KR100690937B1 - Controller for stand-alone building equipment - Google Patents

Abstract

A stand-alone building control device is provided to save expenses by controlling individual stand-alone equipment of each equipment control group without using a central monitor device, as a direct control device independently controls each equipment. An input part(210) receives a sensing signal from the equipment. A control information storing part(220) stores control information for controlling the equipment. A controller(230) generates a control signal for controlling the equipment by operating the received sensing signal and the control information. An output part(240) outputs the control signal, and a screen display part(250) displays the control information or other information related to control. A user input part(260) interfaces a user. The control information is set or changed by the information inputted from the user input part and the sensing signal is received through a static current switching input mode.

Description

Controller for stand-alone building equipment

1 is a block diagram of a building control system according to the prior art,

2 is a block diagram of a stand-alone building control apparatus according to an embodiment of the present invention,

3 is a front view of a stand-alone building control apparatus according to an embodiment of the present invention,

4 is an exemplary view showing a combination of control information in the cascade form according to an embodiment of the present invention,

5 is a detailed configuration diagram of an input unit and an amplifier according to an embodiment of the present invention;

Figure 6 (a) to Figure 6 (c) is an enlarged rear view showing the main portion of the back of the case according to a preferred embodiment of the present invention and a stand-alone building control device according to a preferred embodiment of the present invention on a DIN rail It is an exemplary view showing the process of fixing.

<Explanation of symbols for the main parts of the drawings>

210: input unit 211: constant current source

212: first switching unit 213: second switching unit

220: storage unit 230: control unit

240: output unit 250: screen display means

260: user input means 270: amplification unit

271: magnification selector 272: voltage correction circuit

273: decompression and overvoltage protection circuit 274: A / D converter

275: constant voltage source 280: communication unit

290: case 291: upper groove

292: Lower groove 293: V-shaped spring

294: slope 295: removable space

296: DIN rail

The present invention relates to a control device for controlling a facility provided in a building, and more specifically, independent building control capable of independently controlling a facility by a user's input in a site equipped with a unique facility without a control system. Relates to a device.

1 is a block diagram of a building control system according to the prior art. As shown in Figure 1, the building control system 100 according to the prior art is a direct control of each facility in order to control various equipment, such as water supply and drainage, air conditioning, electrical, fire extinguishing in the building The control device (DDC) 110 is provided, and further, an expansion I / O module (XIM, 115) may be further provided to control a plurality of facilities.

In addition, data collected by the master controller 120 through a network 130 such as a master controller (MCU, 120), BACNET to manage these direct control devices 110 and collect data from the direct control device 110. Based on the control system consists of one or more central control unit (CCMS, 140) to monitor and control the entire system 100 is made of the control of various equipment in a place away from the facility, such as a control room.

However, in the conventional building control system 100 as described above, there is a problem in that the facility cannot be controlled by the direct input of the user at the site where the facility is provided.

That is, when a problem occurs in the network 130 connecting the direct controller 110, the master controller 120 and the central control unit 140, there is a problem that the control of all the facilities in the building is impossible.

In addition, even if you want to control only a small number of facilities, it is necessary to have a complete system including a central control device to control the facilities, which requires a lot of cost. Moreover, new functions can be implemented according to the facility environment and work environment. Even when a demand arises, there is a problem that it is impossible to set up a maneuverable environment due to the centralized control method, and there is a problem that it is difficult to directly monitor the control and operation of each facility.

The present invention was devised to solve the above-described problems, and by controlling each facility independently on the direct control device, so that it is possible to control independent individual facilities for each facility control group without using a central control device. The purpose is to provide a stand-alone building control that can reduce the waste of money.

Another object is to provide a stand-alone building control device that does not cause the entire system to paralyze even if a network problem occurs.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. In addition, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

The present invention for achieving the above object is a control device for directly controlling one or more facilities provided in the building, an input unit for inputting a sensing signal which is a signal sensed from the facility; A control information storage unit for storing control information which is information for controlling the facility; A controller configured to generate the control signal for controlling the facility by calculating the input sensing signal and the control information; An output unit for outputting the control signal; Screen display means for displaying the control information or other information relating to the control; And user input means for a user interface, wherein the control information is set or changed by information input to the user input means.

The control information may be one or more pieces of information selected from a type of an input signal input from the facility, a unit of an input signal, a setting range related to control of the facility, and control operation time information.

In addition, the control unit, the control block is provided with one or more individual function block in which the algorithm for control of the facility is implemented, the function block is combined in the cascade form by the value input through the user input means for the control information Is preferably set.

In addition, the sensing signal is preferably input through the constant current switching input method.

In addition, the input unit and the output unit includes one or more analog or digital input terminals and output terminals, and the control unit selects the input terminal and the output terminal based on the control information to receive a sensing signal or output a control signal. More preferably.

On the other hand, the present invention may further include an amplifier for amplifying a predetermined multiple so as to correspond to the case where the sensing signal is a voltage base when the sensing signal is a resistance or a current base.

The present invention may further include a communication unit capable of transmitting and receiving data with another system using one of MODBUS, BACNET, and X-MODEM protocols, and is preferably driven in connection with the other system through the communication unit.

Here, it is more preferable that the algorithm of the control information or the function block is updated from the outside through the communication unit.

The control unit may include a ROM region and a RAM region. The ROM region stores boot information of an independent building control apparatus and an application for executing driving firmware. The firmware upgrade is an independent building control apparatus. After the reset, the information stored in the ROM area may be transmitted to the RAM area, and the application may update the ROM area information using firmware received through the communication unit.

Furthermore, in the present invention, the control information is preferably input or changed only when information corresponding to previously stored authentication information is input through the user input means.

Lastly, the present invention further includes a case in which each component is physically housed, and an upper groove and a lower groove coupled to a fixing DIN rail are provided at one side of the case rear, and a DIN rail at one side of the lower groove. A V-shaped spring is provided for sliding engagement with the upper surface, and an inclined surface for forming a detachable space between the upper groove and the DIN rail is more preferably formed at the bottom of the rear of the case.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to explain their invention in the best way. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, a standalone building control apparatus according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 and 3. In the description, the same reference numerals as in FIG. 1 refer to the same member performing the same function.

2 is a block diagram of a stand-alone building control apparatus according to an embodiment of the present invention, Figure 3 is a front view of a stand-alone building control apparatus according to a preferred embodiment of the present invention.

As shown in FIG. 2, the stand-alone building control apparatus 200 includes an input unit 210, a storage unit 220, a control unit 230, an output unit 240, and a screen display unit 250.

The input unit 210 is a configuration in which a sensing signal, which is a signal sensed from a facility, is input, and the analog signal input terminal 210a as shown in FIG. 3 to be flexible and easy to expand according to physical characteristics of various sensors provided in the facility. And a digital signal input terminal 210b, which can receive a wide variety of signals.

Here, the sensing signal may be various data that may be an indicator of the control state of the equipment as well as data such as temperature, humidity, time, pressure, current, voltage, and resistance according to the type of equipment.

It is to be understood that the sensing signal is merely an example in which various data can be transmitted according to the function or physical characteristics of the installed equipment, and that various data transmissions can be understood by those skilled in the art according to the installation environment.

The storage unit 220 stores control information that is information for controlling the facility. Such control information may be input or changed by the user input means 260 which will be described below. A detailed description thereof will be described later in detail with the description of the controller 230.

The storage unit 220 may be integrated into the control unit 230 according to the designer's choice. Since the storage unit 220 refers to a circuit logical configuration in which control information is stored, it is obvious that the storage unit 220 does not necessarily need to be physically divided.

Meanwhile, the controller 230 generates a control signal for controlling the facility by calculating the sensing signal input through the input unit 210 and the control information stored in the storage unit 220.

Such control information may include a type of input signal input from the facility, a unit of the input signal or a setting range for the control of the facility, and control operation time information, but is not limited thereto. Any other information necessary for controlling the facility may be used. Can be applied.

The output unit 240 is a configuration for outputting the control signal generated by the control unit 230, each facility is controlled by receiving the control signal through the output unit 240.

The output unit 240, like the input unit 210, as shown in Figure 3 to output a plurality of analog or digital signals for the purpose of control versatility, as shown in Figure 3 and the digital signal output terminal 240b It is desirable to be configured to be able to output a variety of signals sufficiently.

The screen display means 250 is configured to allow the user to monitor the equipment's control status or other information related to the control while controlling the equipment through the standalone building controller of the present invention.

Here, the other information may be output in a form in which the sensing signal is modified to facilitate the recognition of the user, and other various facilities for the facility to allow the user to easily monitor the operating state of the facility or to easily change the control information. Information.

That is, the screen display means 250 refers to a configuration for performing an interface function between the stand-alone building control device and the user according to the present invention when a user or the like performs the operation of changing or replacing the control information. Should be interpreted.

The screen display means 250 may have a form such as an LCD window with a backlight as shown in FIG. 3, and furthermore, the control information and other information may be easily recognized by the user through the LCD window. Or it is preferably output in the form of numbers.

On the other hand, the control unit 230 is provided with a separate function block in which the algorithm for the control of the facility is implemented, the function block is combined in the cascade form by the value input from the user through the user input means 260 to control information Can be set.

In detail, FIG. 4 illustrates an example in which control information on a convection pump, which is one of air conditioning facilities, is set through the above-described method. As shown in FIG. 4, in the present invention, a relationship or a function of input / output of a control device may be set in a cascade form.

By allowing the control information to be set in the cascade form, the user has the advantage of being able to set or change the control information of the facility more intuitively and easily.

At this time, the control unit 230 is such that the control information is applied to the actual equipment before the equipment operation, it is possible to forcibly set the input value of the function block in order to reflect the result value according to each input condition, it is executed for each function block It is desirable to have a simulation function that can verify individual function blocks and overall control information with the / stop attribute.

In addition, the present invention is divided into the basic function for implementing the general and standardized logic and the application function block to perform a specific function, and performed by combining the basic function block and the application function block according to the installation environment or control environment It is preferable that it is comprised so that.

Furthermore, the control unit 230 may be input or changed only when information corresponding to the authentication information stored in the storage unit 220 is input through the user input means 260. By making the authentication process before inputting or changing the control information, the effect of preventing indiscriminate control of the equipment is created.

Hereinafter, a process of measuring a sensing signal according to an exemplary embodiment of the present invention will be described with reference to FIG. 5. In the description, the same reference numerals as those of FIG. 1 or FIG. 2 refer to the same members performing the same function, and the description of the members described above will be omitted.

5 is a detailed configuration diagram of an input unit and an amplifier according to an embodiment of the present invention. As shown in FIG. 5, first, when a plurality of sensing signals are input through the input unit 210, the first switch unit 212 and the second switch 213 are controlled by the control unit 230. After selecting one of the signals, the value of the sensing signal is measured through the constant current source 211.

In the present invention, since the constant current source is used to measure the sensing signal, the linear characteristic can be used to measure an accurate value compared to the conventional method using the constant voltage source having the nonlinear characteristic.

That is, when measuring using the constant current source, if the sensor to be sensed is a resistance base, the principle of distribution can be made exactly, and through this, it is possible to derive an improvement in linearity of the measurement result.

Through this, it is possible to effectively perform the measurement or prediction work of the control equipment, it is possible to increase the resolution when the results are released by improving the discrimination of the measurement data during the measurement work.

In addition, in the present invention, since a current passes only in a channel for switching and sensing each channel while using only one constant current source, an effect of preventing a self-heating error that may occur in an input terminal is created.

On the other hand, the first switch unit 212 and the second switch unit 213 not only selects a channel but also pulls down a resistance of 100 kV when the sensing signal is a current base. It is preferable that a configuration for converting the base signal into a voltage base signal in the range of 0 to 2V is provided.

On the other hand, the sensing signal selected by the first switch unit 212 and the second switch 213 is input by the magnification selector 281 if the sensing signal is a voltage base according to the type of the signal (x1) If the input signal is a resistance base or a current base, it is selectively amplified, such as 5 times amplification.

In the present invention, by measuring the range of the sensing signal input from 0 to 2V, or 0 to 10V by 0 to 10V, the value of the measured sensing signal can be expressed in a flattened size to be easily recognized by the user.

In addition, the amplified sensing signal is compensated for errors due to amplification through the voltage correction circuit 282, and 0 ~ 10V that the A / D converter 284 can receive through the decompression and input overvoltage protection circuit 283. After the conversion to the voltage range is transmitted to the controller 230 together with the voltage of the constant voltage source, the value is calculated by the controller 230.

Thus, through the configuration of amplifying a predetermined multiple according to the type of the sensing signal, the present invention has an advantage of outputting the value of the measured sensing signal at the maximum resolution that is easily recognized by the user.

Meanwhile, the stand-alone building control apparatus 200 according to an exemplary embodiment of the present invention may further include a communication unit 280 capable of transmitting and receiving data with another system using a protocol such as MODBUS, BACNET, or X-MODEM. have.

The present invention not only can control the equipment independently in the field through this configuration, but also creates an effect that can be driven in conjunction with other systems.

Furthermore, the present invention can control the equipment through the central control similarly to the existing by receiving the control information from an external device such as the central control system 140 through the communication unit 280 as described above.

In addition, it is preferable that the algorithm of the function block for controlling the equipment is also configured to enable various operations.

On the other hand, the controller 230 of the present invention may be divided into a ROM region (not shown) and a RAM region ROM region (not shown) in which the boot information of the standalone building control apparatus and the application for executing the running firmware are stored.

Through this configuration, the present invention transmits the information stored in the ROM area to the RAM area after being reset by a power-on reset or watchdog reset, and the application transmits the communication unit 280. The firmware upgrade may be achieved by updating the ROM area information using the firmware received through the firmware.

Since the present invention enables remote firmware upgrade through such a configuration, the user does not have to visit the device equipped with the stand-alone building control device 200 to upgrade the firmware, thereby improving user convenience.

In addition, the present invention is also possible to upgrade the firmware by the emulator (In-Circuit Emulator) widely used in the past.

Hereinafter, a method of coupling the independent building control apparatus 200 to the DIN rail 296 according to an exemplary embodiment of the present invention will be described with reference to FIGS. 6 (a) to 6 (c). In the description, the same reference numerals as those in Fig. 1 or 2 refer to the same member performing the same function.

First, Figure 6 (a) is an enlarged rear view showing the main portion of the back of the case according to an embodiment of the present invention. As shown in Figure 6 (a) on one side of the back of the case 290 according to an embodiment of the present invention, a fixed DIN rail provided at a position to be fixed to the independent building control device 200, such as a wall surface ( The upper groove 291 and the lower groove 292 is coupled to the 296 is provided.

In addition, one side of the lower groove 292 is provided with a V-shaped spring (293) to enable the DIN rail 296, the upper groove 291 and the lower groove 292 to support the coupled state by elasticity.

Since the V-shaped spring 293 is a source of physical force that the device according to the present invention is strongly coupled to the DIN rail, it is preferable to use a member having sufficient support and elastic force in consideration of the weight of the device.

Furthermore, in order to form the detachable space 295 so that the DIN rail 296 may be easily coupled with the upper groove 291 again in a state where the DIN rail 296 is coupled with the lower groove 292 in advance, It is preferable that the inclined surface 294 is provided.

Independent building control apparatus 200 according to an embodiment of the present invention having the structure as described above, first, the lower projection and the lower groove 292 of the DIN rail 296 provided on the wall as shown in Figure 6 (b) ) Is coupled and the V-shaped spring 293 is sufficiently retracted to form a detachable space 295 for wall attachment of the upper surface of the control device, and the inclined surface 294 is in contact with the wall surface.

Next, as shown in FIG. 6 (c), the stand-alone building control device 200 moves toward the wall (with a DIN rail) centering on the lower groove 292 in a state where the V-shaped spring 293 is contracted. The upper groove 291 is positioned in line with the upper protrusion of the DIN rail 296.

Finally, when the stand-alone building control device 200 descends and the upper groove 291 is coupled to the upper protrusion of the DIN rail 296, the stand-alone building control device 200 is DIN rail by the elasticity of the V-shaped spring 293. It is firmly fixed at 296.

The present invention can be easily coupled to the DIN rail stand alone building control device 200 of the present invention is not easy to mount and detach due to the size and weight compared to the object mounted on the DIN rail through the above-described coupling structure. In addition, there is an advantage that can be very easy to change the installation position through this.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

According to the present invention, it is possible to control each facility independently on the direct control device, it is possible to control the individual facilities without using the central control device can reduce the waste of cost.

In addition, even if a network problem occurs, it is possible to operate the facility control group independently, there is an advantage that the problem that the entire system is not paralyzed.

In addition, by using a constant current switching method for receiving a sensing signal, it has a linear characteristic has the advantage that more accurate measurement and prediction is possible.

Furthermore, the remote firmware update can be performed to increase user convenience.

In addition, since the position can be fixed by using a DIN rail, there is an advantage in that the attachment and detachment is easy and the position can be freely changed.

Claims (11)

A control device for directly controlling one or more facilities provided in a building, An input unit to which a sensing signal, which is a signal sensed by the facility, is input; A control information storage unit for storing control information which is information for controlling the facility; A controller configured to generate the control signal for controlling the facility by calculating the input sensing signal and the control information; An output unit for outputting the control signal; Screen display means for displaying the control information or other information relating to the control; And A user input means for the user interface, The control information is set or changed by the information input to the user input means, And the sensing signal is input through a constant current switching input method. The method of claim 1, wherein the control information, And at least one piece of information selected from a type of an input signal input from the facility, a unit of an input signal, a setting range related to control of the facility, and control operation time information. The method of claim 2, wherein the control unit, At least one individual function block in which an algorithm for controlling the facility is implemented, And the function block is combined in a cascade form according to a value input through the user input means to set the control information. delete The method of claim 1, wherein the input unit and output unit, One or more analog or digital input and output terminals, The control unit, And an input terminal and an output terminal based on the control information to receive a sensing signal or output a control signal. The method of claim 5, And an amplifier configured to amplify a predetermined multiple of the signal when the sensing signal is a resistor or a current base, so as to correspond to the case where the sensing signal is a voltage base. The method of claim 6, Further comprising a communication unit capable of transmitting and receiving data with another system using one of MODBUS, BACNET or X-MODEM protocol, Independent building control apparatus, characterized in that driven in conjunction with the other system through the communication unit. The method of claim 7, wherein Independent building control device, characterized in that the control information or the algorithm of the function block is updated from the outside through the communication unit. The method of claim 8, wherein the control unit, ROM area and RAM area are provided separately, The ROM region stores boot information of an independent building control device and an application for executing driving firmware. The upgrade of the firmware, And after resetting the standalone building control device, transmits the information stored in the ROM area to the RAM area, and updates the ROM area information by using the firmware transmitted by the application through the communication unit. The method of claim 9, And control information is input or changed only when information corresponding to previously stored authentication information is input through the user input means. The method of claim 9, Further comprising a case in which each component is physically housed, The upper groove and the lower groove coupled to the DIN rail for fixing is provided at one side of the rear of the case, One side of the lower groove is provided with a V-shaped spring for sliding coupling with the DIN rail, Independent building control device, characterized in that the inclined surface for forming a detachable space of the upper groove and the DIN rail is formed on the lower rear of the case.

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