and wherein the Control unit has an operating unit to improve such that it is user-friendly, it is proposed that the operating unit has a memory for pixel data for displaying at least one component of the refrigerant compressor system that the operating unit has a visualization unit, with which by means of the pixel data of the at least one component the refrigerant compressor plant visualization of this at least one component as a component image on the visualization unit.

Description

The present invention relates to a control unit for operating a refrigerant compressor apparatus, wherein the refrigerant compressor apparatus has a first refrigerant refrigerant piping system and a second compressed refrigerant piping system of at least one refrigerant compressor operating between the first refrigerant piping and the second refrigerant piping, driven by a dedicated motor the control unit has an operating unit.

Such control units are known from the prior art, but in these, the operation with the usual keys is complex and not user-friendly.

The invention is therefore an object of the invention to improve a control unit of the generic type such that it is user-friendly to use.

This object is achieved according to the invention in a control unit of the type described in the introduction in that the operating unit has a memory for picture element data for displaying at least one component of the refrigerant compressor unit, that the operating unit has a visualization unit with which a visualization by means of the picture element data of at least one of the components of the refrigerant compressor system the at least one component takes place as a component picture element on this visualization unit.

The advantage of the solution according to the invention is thus to be seen in the fact that it opens up the possibility of displaying at least one component or several components of the refrigerant compressor system on the visualization unit and thus simplifying an easy-to-understand user interface for operating the same and making it more transparent and clearer for an operator ,

The components of the refrigerant compressor unit can be of various types.

Thus, a solution provides that the component comprises at least one refrigerant compressor and that the operating unit represents by means of the pixel data of the at least one refrigerant compressor this refrigerant compressor as a compressor pixel on the visualization unit.

Such a compressor pixel can be designed in different ways.

For example, it is provided that the respective compressor pixel is a realistic image of the respective refrigerant compressor, which facilitates the recognizability for an operator.

Alternatively, it is provided that the respective compressor pixel is an abstracted image of the respective refrigerant compressor.

In principle, however, there is also the possibility that the respective compressor pixel is a symbol for the respective refrigerant compressor.

A further advantageous alternative provides that the component comprises at least one refrigerant line and that the operating unit represents the refrigerant line as line pattern element on the visualization unit by means of the picture element data of the refrigerant line.

With regard to the line picture element a variety of ways are also conceivable.

Thus, an advantageous solution provides that the respective line pattern is a realistic image of the at least one refrigerant line.

Alternatively, it would also be conceivable that the respective line element is an abstracted image of the at least one refrigerant line.

Furthermore, it would also be conceivable in principle that the respective line picture element is a symbol for the respective refrigerant line.

Furthermore, a further advantageous alternative provides that the component of the refrigerant compressor installation comprises at least one sensor and that the operating unit displays the sensor as a sensor picture element on the visualization unit by means of the picture element data of the at least one sensor.

Also with regard to the sensor picture element a variety of possibilities are conceivable.

For example, it would be conceivable that the sensor pixel is a realistic representation of the sensor.

Alternatively, it is advantageous that the sensor picture element is a picture element abstracting the respective sensor, such a picture element abstracting the respective sensor having the advantage of representing the existence of the sensor with sufficient precision, but on the other hand not having a large amount of data for displaying the picture To need a picture element.

Furthermore, it is basically also conceivable that the sensor picture element is a picture element symbolically representing the respective sensor, which still requires less data for the display.

Furthermore, it is provided in the representation of a sensor picture element that the operating unit has a memory for sensor data and that the operating unit displays the sensor data on the visualization unit.

Thus, the sensor data are available to an operator in a simple manner.

In particular, it is favorable if the operating unit displays the sensor data together with the sensor picture element on the visualization unit.

This solution has the great advantage that in this case the operator can simultaneously acquire the sensor data in connection with the sensor pixel.

Sensor data means all data required in connection with the sensor.

This means that the sensor data can be either the specification of the sensor itself or sensor values.

It is preferably provided that the sensor values detected by the sensors are represented as part of the sensor data, for example with the sensor picture element.

In particular, it is provided that the sensor values are represented by a display element of the sensor pixel.

In particular, it is provided that the respective sensor picture element is a picture element with a display field for the respective sensor value measured by the sensor.

This means that, for example, the sensor image has a scale and the display element is shown as a pointer, which indicates the sensor value in that the pointer points to the respective numerical value of the scale.

Alternatively, it is preferably provided that the sensor values are represented as numbers in the sensor pixel.

With regard to the location of the representation of the respective sensor picture element, no further details have been given so far.

In principle, the respective sensor pixel could be displayed at any location on the visualization unit.

A particularly advantageous solution provides that the representation of the sensor pixel takes place at the location of the refrigerant compressor plant, at which the sensor detects the respective sensor value.

A further advantageous embodiment of the solution according to the invention provides that the component comprises at least one actuator of the refrigerant compressor installation and that the operating unit displays this actuator as an actuator picture element on the visualization unit by means of the picture element data of the at least one actuator.

Actuators are to be understood as meaning all components of the refrigerant compressor system which cause or control a function.

In the case of an actuator, it is particularly advantageous if the operating unit has a memory for actuator data and if the operating unit displays the actuator data on the visualization unit.

In particular, it is advantageous in this case if the actuator data are displayed assigned to the actuator picture element.

It is conceivable, for example, that the actuator data is represented by a display element.

Alternatively, it is provided that the actuator data are displayed as numbers.

Alternatively or in addition to the previously described embodiments of the control unit according to the invention, a further advantageous embodiment provides that the operating unit has a memory for picture element data for displaying at least one operating state of the refrigerant compressor system and that by the operating unit by means of the pixel data of the at least one operating state of the refrigerant compressor system visualization the at least one operating state of the refrigerant compressor installation takes place as a conditional picture element on the visualization unit.

Such a visualization of the operating states can take place in various ways.

For example, it is conceivable that the representation of the state picture element takes place in connection with the respective component picture element to which the operating state is assigned.

For example, it would be conceivable to provide a colored background of the respective component picture element as the state picture element, so that the representation of the respective operating state takes place, for example, by the colored background of red or green of the respective component picture element.

Alternatively, it is also conceivable to represent the state picture element in the respective component picture element or next to the respective component picture element by a graphic symbol.

As an alternative or in addition to this, a further solution provides that the status picture element is displayed as a status field assigned to the individual component picture element.

As an alternative or in addition to the previous solutions, a further advantageous solution provides for the operating unit to have a memory for picture element data for displaying at least one operating element of the operating unit and for the visualization of the at least one operating element to be performed by the operating unit by means of the picture element data of the at least one operating element of the operating unit takes place as a control pixel on the visualization unit.

Furthermore, it is preferably provided that the memory has picture element data for displaying at least one operating state of the respective operating element of the operating unit and that the visualization of the at least one operating state of the operating element as an operating state picture element on the visualization unit is performed by the operating unit by means of the picture element data of the at least one operating state of the respective operating element.

The representation of the control state element can be carried out in various ways.

Thus, an advantageous solution provides that the operating state image element is displayed on the visualization unit assigned to the respective control element picture element.

However, it is also conceivable to represent the operating state element independently of the operating element picture element, for example in the form of an additional signal element.

With regard to the design of the visualization unit and the interaction with the visualization unit, no further details have been given in connection with the previous description of the solution according to the invention.

Thus, an advantageous solution provides that the visualization unit is designed such that a command can be generated by a manual interaction with one of the illustrated picture elements of the operating unit.

That is, the manual interaction leads to a defined command, which is directed to the visualization unit and / or the operating unit and / or the control unit and this is transmitted.

The manual interaction may consist in that the picture element is approached by a cursor and, for example, by a mouse click the manual interaction takes place, so that thereby the command can be generated and in particular also transmitted.

A particularly advantageous solution provides that the visualization unit is embodied as a touch-sensing visualization unit, in particular has a touch-sensitive surface, and that the manual interaction takes place by manually touching the surface of the visualization unit in the area of the picture element displayed on the visualization unit.

Such a visualization unit is designed in particular as a so-called touch screen, so that the manual interactions can be the usual interactions provided on a touchscreen.

Such manual interactions may include tapping or swiping, for example in a horizontal or vertical direction, or enlarging or decreasing by relative movement of two points of contact with each other, e.g. move apart or move together two points of contact, be.

The generated and transmitted command can be of various types.

Thus, one solution is that the command, particularly in the context of a control, is a command to enable or disable or modify an action.

Alternatively, it is also conceivable that the command is used to change the presentation, for example, to call another representation or another representation.

In this case, another representation is a modified representation of the same or of a further picture element.

However, it is also provided that the further display function is an enlarged representation of the same picture element.

Another possibility provides that the further representation of the respective picture element is a representation of the respective picture element with further picture elements.

With regard to the interaction between the visualization unit and the operating unit, no further details were given.

For example, it is provided that the visualization unit communicates with the control unit via a wired connection, i. in this case, the visualization unit is either arranged stationary on the operating unit or is movable relative to the operating unit, but is cable-bound.

Another advantageous solution provides that the visualization unit communicates with the control unit without wires.

Under a wireless communication, for example, to understand the communication via wireless or Bluetooth or other wireless communication network, such as a wireless network.

With regard to the arrangement of the visualization unit in the case of a wireless communication with the operating unit also several solutions are conceivable.

It is also conceivable, for example, to arrange the visualization unit in a stationary manner also in this case.

However, it is particularly advantageous if the visualization unit is a portable unit that can easily be carried by the operator on the move.

This is realized for example in such a way that a tablet computer or even a mobile telephone or a similarly designed mobile device serves as the visualization unit, via which communication with the operating unit is possible.

In a further alternative, it is also preferably provided that, on the one hand, a line-bound visualization unit communicating with the operating unit is provided and, in addition, a control unit communicating with the operating unit is provided, so that the advantages of the two solutions are combined.

Moreover, the object at the outset is also achieved by methods with the features explained below, wherein the individual method features have the advantages explained above in connection with the features of the control unit.

More particularly, the invention also relates to a method for operating a refrigerant compressor system by means of a control unit, wherein the refrigerant compressor unit comprises a first refrigerant refrigerant refrigerant refrigerant system, a second compressed refrigerant refrigerant system, and at least one refrigerant compressor operating between the first refrigerant piping system and the second refrigerant piping system The control unit has an operating unit, in which the operating unit stores picture element data for displaying at least one component of the refrigerant compressor system, and a visualization of this at least one component as a component picture element on the operating unit by means of the picture element data of the at least one component of the refrigerant compressor system Visualization unit is running.

It is advantageous if the component comprises at least one refrigerant compressor and that the operating unit by means of the pixel data of the means of at least one refrigerant compressor this refrigerant compressor represents as a compressor pixel on the visualization unit.

In particular, it is provided that the respective compressor pixel is a realistic image of the respective refrigerant compressor.

Alternatively, it is also conceivable that the respective compressor pixel is an abstracted image of the respective refrigerant compressor.

A favorable solution provides that the component comprises at least one refrigerant line and that the operating unit represents by means of the pixel data of the at least one refrigerant line this at least one refrigerant line as a line picture element on the visualization unit.

Furthermore, it is expedient if the respective line picture element is a realistic image of the at least one refrigerant line.

Alternatively, it is provided that the respective line picture element is an abstracted image of the at least one refrigerant line.

A further advantageous solution provides that the component comprises at least one sensor and that the operating unit represents the at least one sensor on the visualization unit as a sensor pixel by means of the pixel data of the at least one sensor.

Appropriately, it is provided that the sensor pixel is a pixel abstracting the respective sensor.

Alternatively, it is provided that the sensor pixel is a pixel symbolically representing the respective sensor.

Another solution provides that the operating unit stores sensor data and that the operating unit displays the sensor data on the visualization unit.

Furthermore, it is advantageous if the sensor values detected by the sensors are displayed as part of the sensor data.

For example, it is provided that the sensor values are represented by a display element of the sensor pixel.

However, it is also possible for the sensor values to be represented as numbers in the sensor pixel.

For the operator, it is favorable if the representation of the sensor pixel takes place at the location of the refrigerant compressor plant at which the sensor detects the respective sensor value.

A further advantageous solution provides that the component comprises at least one actuator of the refrigerant compressor installation and that the operating unit displays this actuator as an actuator picture element on the visualization unit by means of the picture element data of the at least one actuator.

In particular, it is expedient if the operating unit stores actuator data and that the operating unit displays the actuator data on the visualization unit.

Furthermore, it is favorable if the actuator data detected by the actuator are displayed assigned to the actuator picture element.

For example, it is provided that the actuator data are represented by a display element.

Alternatively, it is provided that the actuator data are displayed as numbers.

A further solution according to the invention provides, as an alternative or in addition, for the operating unit to store picture element data for representing at least one operating state of the refrigerant compressor system and for the operating unit to visualize the at least one operating state of the refrigerant compressor system as a status picture element by means of the picture element data of the at least one operating state of the refrigerant compressor system. running on the visualization unit.

In particular, it is favorable if the representation of the state picture element takes place in connection with the respective component picture element to which the operating state is assigned.

Furthermore, it is advantageous if the status picture element is displayed as a status field assigned to the individual component picture element.

Alternatively or additionally, another solution according to the invention provides for the task that the operating unit stores picture element data for displaying at least one operating element of the operating unit and that the operating unit uses the picture element data of the at least one operating element of the operating unit to visualize the operating elements as operating picture elements on the visualization unit.

For this purpose, it is preferably provided that the operating unit stores picture element data for displaying at least one operating state of the respective operating element of the operating unit and that the operating unit of the operating element of the operating element of the operating element displays the operating state of the operating element of the refrigerant compressor system as an operating state picture element on the visualization unit.

Furthermore, it is favorable if the operating state picture element is displayed on the visualization unit assigned to the respective control element picture element.

A particularly favorable solution provides that the visualization unit is designed such that a command is generated by a manual interaction with one of the picture elements of the operating unit.

In particular, it is expedient for the visualization unit to be designed as a touch-detecting visualization unit and for the manual interaction to take place by manually touching a surface of the visualization unit in the area of the picture element displayed on the visualization unit.

For example, it is provided here that the transmitted command is a call for a further representation of at least one picture element.

One possibility provides that the further representation is a modified representation of the same or of a further picture element.

It is also possible that the further illustration is an enlarged representation of the same picture element.

Furthermore, it is possible that the further representation of the respective picture element is a representation of the respective picture element with further picture elements.

In an advantageous embodiment, it is provided that the visualization unit communicates with the operating unit by line.

Another alternative or supplementary solution provides that the visualization unit communicates with the control unit without wires.

In particular, it is possible that the visualization unit is carried by an operator.

Further features and advantages of the invention are the subject of the following description and the drawings of an embodiment.

In the drawing show:

1 a representation of an embodiment of a refrigeration cycle with a refrigerant compressor module comprising refrigerant compressor system and a control unit;

2 a partial enlarged view of one of the refrigerant compressor modules according to 1 ;

3 a schematic representation of the control unit of the refrigerant compressor installation according to the invention;

4 a representation of a generated on the visualization unit of the refrigerant compressor plant according to the invention overview with the image elements used for the overview representation;

5 a representation of a refrigerant compressor module on the visualization unit with the image elements used for the representation of the same;

6 a representation of a refrigerant compressor on the visualization unit with the pixels used;

7 an illustration of the on the visualization unit for the representation of a lubricant supply system in connection with a compressed refrigerant refrigerant line comprising a lubricant separator used picture elements;

8th a representation of the pixels used on the visualization unit for visualization of the individual components of the control unit;

9 a representation similar 5 with abstracted compressor pixels and

10 a representation similar 5 with symbols as compressor pixels.

An in 1 schematically illustrated refrigerant circuit K includes a first line system LSE for expanded refrigerant, a second piping system LSV for compressed refrigerant and the expanded refrigerant from the piping system LSE compressing refrigerant compressor unit KVA, which supplies the compressed refrigerant to the piping system LSV for compressed refrigerant.

Furthermore, the refrigerant circuit K also comprises a heat exchanger WTV for cooling the refrigerant compressed by the refrigerant compressor system KVA, which is connected to the line system LSV, an expansion element EXP arranged following the heat exchanger WTV, which expands the compressed refrigerant and supplies a heat exchanger WTE, in which the refrigerant cooled by the expansion is able to absorb heat.

The exemplary in 1 shown refrigerant compressor unit KVA in turn comprises at least one, in the illustrated embodiment, for example, three refrigerant compressor modules 10 ₁ , 10 ₂ and 10 ₃ , which are arranged in parallel between the first expanded refrigerant piping LSE and the second compressed refrigerant piping LSV, each of the refrigerant compressor modules 10 ₁ to 10 ₃ draws LSE refrigerant from the first line system, compresses it and supplies it as a compressed refrigerant to the line system LSV.

As in 1 and 2 in this case, each of the refrigerant compressor modules comprises 10 in this case, for example, the refrigerant compressor module 10 ₁ , a first refrigerant line 12 that expanded with the first LSE line system for that Refrigerant is connected and in the illustrated refrigerant compressor module 10 ₁ three supply lines 14 . 16 and 18 each of which is a refrigerant compressor 22 . 24 . 26 leads, each by its own engine 32 . 34 . 36 , preferably an electric motor, is driven.

Each of these refrigerant compressors 22 . 24 . 26 compresses this via the first refrigerant line 12 supplied refrigerant and to a higher pressure than the pressure in the first refrigerant line 12 This higher pressure will usually be medium pressure or high pressure.

The compressed refrigerant is from the respective refrigerant compressor 22 . 24 . 26 , a second refrigerant line 42 supplied to each of the refrigerant compressors 22 . 24 26 guided branch lines 44 . 46 . 48 includes.

The second refrigerant line 42 for the compressed refrigerant includes one as a whole 52 designated lubricant separator, with which a separation of the compressed in the refrigerant from the refrigerant compressors 22 . 24 . 26 entrained lubricant, which is in the lubricant separator 52 , For example, on the bottom side, collects and starting from the lubricant separator 52 via a lubricant supply system 54 again the individual refrigerant compressors 22 . 24 . 26 is supplied for lubrication.

By way of example, this includes the lubricant supply system 54 still a lubricant cooling 56 ,

The second refrigerant line 42 further performs that through the lubricant separator 52 passed refrigerant to the second refrigerant piping LSV.

For controlling the individual refrigerant compressor modules 10 are these, as in 1 based on the refrigerant compressor module 10 ₁ , assigned a plurality of sensors and actuators.

For detecting a temperature of the first refrigerant line 12 guided expanded refrigerant is a first temperature sensor 62 provided that the temperature of the first refrigerant line 12 recorded flow of expanded refrigerant.

Further, an intake pressure of the individual refrigerant compressors 22 . 24 . 26 detected, for example, each suction side 72 . 74 . 76 the refrigerant compressor 22 . 24 . 26 a suction pressure sensor 82 . 84 . 86 assigned.

Alternatively, it is also conceivable, instead of the individual suction pressure sensors 82 . 84 . 86 the suction sides 72 . 74 . 76 to connect with each other through a pressure sensing line and a common suction pressure sensor for all suction sides 72 . 74 . 76 attributable to the pressure sensing line, so that an average suction pressure can be detected by this suction pressure sensor.

Furthermore, in each of the refrigerant compressor modules according to the invention 10 a monitoring of printed pages 92 . 94 . 96 the refrigerant compressor 22 . 24 . 26 , where, for example, the individual printed pages 92 . 94 . 96 the refrigerant compressor 22 . 24 . 86 Enddrucksensoren 102 . 104 . 106 assigned.

In addition, the temperature of the compressed refrigerant in the second refrigerant line 42 To capture, for example, the individual branches 44 . 46 . 48 second temperature sensors 112 . 114 . 116 assigned to the temperature of each individual refrigerant compressor 22 . 24 . 26 compressed refrigerant in each of the individual branch lines 44 . 46 . 48 can capture individually.

For detecting temperature and pressure of the lubricant from the separator 52 via the lubricant supply system 54 to the individual refrigerant compressors 22 . 24 . 26 recycled lubricant is the lubricant supply system 54 both a lubricant temperature sensor 122 assigned and, for example, a lubricant pressure by lubricant pressure sensors 124 . 126 . 128 , in particular each near the lubricant inlet of the individual refrigerant compressor 22 . 24 . 26 , detected.

To control the operation of the individual refrigerant compressor modules 10 In addition to the sensors described also actuators are provided, which are, for example, the individual motors 32 . 34 . 36 with these associated engine controls 132 . 134 . 136 , which are formed for example as a converter.

Further, the individual compressors 22 . 24 . 26 still as actuators controls 142 . 144 . 146 associated with which a control of the pressure ratio and / or the volume ratio of the individual refrigerant compressor 22 . 24 . 26 he follows.

The control of the individual operating states of the individual refrigerant compressor modules 10 ₁ to 10 ₃ is done by one as a whole with 150 designated control unit which in 1 in connection with the refrigerant compressor modules 10 ₁ to 10 ₃ and in 3 is shown in detail.

The control of the individual refrigerant compressor modules 10 ₁ to 10 ₃ is performed on the basis of sensor values of one or more of the above-explained sensors or on external reference values of the refrigerant cycle, for example, a pressure of the expanded refrigerant in the first refrigerant piping LSE or in the heat exchanger unit WTE or a pressure of the compressed refrigerant in the refrigerant piping LSV.

For example, as in 3 shown, the control unit according to the invention 150 a bus system 152 with which a first central processing unit 154 and a second central processing unit 156 as well as input / output units 172 . 174 and 176 coupled together.

Furthermore, if appropriate, the central processor units are additionally provided 154 and 156 even with these directly assigned input / output units 164 . 166 Mistake.

The input / output units make it possible to establish a connection with the respective sensors and actuators.

For example, the temperature sensor 62 with the input / output unit 172 connected.

For detecting the at the suction sides 72 . 74 . 76 the refrigerant compressor 22 . 24 . 26 lying suction pressure is in each case one of the suction pressure sensors 82 . 84 . 86 connected to one of the input / output units, so for example, the suction pressure sensor 82 with the input / output unit 172 , the suction pressure sensor 84 with the input / output unit 176 and the suction pressure sensor 86 with the input / output unit 176 ,

Furthermore, there is a monitoring of the printed pages 92 . 94 . 96 the refrigerant compressor 22 . 24 . 26 through the end pressure sensors 102 . 104 . 106 wherein each one of the end pressure sensors is connected to one of the input / output units, so for example the end pressure sensor 102 with the input / output unit 172 , the end pressure sensor 104 with the input / output unit 174 and the end pressure sensor 106 with the input / output unit 176 ,

Furthermore, those are the branch lines 44 . 46 . 48 the second refrigerant line 42 associated temperature sensors 112 . 114 . 116 each with one of the input / output units 172 . 174 . 176 connected, so for example, the temperature sensor 112 with the input / output unit 172 , the temperature sensor 114 with the input / output unit 174 and the temperature sensor 116 with the input / output unit 176 ,

Likewise, each one of the lubricant pressure sensors 124 . 126 . 128 connected to one of the input / output units, so for example the lubricant pressure sensor 124 with the input / output unit 172 , the lubricant pressure sensor 126 with the input / output unit 174 and the lubricant pressure sensor 128 with the input / output unit 176 ,

Furthermore, in addition, the lubricant temperature sensor 122 for example, with the input / output unit 176 connected.

The connection to the actuators is preferably via the input / output units 172 . 174 . 176 , For example, the individual engine controls 132 . 134 . 136 also connected to individual input / output units.

For example, the engine control 132 with the input / output unit 172 , the engine control 134 with the input / output unit 174 and the engine control 136 with the input / output unit 176 connected.

Also the other actuators, for example the controls 142 . 144 . 146 for controlling the volume or pressure ratio of the refrigerant compressors 22 . 24 . 26 , are connected to various input / output units.

For example, the control is 142 with the input / output unit 172 , the control 144 with the input / output unit 174 and the control 146 with the input / output unit 176 connected.

As the above exemplary explanation of the connection of the individual sensors and actuators with the input / output units shows, preferably the sensors and actuators are one of the refrigerant compressors 22 . 24 . 26 are assigned, associated with an input / output unit.

This has the advantage that, for example, in the event of failure of one of the sensors and / or actuators leidglich one of the refrigerant compressor units 22 . 24 . 26 is affected and thus, for example, the possibility exists, the respective refrigerant compressor module 10 with the other two refrigerant compressors 22 . 24 . 26 continue to operate.

In addition, the two are provided central processor units 154 and 156 preferably used as redundant central processing units and work as follows:
In normal operation, the first central processing unit takes over 154 all control functions for the refrigerant compressor system according to the invention, in particular for all Refrigerant compressor modules 10 ₁ to 10 ₃ and corresponds in particular with the corresponding input / output units 172 . 174 and 176 over the bus system 152 ,

The second central processing unit 156 does not work in one with the input / output units 172 . 174 and 176 corresponding waiting state, wherein the second central processing unit 156 in the waiting state, a data stream is transmitted continuously or in successive intervals, all of which from the first central processing unit 154 captured and in a store 194 Stored data also a memory 196 the second central processing unit 156 transmitted, so that the second central processing unit 156 is constantly able to control the refrigerant compressor KVA invention with the individual refrigerant compressor modules 10 ₁ to 10 ₃ to take over.

The second central processing unit 156 constantly monitors the first central processing unit 154 such that it checks their function by transmitting data.

Represents the second central processing unit 156 determines that an error occurred in the first central processing unit 154 occurs, then takes over the second central processing unit 156 the control of the refrigerant compressor KVA invention with the individual refrigerant compressor modules 10 ₁ to 10 ₃ and deactivated for this purpose, the first central processing unit 154 ,

Thus, in total, the control unit 150 against a failure of the first central processing units 154 hedged.

Also some of the sensors, for example, the sensors primarily intended for measurement 62 and / or the sensors 102 . 104 . 106 and / or other sensors can be protected against failure by direct assignment of redundant sensors, for example the sensors R62 and / or the sensors R102, R104, R106, wherein these redundant sensors R62, R102, R104, R106, for example, both with the input - / output unit 164 and the input / output unit 166 can be connected, both in the control of the refrigerant compressor KVA by the first central processing unit 154 or the second central processing unit 156 to be available for the query, if the primary intended for measurement sensor 62 . 102 . 104 . 106 fails.

For operation of the control unit 150 has this one as a whole 200 designated operating unit, which in turn with a wired with the control unit 200 communicating visualization unit 202 is provided, as well as a memory 204 and a processor 206 for generating picture elements on the visualization unit 202 having the picture elements on the visualization unit 202 through the processor 206 out in the store 204 stored pixel data are generated.

In addition to the wired visualization unit 202 is a leadless with the control unit 200 communicating visualization unit 202 ' provided that communicates with the operating unit, for example, via wireless LAN, Bluetooth or other communication network and in one embodiment may be a suitable mobile phone or a tablet computer.

This is a visualization unit 202 ' portable and can be used by an operator at any time for monitoring and / or function control of the refrigerant compressor KVA.

So generates the operating unit 200 for example, as a first user interface the in 4 ₃ , which is a composition of the module picture elements B10 ₁ , B10 ₂ and B10 ₃ , wherein each of these module picture elements B10 is one of the refrigerant compressor modules 10 as picture represents.

Furthermore, the illustration according to 4 still control panels BB, which represent controls with which individual functions of the control unit 150 can be activated or deactivated.

Preferably, it can be on the visualization unit 202 in addition to the operating element BB represent a Bedienzustandandsbildelement BZB representing the operating state, for example by a light-dark difference or a color difference.

Furthermore, the overview representation according to FIG 4 nor a state pixel BZ, which indicates, for example, state data ZD of an operating condition.

To move from the overview to other representations, the visualization unit is 202 with a touch-sensitive surface 208 provided so that the visualization unit 202 , For example, designed as a so-called touch screen, so that the possibility exists, the manual touch and also a movement in a manual touch as a command for the control unit 200 to recognize.

Thus, for example, it is possible to use as a second user interface one of the module picture elements B10 ₁ to B10 ₃ as an enlarged view either by touching in the area within the respective module picture element B10 ₁ to B10 _{3 of} the overview representation or by a horizontal or vertical wiping movement or by a movement apart of two sensing points within the module picture element B10 to determine the magnification thereof.

Such, in 5 shown and then as a whole exclusively on the visualization unit 202 illustrated module picture element BM10, for example, the module picture element BM10 ₁ is, as in 5 illustrated, constructed of several pixels, for example, the module pixel B10 is composed of individual realistic compressor pixels B22, B24 and B26, which are the individual compressors 22 . 24 . 26 represent.

In this case, each of the individual compressor picture elements B22, B24, B26, as exemplified by the 5 shown, a realistic picture of the respective refrigerant compressor 22 . 24 . 26 be to help the operator through this picture element, the operation and possibly also the maintenance, since he the respective refrigerant compressor 22 . 24 . 26 does not have to identify by means of a symbol, but can identify it according to its actual appearance.

Alternatively, however, it is also possible to use an abstracted image of the respective refrigerant compressor or a symbol for the respective refrigerant compressor instead of the realistic image.

Furthermore, the module picture element B10 also has line picture elements, for example a line picture element B12 for the first refrigerant line 12 and a line icon B42 for the second refrigerant line 42 , which are shown in connection with the compressor picture elements B22, B24 and B26 and thus the refrigerant compressor 22 . 24 . 26 in connection with the first refrigerant line 12 and the second refrigerant line 42 represent.

In addition, the picture element B42 for the second refrigerant line also includes, for example, the illustration of the lubricant separator provided in the second refrigerant line B42 52 ,

Further, the module picture element B10 comprises the representation of the line picture element B54, which the lubricant supply system 54 represents and thus also the supply lines for the lubricant to the individual refrigerant compressors 22 . 24 . 26 shows.

The module picture element B10 further comprises as actuator picture elements, for example, the picture elements B32, B34 and B36, which are used to represent the motors 32 . 34 . 36 realistic pictures of these engines 32 . 34 . 36 are.

As further actuator picture elements, the module picture element B10 also includes, for example, the actuator picture elements B142, B144 and B146, which for example comprise schematic illustrations of the control elements 142 . 144 and 146 for adjusting the pressure ratio and / or the volume ratio of the refrigerant compressor 22 . 24 . 26 represent.

Further, for example, in the module picture element B10 according to FIG 5 still in the form of sensor pixels B122 and B124 sensor fields with the sensor values shown in this next to the line pattern element B54 for the lubricant supply system 54 shown to bring the respective operator, the lubricant temperature and the lubricant pressure note.

By a further manual action, either by touching one of the compressor picture elements B22, B24 or B26 or by a vertical or horizontal wiping movement or by moving apart of two scanning points in the region of one of the compressor pixels B22, B24 or B26 is an enlarged detail of one of the refrigerant compressor as a third user interface 22 . 24 . 26 , For example, the refrigerant compressor 22 through the picture element B22, possible as in 6 In this case, for example, the compressor pixel B22 without the line pixels B12 and B42 is shown.

However, an enlarged Aktorbildelement B142 is still shown in connection with the compressor pixel B22, which in an enlarged view the setting of the control 142 for adjusting the pressure ratio and / or the volume ratio of the respective refrigerant compressor, in this case the refrigerant compressor 22 , shows.

Furthermore, this representation as a sensor pixel B82 indicates an analog scale of a pressure measuring instrument, wherein a pointer in the analog scale to the respective sensor value, measured with the suction pressure sensor 82 shows.

In the same way, an analog scale with a pointer is shown as a sensor pixel B102, wherein the pointer points to the sensor value that the final pressure sensor 102 on the pressure side 92 of the refrigerant compressor 22 detected.

Finally, as an image sensor element B124 also an analog scale with a pointer is shown, wherein the pointer points to the sensor value, which is the lubricant pressure sensor 124 at the lubricant supply of the refrigerant compressor 22 measures.

Furthermore, in a picture element BAD actuator data are also shown as a display element with an analog scale, which symbolize with which pressure ratio and / or volume ratio of the refrigerant compressor 22 due to the default by the control 142 is working.

Finally, the Aktorbildelement B32 is still shown, which is the engine 32 showing the first refrigerant compressor 22 drives, and with this picture element B32 still in the form of a picture element BAD actuator data of the engine 32 shown.

As in 7 illustrated, but also by tapping on the respective line picture element B42 and / or B54 and / or by tapping a control image element BB provided for this purpose, the possibility exists as a further user interface, individual line picture elements on the visualization unit 202 such as the line picture element B42 in connection with the line picture element B54, which the lubricant supply system 54 in connection with the second refrigerant line 42 , especially in connection with the lubricant separator 52 and also in the lubricant supply system 54 arranged lubricant cooler 56 shows.

Further, in the illustration of the line picture element B42 and B54, for example, a display picture element is still shown as a sensor picture element B122, in which the image from the lubricant temperature sensor 122 measured lubricant temperature is shown in numbers.

The representation of the pixels B42 and B54 accordingly 7 , is for example called by the finger is the operating element BS is tapped, which is a control element for displaying the elements B42 and B54 with, for example, the sensor value of the lubricant temperature sensor 122 calls.

In addition, as in 8th illustrated, the possibility of another control surface through a control screen B150 the individual components of the control unit 150 in particular by the control picture elements B156 and B154 the central processor units 154 and 156 to represent and represent, for example, which of the processor units 154 and 156 is active and works.

Further, there is also the possibility of the input / output units through the control picture elements B172, B174 and B176 172 . 174 and 176 for example, how far they are active and functional.

In a further embodiment of a control unit according to the invention takes place, as in 9 shown, the representation of the refrigerant compressor 22 . 24 . 26 by the compressor pixels B22 ', B24', B26 'not realistic but abstracted to reduce the storage space for the pixel data, the refrigerant compressor 22 . 24 . 26 are recognizable as such.

In a simplified embodiment of a control unit according to the invention takes place, as in 10 shown, the representation of the refrigerant compressor 22 . 24 . 26 by the compressor pixels B22 ", B24", B26 "in the form of symbols that require even less storage space for pixel data.

Claims (54)

Control unit ( 150 ) for operating a refrigerant compressor unit (KVA), wherein the refrigerant compressor unit (KVA) comprises a first refrigerant line system (LSE) for expanded refrigerant, a second refrigerant line system (LSV) for compressed refrigerant, and at least one between the first refrigerant line system (LSE) and the second refrigerant line system (LSV ) working refrigerant compressor ( 22 . 24 . 26 ), which is powered by its own engine ( 32 . 34 . 36 ), and wherein the control unit ( 150 ) an operating unit ( 200 ), characterized in that the operating unit ( 200 ) a memory ( 204 ) for pixel data representing at least one component of the refrigerant compressor installation (KVA), that the operating unit ( 200 ) a visualization unit ( 202 ), with which by means of the pixel data of the at least one component of the refrigerant compressor installation (KVA) a visualization of this at least one component as a component picture element on the visualization unit ( 202 ) he follows. Control unit according to claim 1, characterized in that the component comprises at least one refrigerant compressor ( 22 . 24 . 26 ) and that the operating unit by means of the pixel data of the at least one refrigerant compressor ( 22 . 24 . 26 ) this refrigerant compressor ( 22 . 24 . 26 ) as a compressor pixel (B22, B24, B26) on the visualization unit ( 202 ). Control unit according to one of the preceding claims, characterized in that the component at least one refrigerant line ( 12 . 42 ) and that the operating unit ( 200 ) by means of the pixel data of the at least one refrigerant line ( 12 . 42 ) this at least one refrigerant line ( 12 . 42 ) as a line picture element (B12, B42) on the visualization unit ( 202 ). Control unit according to one of the preceding claims, characterized in that the component has at least one sensor ( 62 . 82 . 84 . 86 . 102 . 104 . 106 ) and that the operating unit ( 200 ) by means of the pixel data of the at least one sensor ( 62 . 82 . 84 . 86 . 102 . 104 . 106 . 124 . 126 . 128 ) the at least one sensor (B82, B102, B124) on the visualization unit ( 202 ) represents as a sensor pixel. Control unit according to claim 4, characterized in that the operating unit ( 200 ) a memory ( 204 ) for sensor data and that the operating unit ( 200 ) the sensor data on the visualization unit ( 202 ). Control unit according to claim 5, characterized in that the sensors ( 82 . 84 . 86 . 102 . 104 . 106 . 124 . 126 . 128 ) are displayed as part of the sensor data. Control unit according to claim 5 or 6, characterized in that the sensor values are represented by a display element of the sensor pixel (B82, B102, B124). Control unit according to one of claims 5 to 7, characterized in that the sensor values are represented as numbers in the sensor pixel (B122, B124). Control unit according to one of claims 4 to 8, characterized in that the representation of the sensor pixel (B102, B82, B124) takes place at the location of the refrigerant compressor unit (KVA) at which the sensor ( 82 . 102 . 124 ) detects the respective sensor value. Control unit according to one of the preceding claims, characterized in that the component has at least one actuator ( 32 . 34 . 36 . 142 . 144 . 146 ) of the refrigerant compressor installation (KVA) and that the operating unit ( 200 ) by means of the pixel data of the at least one actuator this actuator ( 32 . 34 . 36 . 142 . 144 . 146 ) as an actuator pixel (B32, B34, B36, B142) on the visualization unit ( 202 ). Control unit according to claim 10, characterized in that the operating unit ( 200 ) a memory ( 204 ) for actuator data (BAD) and that the operating unit ( 200 ) the actuator data on the visualization unit ( 202 ). Control unit according to claim 10 or 11, characterized in that that of the actuator ( 32 . 34 . 36 . 142 . 144 . 146 ) are displayed associated Aktordaten the Aktorbildelement (B32, B34, B36, B142). Control unit according to claim 12, characterized in that the actuator data are represented by a display element (BAD). Control unit according to claim 12 or 13, characterized in that the actuator data (BAD) are represented as numbers. Control unit according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the operating unit ( 200 ) a memory ( 204 ) for picture element data for displaying at least one operating state of the refrigerant compressor installation (KVA) and that by the operating unit ( 200 ) by means of the pixel data of the at least one operating state of the refrigerant compressor installation (KVA) a visualization of the at least one operating state of the refrigerant compressor installation (KVA) as a state image element (BZ), on the visualization unit ( 202 ) he follows. Control unit according to claim 15, characterized in that the representation of the state picture element (BZ) takes place in connection with the respective component picture element to which the operating state is assigned. Control unit according to Claim 16, characterized in that the status picture element (BZ) is displayed as a status field assigned to the individual component picture elements. Control unit according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the operating unit ( 200 ) a memory ( 204 ) for pixel data for displaying at least one operating element of the operating unit ( 200 ) and that by the operating unit ( 200 ) by means of the picture element data of the at least one operating element of the operating unit ( 200 ) the visualization of the control element as a control element (BB) on the visualization unit ( 202 ) he follows. Control unit according to claim 18, characterized in that the memory ( 204 ) Pixel data for representing at least one operating state of the respective operating element of the operating unit ( 200 ) and that by the operating unit ( 200 ) by means of the picture element data of the respective operating state of the operating element, the visualization of the respective operating state of the operating element of the refrigerant compressor installation (KVA) as operating state picture element (BZB) on the visualization unit ( 202 ) he follows. Control unit according to claim 19, characterized in that the operating state picture element (BZB) on the visualization unit ( 202 ) the respective control element picture element (BB) is shown assigned. Control unit according to one of the preceding claims, characterized in that the visualization unit ( 202 ) is designed so that by a manual interaction with one of the illustrated picture elements of the operating unit ( 200 ) an instruction can be generated. Control unit according to Claim 21, characterized in that the visualization unit ( 202 ) as a touch-sensing visualization unit ( 202 ) and that the manual interaction by manually touching a surface of the visualization unit ( 202 ) in the area of the visualization unit ( 202 ) is performed. Control unit according to one of claims 21 or 22, characterized in that the transmitted command is a call for a further representation of at least one picture element. Control unit according to claim 23, characterized in that the further representation is a modified representation of the same or of a further picture element. Control unit according to one of the preceding claims, characterized in that the visualization unit ( 202 ) with the operating unit ( 200 ) communicates with the cable. Control unit according to one of the preceding claims, characterized in that the visualization unit ( 202 ' ) with the operating unit ( 200 ) communicates without wires. Control unit according to Claim 25 or 26, characterized in that the visualization unit ( 202 ' ) is a portable unit. Method for operating a refrigeration compressor system (KVA) by means of a control unit ( 150 wherein the refrigerant compressor unit (KVA) includes a first refrigerant refrigerant piping (LSE), a second compressed refrigerant piping (LSV), and at least one refrigerant compressor (LSE) and the second refrigerant piping (LSV) ( 22 . 24 . 26 ), which is powered by its own engine ( 32 . 34 . 36 ), and wherein the control unit ( 150 ) an operating unit ( 200 ), characterized in that the operating unit ( 200 ) Pixel data representing at least one component of the refrigerant compressor installation (KVA) that is stored by the operating unit ( 200 ) by means of the pixel data of the at least one component of the refrigerant compressor installation (KVA) a visualization of this at least one component as a component picture element on the visualization unit ( 202 ) is performed. A method according to claim 28, characterized in that the component at least one refrigerant compressor ( 22 . 24 . 26 ) and that the operating unit by means of the pixel data of the by means of at least one refrigerant compressor ( 22 . 24 . 26 ) this refrigerant compressor ( 22 . 24 . 26 ) as a compressor pixel (B22, B24, B26) on the visualization unit ( 202 ). Method according to one of claims 28 or 29, characterized in that the component at least one refrigerant line ( 12 . 42 ) and that the operating unit ( 200 ) by means of the pixel data of the at least one refrigerant line ( 12 . 42 ) this at least one refrigerant line ( 12 . 42 ) as a line picture element (B12, B42) on the visualization unit ( 202 ). Method according to one of claims 28 to 30, characterized in that the component (at least one sensor 62 . 82 . 84 . 86 . 102 . 104 . 106 ) and that the operating unit ( 200 ) by means of the pixel data of the at least one sensor ( 62 . 82 . 84 . 86 . 102 . 104 . 106 . 124 . 126 . 128 ) the at least one sensor (B82, B102, B124) on the visualization unit ( 202 ) represents as a sensor pixel. Method according to claim 31, characterized in that the operating unit ( 200 ) stores sensor data and that the operating unit ( 200 ) the sensor data on the visualization unit ( 202 ). Method according to claim 32, characterized in that that of the sensors ( 82 . 84 . 86 . 102 . 104 . 106 . 124 . 126 . 128 ) are displayed as part of the sensor data. A method according to claim 32 or 33, characterized in that the sensor values are represented by a display element of the sensor pixel (B82, B102, B124). Method according to one of claims 32 to 34, characterized in that the sensor values are represented as numbers in the sensor pixel (B122). Method according to one of claims 31 to 35, characterized in that the representation of the sensor pixel (B102, B82, B124) takes place at the location of the refrigerant compressor plant (KVA) at which the sensor ( 82 . 102 . 124 ) detects the respective sensor value. Method according to one of claims 28 to 36, characterized in that the component at least one actuator ( 32 . 34 . 36 . 142 . 144 . 146 ) of the refrigerant compressor installation (KVA) and that the operating unit ( 200 ) by means of the pixel data of the at least one actuator this actuator ( 32 . 34 . 36 . 142 . 144 . 146 ) as an actuator pixel (B32, B34, B36, B142) on the visualization unit ( 202 ). Method according to claim 37, characterized in that the operating unit ( 200 ) Stores actuator data and that the operating unit ( 200 ) the actuator data on the visualization unit ( 202 ). Method according to claim 37 or 38, characterized in that that of the actuator ( 32 . 34 . 36 . 142 . 144 . 146 ) are displayed associated Aktordaten the Aktorbildelement (B32, B34, B36, B142). A method according to claim 39, characterized in that the actuator data are represented by a display element (BAD). A method according to claim 29 or 40, characterized in that the actuator data (BAD) are represented as numbers. Method according to the preamble of claim 28 or according to one of claims 28 to 41, characterized in that the operating unit ( 200 ) Stores picture element data representing at least one operating state of the refrigerant compressor installation (KVA) and that the operating unit ( 200 ) by means of the pixel data of the at least one operating state of the refrigerant compressor installation (KVA) a visualization of the at least one operating state of the refrigerant compressor installation (KVA) as a state image element (BZ), on the visualization unit ( 202 ) is performed. A method according to claim 42, characterized in that the representation of the state picture element (BZ) takes place in connection with the respective component picture element to which the operating state is assigned. A method according to claim 43, characterized in that the state picture element (BZ) is displayed as the individual component picture elements associated state field. Method according to the preamble of claim 28 or according to one of claims 28 to 44, characterized in that the operating unit ( 200 ) Pixel data for displaying at least one operating element of the operating unit ( 200 ) and that from the operating unit ( 200 ) by means of the picture element data of the at least one operating element of the operating unit ( 200 ) the visualization of the operating elements as operating picture elements (BB) on the visualization unit ( 202 ) is performed. Method according to claim 45, characterized in that the operating unit ( 200 ) Pixel data for representing at least one operating state of the respective operating element of the operating unit ( 200 ) and that from the operating unit ( 200 ) by means of the picture element data of the respective operating state of the control element, the visualization of the operating state of the control element of the refrigerant compressor installation (KVA) as operating state picture element (BZB) on the visualization unit ( 202 ) is performed. A method according to claim 46, characterized in that the operating state pixel (BZB) on the visualization unit ( 202 ) is displayed assigned to the respective control element picture element (BB). Method according to one of claims 28 to 47, characterized in that the visualization unit ( 202 ) is designed so that by a manual interaction with one of the picture elements of the operating unit ( 200 ) a command is generated. Method according to claim 48, characterized in that the visualization unit ( 202 ) as a touch-sensing visualization unit ( 202 ) and that the manual interaction by manually touching a surface ( 208 ) of the visualization unit ( 202 ) in the area of the visualization unit ( 202 ) is performed. Method according to one of Claims 48 or 49, characterized in that the transmitted command is a call for a further representation of at least one picture element. A method according to claim 50, characterized in that the further representation is a modified representation of the same or of a further picture element. Method according to one of the preceding claims, characterized in that the visualization unit ( 202 ) with the operating unit ( 200 ) communicates with the cable. Method according to one of the preceding claims, characterized in that the visualization unit ( 202 ' ) with the operating unit ( 200 ) communicates without wires. Method according to claim 52 or 53, characterized in that the visualization unit ( 202 ' ) is carried by an operator.

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