FI67966C - ANORDINATION FOR THE CONSTRUCTION OF THE AIR CONDITIONING CLIMATE TRAINING SYSTEM FOR INTERMITTED CONDITIONING BYGGNAD - Google Patents

Description

_ PATENT PUBLICATION / nQ /, • Jgg *. £ C] (11) patent application 6/966 (51) Κν.Λπί · α * G 05 D 23/19 (2.1) Patent application - Pitentansöknlng 780351 (22) Application date - Ansöknlngsdag 03 * 02.78 (23) Starting date - Giltlghetsdag 03 * 02.78 FINLAND (41) Has become public - Blivit offentllg 17 * 08.78 <nv (^ 4) Date of publication and hearing. - 28 02 85 (rl) Ansökan utlagd och utl.skriften publicerad * '3 (45) Patents granted - Patent meddelat 10.06.85

Patent and Registration Office

Patent-och registerstyrelsen (32) (33) (31) Privilege claimed - Begärd prloritet 16.02.7 7

Sweden-Sweden (SE) 7701733 ~ 3 (73) Elgab LG Johansson AB, Atlasvägen, S-777 00 Smedjebacken, Sweden-Sweden (SE) (72) Ulf Lennart Ernfrid Nyberg, Äkersberga, Sweden-Sweden (SE) (71 *) ) The present invention relates to a device for controlling the air conditioning system of a building used intermittently. An alternative designation for such systems is the heating and ventilation system.

Examples of occasional buildings include industrial, office and commercial properties, as well as schools. Such buildings require an indoor temperature and ventilation equivalent to good comfort only during the period when the buildings are in use. In order to save energy, it is therefore possible to allow, for example, a significant drop in indoor temperature and to reduce or switch off ventilation during periods when buildings are not in use. In view of the greatly increased energy costs in recent years, this opportunity to save energy is increasingly being used in occasionally used buildings by installing devices that control the heating and ventilation systems in the buildings over time. In this case, conventional time clocks with adjustable mechanical cut-off and shut-off contacts have been used as the main control element. These time clocks stipulate, on the one hand, the times at which normal periods of use in buildings end and the reduction or deactivation of heating and ventilation systems, and, on the other hand, the times at which heating and ventilation systems must be restarted at full capacity in order to the desired temperature and ventilation conditions would prevail when new operating cycles begin.

One obvious disadvantage of known control devices is that they are very limited in terms of the possible pre-adjustment of control programs which include longer periods and considerable variations in the operating times of buildings from one day to the next and from one week to the next. Another disadvantage of the known devices is that they cannot control several different functions separately, which is necessary in many buildings due to e.g. the relatively complex structure of heating and ventilation systems and / or the varying operating periods of different parts of the buildings. In addition, the known devices have the disadvantage that they cannot usually be adapted to the time control of the heating and ventilation systems provided by them, e.g. according to a factor important for the best control, such as the outdoor temperature. Admittedly, devices have been proposed in which such a certain adaptation is possible. However, the proposed devices have been mechanically complex and expensive.

The object of the invention is to develop an improved control device of the type mentioned in the introduction, in which the above-mentioned disadvantages have been eliminated. To this end, it is proposed according to the invention that the device includes a numerical memory for storing information about the time slots during which the building is used, a calculator that calculates a multi-parameter time correction factor and generates corresponding numerical output signals, a numeric clock and a control command for numerical output signals from the clock and counter. connected to the memory and designed to provide control instructions corresponding to the information stored in the memory, corrected taking into account the time correction factor calculated by the counter, to the air conditioning system.

The invention makes it possible to provide a control device which is very flexible both in terms of the number of control functions and their desired temporal variations and which also allows different control functions to be adapted to many different factors, such as the indoor temperature, the outside temperature and the future use of the building. to the desired internal temperature.

The invention will now be described in more detail with reference to the accompanying drawing, which shows a block diagram view of a device according to the invention which controls the heating and ventilation system of a building used from time to time as a function of time.

The device shown in the drawing includes a numerical memory 10, a control carcass generator 11, a counter 12 and a numerical clock 13.

The memory 10 is intended to store information about the time intervals during which the building is intended to be used and when an indoor climate corresponding to the desired comfort must be maintained by means of the heating and ventilation system included in the building. The building in question. An operating program can be stored in binary form in the memory 10, so that the various successive short periods of respective cells is supplied to the "1" or "0" depending on whether the building intended for use in or not during the periods, each of which may e.g. comprise a half or whole hour.

The control hand cigenerator 11 is connected to the memory 10 in order to act as a sensor in relation to this stored program and to give commands dependent thereon to the heating and ventilation system via a plurality of outputs 14. The development of control commands in the control command generator 11 is controlled by the numerical output signals input from the clock 13 and the counter 12.

The function of the counter 12 is to calculate one or more different time correction factors to correct the time at which certain control commands are generated in the control command generator 11, taking into account the various parameters to be taken into account in the control of the heating and ventilation system. These parameters can be e.g.

67966 be the prevailing outdoor temperature, the prevailing indoor temperature at one or more points in the building, the desired indoor temperature, etc. Information on the values of said parameters can be fed to the counter 12 from the sensors 15 and the control elements 16.

The device can be made such that said correction at the time when control commands are generated for the heating and ventilation system, taking into account the time correction factor calculated by the counter 12, occurs only when the system needs to be affected in order to achieve a period after the building has been idle. restoration of the indoor climate that is to be maintained during the periods of use of the building. A corresponding correction for the development of control commands does not normally need to be made when the heating and ventilation system has to be operated in the opposite direction, i.e. when moving from a period of use to a period when the building is not in use.

The memory 10 may well be divided into two parts, one of which is intended to store a normal program for use in a building, e.g. one week long, and the other is used to store a special program comprising a longer period, e.g. several weeks. In this case, the control command generator 11 can be connected to the latter memory part in order to act as a sensor in relation to this stored special program. In addition, the memory portion of the special program can be designed so that as the program stored therein is fed out to the control tip generator, a normal program stored in the first memory portion is fed to it, which must be kept stored in the first memory portion until the normal program is changed. the memory part. By dividing the memory 10 in two parts, it is possible to enter in the special program memory part for a relatively long period of time such changes to the normal program as desired taking into account holidays, holidays, etc., while ensuring automatic return to the normal program at the end of the entered special program.

Claims (2)

5 Claims: 6 V 9 6 6 Device for controlling a time-dependent system for detecting a periodically used building, characterized in that it comprises a numerical memory (10) for storing information on the time slots during which the building is used, a calculator (12) which calculates a multi-parameter time correction factor and generates corresponding numerical output signals, a control command generator (11) controlled by a numerical clock (13) and numerical output signals from the clock and a counter, connected to the memory (10) and designed to provide control commands corresponding to the information stored in the memory, corrected for the time correction factor calculated by the counter (12), air conditioning system. Device according to claim 1, characterized in that the memory (10) is divided into two parts, namely a first part in which a normal program for building use is stored, comprising a shorter period, e.g. a week, and a second part in which a special program is stored, which comprises a longer period, e.g. several weeks, in which the control instruction generator (11) is connected to a second memory part for inputting data therefrom and the second memory part is designed to input data from the first memory part corresponding to the normal program stored therein , which is kept stored in the first memory section until a new program is entered here.