KR101832837B1 - Method and system for automatic building control - Google Patents

Abstract

The present invention relates to a method and a system for automatically controlling a building. The method comprises the steps of: receiving a sensor signal output from a sensor in response to an operation state and an operation environment; using the sensor signal and prestored operation conditions of a device to be controlled to generate a control signal for controlling operations of the device to be controlled, and transmitting the control signal to the device to be controlled; using the sensor signal and the control signal to generate operation information of the device to be controlled; receiving ID information of a first portable terminal when a certain first portable terminal approaches, and checking a device to be controlled corresponding to the first portable terminal in an authentication list; and using a local area wireless communication to transmit the operation information of the checked device to be controlled to the first portable terminal. According to the present invention, since only portable terminal authenticated by information generated in the system for automatically controlling a building can approach, a security of the system for automatically controlling a building can be improved.

Description

[0001] METHOD AND SYSTEM FOR AUTOMATIC BUILDING CONTROL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building automatic control method and system, and more particularly, to a building automatic control method and system with enhanced security and problem coping ability.

[0002] In recent years, medium- to large-sized buildings such as business buildings, public institution buildings, and apartments have been equipped with building equipment such as an air conditioner, a boiler, and a pump for controlling the temperature, humidity, . In addition, a building automatic control system including a direct digital controller (hereinafter referred to as a " digital controller ") for controlling such building facilities is being built in the building.

The digital controller of the conventional building automatic control system does not have a keypad for directly inputting setting parameters from a building facility operator and an LCD panel for displaying the operation state of the field control device. Therefore, in order to check or control the operation state of the field control device, it is possible to check or control the operation state of the field control device through the central monitoring panel only after completion of building automatic control system. Also, there is a problem in that it is impossible to confirm whether the field control device is in normal operation during the construction of the building automatic control system.

In addition, according to the related art, there is a restriction that it is possible to check various facilities and equipment in a building only in a place where a manager computer or a digital controller is installed. In addition, when the communication with the central management apparatus is broken, There is a problem that can not be done.

In order to solve these problems, Korean Patent Registration No. 10-1204702 entitled " Automatic Building Control System Using Directly Operable Digital Controller of Web Server Client Method " , We proposed a building automatic control system using a webcam client system based on a proprietary digital controller that adds EMS (Energy Management System), schedule operation and web service function.

In the case of the above patent technology, there is an advantage that the building facility operator can receive information on the operation status of various facilities directly from the digital controller without passing through the central management device through the portable terminal. However, There was a need for security measures against the problem of leakage of information. In addition, although various sensor signals and control signals collected in medium and large buildings are accumulated, there is a problem that countermeasures against repetitive problems are not reflected in the system.

An object of the present invention is to enhance the security of an automatic building control system by allowing only authenticated portable terminals to access information generated in the automatic building control system.

It is another object of the present invention to provide a method and system for automatically controlling a building that can automatically reflect a problem that occurs repeatedly using accumulated data.

In order to achieve the above object, according to the present invention, there is provided an automatic building control method, wherein a management apparatus receives a registration request including identification information of a first control target device and identification information of the portable terminal from an arbitrary portable terminal, Receiving a list of the generated authentication terminals by using the request, receiving a sensor signal outputted from the sensor corresponding to the operation state and the operation environment of the control subject device, receiving the sensor signal and the operation Generating a control signal for controlling the operation of the control target device by using the condition and transmitting the control signal to the control target device, and controlling the operation of the control target device by using the sensor signal and the control signal Generating identification information of the first portable terminal when the first portable terminal is close to the first portable terminal Confirming a control target device corresponding to the first portable terminal in the authentication terminal list, and transmitting the confirmed operation target device information to the first portable terminal using near field wireless communication It features one to include.

According to another aspect of the present invention, there is provided a building control system for receiving a registration request including identification information of a control target device and identification information of the first portable terminal from an arbitrary first portable terminal, And a digital controller for controlling the control target device, wherein the digital controller is configured to generate the authentication terminal list to which the portable terminal identification information that can be accessed for each device is mapped and transmit the authentication terminal list to the digital controller, A first communication unit that receives a sensor signal output from a sensor in response to an operation state and an operating environment of the device to be controlled and transmits a control signal to the device to be controlled; a storage unit that stores an operation condition of the device to be controlled; A controller for controlling the operation of the control target device using the sensor signal and the operating condition, A controller for generating a control signal and generating operation information of the control target device by using the sensor signal and the control signal, a control unit for controlling the operation of the second portable terminal The portable terminal device according to claim 1, further comprising: a first portable terminal device that receives identification information of the second portable terminal, identifies the control target device corresponding to the second portable terminal in the authentication terminal list upon receiving the identification information of the second portable terminal, And an authentication communication unit for transmitting the information to the second portable terminal.

According to the present invention as described above, only authenticated portable terminals can access the information generated in the building automatic control system, thereby enhancing the security of the building automatic control system.

In addition, according to the present invention, problems accumulated in building management are automatically reflected in the system by utilizing accumulated big data, and utilization of generated data is increased, and management efficiency and integrity can be enhanced.

1 is a block diagram showing a configuration of an automatic building control system according to an embodiment of the present invention;
2 is a block diagram illustrating a digital controller configuration in more detail according to an embodiment of the present invention;
FIG. 3 is a flow chart for explaining a method for automatically controlling a building facility according to an embodiment of the present invention.
4 is a flowchart for explaining another embodiment of a method for automatically controlling building equipment according to the present invention.

The above and other objects, features, and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, which are not intended to limit the scope of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components, and all combinations described in the specification and claims can be combined in any manner. It is to be understood that, unless the context requires otherwise, references to singular forms may include more than one, and references to singular forms may also include plural forms.

1 is a block diagram showing a configuration of an automatic building control system according to an embodiment of the present invention. 1, a building automatic control system 10 according to an embodiment of the present invention includes a management device 50, a plurality of direct digital controllers (hereinafter referred to as a digital controller 100) And they can transmit and receive data using the communication network 400.

The building automatic control system 10 can perform operation control, monitoring and use history management functions of various building facilities such as an air conditioner, a freezer, a boiler, etc. installed in a building. To this end, the building automatic control system 10 controls the operation of a fan motor, a valve actuator, etc. (hereinafter, referred to as a control target device 200) installed in a building facility, and controls the operation of the temperature sensor, the humidity sensor, The sensor signals output from the various sensors 300 in response to the operation state and the operation environment of the control target device 200 can be received. Of course, an operation state signal may be inputted directly from the control subject device 200. [

Meanwhile, the building automatic control system 10 is connected to the portable terminal 500 such as a smart phone through the Internet network 450 to provide the building facility manager with SMS, voice information, and the like about the operation status of the building facility And can also control and monitor the operation of the control target device 200 in response to a control command from the mobile terminal 500.

In particular, the building automatic control system 10 according to the present invention may be configured such that the portable terminal 500 directly connects to the digital controller 100 via the Internet 450 without passing through the management device 50, And the like. Then, the digital controller 100 can provide the corresponding information to the portable terminal 500. [ Also, the building facility manager may directly connect to the digital controller 100 through the portable terminal 500 to transmit various control commands.

The communication network 400 may be implemented as a local area network (LAN) such as Ethernet and supports bi-directional communication between the management device 50 and the digital controller 100, Inter-bidirectional communication can also be supported. Bidirectional communication between the management device 50 and the digital controller 100 may be performed by protocols such as TCP / IP, BACnet / IP, Modbus RS-485, and MSTP RS-485. The communication network 400 may include communication equipment such as a router (not shown) and a bridge (not shown) to support bidirectional communication between the management device 50 and the digital controller 100, And can support the management terminal 50 and the digital controller 100 to provide various information and data to the portable terminal 500 of the administrator located at the remote location by being connected to the network 450.

The management device 50 may be a terminal and / or a server used by a building facility manager in a building facility management room, and may be connected to the digital controller 100 through a communication network 140 to exchange various information and data. Also, the management device 50 may transmit the control command and the setting value input from the manager to the digital controller 100 to monitor and control the control target device 200. [ Here, the control command may be a start / stop command for the building equipment. The set value may be the upper or lower limit value set as the starting condition of the building equipment. For example, in the case of a boiler, it may be controlled to start at a temperature set to a lower limit value of the room temperature and to stop the starting at a temperature set to an upper limit value of the room temperature. Another example of the set value is that if the upper limit value for the number of start-stop operations of the control target device 200 is set, an alarm is generated when the number of start-stop operations exceeds the upper limit value so that the control target device 200 can be monitored have.

The management device 50 also stores various information such as the operation state of the control target device 200 and measurement values (temperature, humidity, air cleanliness, etc.) reported from the digital controller 100. On the other hand, the management device 50 can display information on the operation state and the operation environment of the control subject device 200 on the screen, and notify the administrator thereof.

Furthermore, the management device 50 receives a registration request including the identification information of the control subject device and the identification information of the first portable terminal from the arbitrary first portable terminal, The authentication terminal list to which the portable terminal identification information is mapped can be generated. The management device 50 transmits the generated authentication terminal list to the digital controller 100 so that the digital controller 100 can transmit the information of the control target device only to the authenticated portable terminal. The authentication terminal list may be one in which a portable terminal capable of accessing information is registered for each of the control target apparatuses, and the management apparatus 50 may group the control target apparatus or the digital controllers and register a portable terminal accessible for each group. For example, a mobile terminal that can access only the air conditioner information and a portable terminal that can access only the boiler information may be set differently and registered in the authentication terminal list. By setting the access authority in stages or individually, security can be enhanced have. Also, the authentication terminal list may be generated differently for each digital controller, and the management device 50 may individually transmit the authentication terminal list corresponding to each digital controller.

The digital controller 100 directly controls the control target device 200 based on control commands and setting values transmitted from the management device 50 and manages information on the operation status and operation environment of the control target device 200 And report it to the device 50.

In particular, the digital controller 100 according to the present invention can directly receive control commands and setting values from the building facility manager without receiving input from the management device 50, and can independently monitor and control the control target device 200 . To this end, the digital controller 100 provides web service, operation time integration, schedule operation function, and can be implemented as stand-alone.

Next, a digital controller according to an embodiment of the present invention will be described in detail with reference to FIG. 2, the digital controller 100 according to an exemplary embodiment of the present invention includes a first communication unit 110, a storage unit 120, a controller 130, and an authentication communication unit 140, The control unit 130 may include a data learning unit 133 and a problem status control unit 135. The data output unit 113 and the general purpose input unit 115 may be connected to each other.

First, the first communication unit 110 may receive a sensor signal output from the sensor 300 in response to an operation state and an operating environment of the control target device, and may transmit a control signal to the control target device 200. The sensor signal may be received from the sensor 300, but it is also possible to directly receive the signal measured by the sensor included in the control target device 200 from the control target device 200. In addition, the first communication unit 110 may receive not only the sensor signal but also the information about the operation status and the operation status of the control target device 200 received by the control target device 200. The first communication unit 110 provides a communication interface for allowing the digital controller 100 to exchange various information and data with the central monitoring unit 110 or another digital controller 100. Specifically, the first communication unit 110 may provide RS-232, RS-485, and Ethernet communication interfaces, and may further provide various communication interfaces according to embodiments.

Meanwhile, in the conventional digital controller, a digital input (DI) and an analog input (AI) are classified by hardware, and a digital output (DO) and an analog output (AO) . Generally, DI, AI, DO, and AO are each composed of 8 points. If any one of DI, AI, DO, and AO exceeds 8 points, there is a problem that a new digital controller should be added even if there is an extra input / output point . On the other hand, the first communication unit 110 according to the present invention provides a general-purpose input and a general-purpose output function.

In more detail, the first communication unit 110 may include a general-purpose output unit 113 and a general-purpose input unit 115. [ The general purpose output unit 113 may include a current converting unit 1131, a voltage converting unit 1132, and an output selecting unit 1133.

The current conversion unit 1131 and the voltage conversion unit 1132 convert the control signals for the air conditioner supply, ventilation, opening adjustment of the exhaust damper, cooling / heating temperature valve control, inverter speed control, Converts it into a current or voltage of 0-10 V and outputs it as an analog type signal (AO signal). The controller 130 may directly output a pulse width modulation (PWM) signal as an AO signal without passing through the current converting unit 1131 and the voltage converting unit 1132 according to the embodiment.

The output selection unit 1133 selects an AO signal, a PWM (Pulse Width Modulation) signal, or a digital type signal (DO signal) through the current conversion unit 1131 and the voltage conversion unit 1132 according to the control of the control unit 130 And outputting the result through a predetermined output point. Here, the DO signal output may be a control signal for starting / stopping the air conditioner fan (FAN), starting / stopping the refrigerator, and starting / stopping the pump.

The output selection unit 1133 may be implemented by an analog multiplexer. As described above, the output point can be selected and used by software in accordance with the control of the control unit 130 without being divided into AO-only and DO-only units, so that it can be freely and universally used without restriction according to the conventional AO and DO classification , There is no need to use unnecessarily many digital controllers.

The general-purpose input unit 115 may include a signal selection unit 1156, an analog-to-digital conversion unit 1157, and an input selection unit 1158. The general purpose input unit 115 can be used to monitor the start / stop state of the fan of the air conditioner, to monitor the start / stop state of the refrigerator, the fire alarm of the air conditioner, and the alarm signal of the refrigerator / (Temperature, humidity, and temperature) measured by various sensors for monitoring the supply, the ventilation temperature, the indoor humidity, and the pressure, current, voltage and power of the control target device 200, (AI signal) of a resistance value, a current value (4-20mA), a voltage value (0-10V), and a voltage value (0-5V). The input DI signal and AI signal can be transmitted to the control unit 130 through the following operation.

First, the input selection unit 1158 analyzes the input signal to classify the analog current signal (4-20mA), the analog voltage signal (0-10V), the analog voltage signal (0-5V), and the analog resistance value signal input type have. On the other hand, the input selector 1158 can treat the DI signal as a resistance value signal.

The analog-to-digital converter 1157 converts the AI signal and the DI signal selected by the input selector 1159 into a digital signal that can be processed by the controller 130, and outputs the digital signal.

The signal selection unit 1156 performs a function of selecting and outputting an input port of the control unit 130 corresponding to the AI and DI signals digitally converted and output by the analog-to-digital conversion unit 1157.

The storage unit 120 stores various kinds of information and data necessary for the operation of the digital controller 100 and provides the information and the data according to a request of the controller 130. More specifically, the storage unit 120 may store various information and data collected from the sensor 300, and may store operating conditions of the device 200 to be controlled.

The control unit 130 controls the overall operation of the digital controller 100 and analyzes the data and information collected in real time from the control target device 200 to improve the energy use efficiency. And to generate a control command for control. To this end, the administrator may store the operation and operating conditions of the control target device 200 in the storage unit 120 for improving energy use efficiency.

The control unit 130 can be implemented to control the operation of the control target device 200 according to an algorithm or the like that can improve the energy use efficiency according to, for example, the operation state of the control target device 200, the room temperature, the humidity, .

The control unit 130 generates a control signal for controlling the operation of the control target device 200 by using the sensor signal and the operation condition and outputs the operation information of the control target device 200 using the sensor signal and the control signal Lt; / RTI > For example, the operation information of the control target device 200 may include at least one of a terminal input state, an output state, an installation method, and a history management of the control target device.

The control unit 130 may further include a data learning unit 133 and a problem status control unit 135. [

The data learning unit 133 learns the operation environment and the patterns of the operation state using the digital signal and the control signal, and sets the normal operation range according to the operation environment according to the learning result. For example, a digital signal (sensor signal) may be a resistance value, a current value, or a voltage value indicating an operation state, which is set as a single input value of a multidimensional vector, and an operating environment at the time when the sensor signal displays the corresponding value, For example, the operating conditions such as temperature, humidity, and energy usage can be set as one input value of the multidimensional vector, and then clustered to learn the correlation and pattern of the operating environment and the operating state. Further, learning by adding a control signal to one input value of the multidimensional vector, it is possible to analyze how a control signal in a specific operation environment and operation state is transmitted. As a result, it is possible to grasp a control command in a corresponding operating environment and an operating state, and a change in an operating state according to a control command, and extract a normal operating range according to the operating environment according to the learning result. The normal operation range for each operating environment according to the learning result in the data learning unit 133 can be stored in the storage unit 120. Every time a sensor signal is input and a corresponding control signal is generated, Is utilized for pattern learning in the section 133, and the learning result can be continuously updated.

The trouble situation control unit 135 can determine whether the first sensor signal belongs to the normal operation range when a new first sensor signal is inputted from the control target device. If the first sensor signal is out of the normal operation range, the trouble situation control unit 135 outputs problem condition information including the operation state included in the first sensor signal, the operating environment, and the control signal corresponding to the first sensor signal And transmit it to the management apparatus 50.

When the management apparatus 50 receives the trouble situation information, it can generate corresponding problem situation control information, which may be information manually generated by the building facility manager. For example, when the sensor signal is out of the normal operation range derived from the big data learning, the problem situation control unit 130 determines whether the sensor signal is out of the normal operation range, the operation at the corresponding sensor value based on the pre- Information on the type of the control signal generated corresponding to the previously inputted similar value, a change in the operation state that was previously performed when the control signal is input, and the like. This is a situation different from the general situation and it is highly likely that the problem has not been solved by the preset control signal, so that a new control command of the building facility manager is requested.

The building facility manager can check the problem situation information received by the management device 50 and generate the control command corresponding to the received control situation information as the problem condition control information and transmit the generated control command to the digital controller 100. In this case, The operation condition of the control target device 200 can be updated using the trouble situation control information. That is, if the problem is not solved normally by the previously set operating condition, a new control command is inserted into the operating condition or the existing operating condition is changed to reflect a solution in a new problem situation that could not be predicted at the initial setting It is possible.

The authentication communication unit 140 receives the identification information of the second portable terminal when any second portable terminal approaches using the short-range wireless communication method. When the authentication communication unit 140 receives the identification information of the second portable terminal, the authentication communication unit 140 can confirm the control target apparatus corresponding to the second portable terminal in the authentication terminal list. If there is the first operation information corresponding to the checked control subject device 200, the first operation information can be transmitted to the second portable terminal. The authentication terminal list is generated by the management apparatus 50. In order for the portable terminal to access the operation information, the authentication terminal list must be registered in the management apparatus 50 in advance. The digital controller 100 determines whether the portable terminal requesting information is close to the digital controller 100 using the authentication terminal list received from the management device 50 or not, Information can be provided only for the user. As a result, the security of the digital controller 100 is improved, and the authentication terminal list is not generated in the digital controller 100 but is generated in the separate management device 50. In the case of the management device 50, 100), it is possible to block the access of information of the external attacker more strongly.

3 to 4 are flowcharts for explaining an automatic control method of a building facility according to an embodiment of the present invention. 3, the digital controller receives a registration request including identification information of a first control target device and identification information of a mobile terminal from a portable terminal, The list can be received (S100). The digital controller receives the sensor signal output from the sensor in response to the operation state and the operation environment of the control target device (S200), and controls the operation of the control target device by using the sensor signal and the operation condition of the previously stored control target device (S300), and transmits the control signal to the control target device (S350). Next, the digital controller can generate operation information of the control target device using the sensor signal and the control signal, and can store the operation information (S400). If an arbitrary first portable terminal is close to the digital controller, identification information of the first portable terminal is received, and the control target device corresponding to the first portable terminal can be identified in the authentication terminal list (S600). If it is determined that the accessed first portable terminal is a portable terminal registered in the authentication terminal list, the digital controller can transmit operation information of the confirmed controlled device to the first portable terminal using short-range wireless communication (S700).

Referring to FIG. 4, the digital controller converts a sensor signal to a digital signal (S10), and learns a pattern of an operation environment and an operation state using a digital signal and a control signal (S20). The digital controller sets a normal operation range for each operating environment according to the learning result (S30). If a new first sensor signal is input from the control target device (S40), the digital controller can determine whether the first sensor signal belongs to the normal operating range (S50). If the first sensor signal is out of the normal operation range as a result of the determination in step 50, the controller generates problem state information including the operation state indicated by the first sensor signal, the operation environment, and the control signal corresponding to the first sensor signal S60) to the management apparatus (S70). The management apparatus generates trouble situation control information corresponding to the problem situation information and transmits it to the digital controller (S80). The digital controller can update the operation condition of the control target device using the trouble situation control information (S90)

10: Building automatic control system
50: management device
100: Digital controller
200: Control target device
300: sensor
400: communication network
500:

Claims (7)

A method for a digital controller to control one or more building installations,
Receiving the registration request including the identification information of the control subject device and the identification information of the portable terminal from the arbitrary portable terminal and receiving the authentication terminal list generated using the registration request;
Receiving a sensor signal output from a sensor corresponding to an operation state and an operating environment of the control target device;
Converting the sensor signal into a digital signal;
Generating a control signal for controlling the operation of the control target device using the digital signal and the pre-stored operating conditions of the control target device, and transmitting the control signal to the control target device;
Generating operation information of the control target device using the digital signal and the control signal;
Receiving identification information of the first portable terminal and confirming a control target device corresponding to the first portable terminal in the authentication terminal list when the first portable terminal is close to the first portable terminal;
Transmitting the operation information of the control target device to the first portable terminal using short range wireless communication;
Learning a correlation and a pattern of the operating environment and the operating state using the digital signal and the control signal;
Setting a normal operation range for each operating environment according to the learning result;
Determining whether the first sensor signal belongs to the normal operation range when a new first sensor signal is input from the control target device;
And generating and transmitting to the management apparatus trouble state information including an operation state indicated by the first sensor signal, an operation environment, and a control signal corresponding to the first sensor signal when the determination result is out of the normal operation range;
Receiving the trouble situation control information corresponding to the problem situation information from the management device and updating the operation condition of the control target device using the trouble situation control information.
Receiving a registration request including identification information of a control target device and identification information of the first portable terminal from an arbitrary first portable terminal and determining whether the portable terminal identification information capable of information- A management apparatus for generating a list of authentication terminals, and transmitting the authentication terminal list to a digital controller;
And a digital controller for controlling the controlled device,
The digital controller
A first communication unit for receiving a sensor signal output from a sensor corresponding to an operation state and an operating environment of the control target device, converting the sensor signal into a digital signal, and transmitting a control signal to the control target device;
A storage unit for storing operating conditions of the control target device;
A control unit for generating the control signal for controlling the operation of the control target device using the digital signal and the operation condition and generating operation information of the control target device using the digital signal and the control signal;
When receiving the identification information of the second portable terminal when a certain second portable terminal approaches the portable terminal using the short range wireless communication method and receiving the identification information of the second portable terminal, And an authentication communication unit for transmitting the first operation information corresponding to the checked control target device to the second portable terminal,
The control unit
A data learning unit for learning a correlation and a pattern between the operating environment and the operating state using the digital signal and the control signal and setting a normal operating range for each operating environment according to the learning result;
When the first sensor signal is input from the control target device, it is determined whether the first sensor signal belongs to the normal operation range. If the first sensor signal is out of the normal operation range, Generates problem state information including a state, an operating environment, and a control signal corresponding to the first sensor signal, and transmits the generated problem state information to the management apparatus, receives trouble state control information corresponding to the problem state information from the management apparatus, And a problem situation control unit for updating an operation condition of the control target device using the trouble situation control information.
3. The method of claim 2,
Wherein the first operation information includes at least one of a terminal input state, an output state, an installation method, and a history management of the control target device.
3. The method of claim 2,
Wherein the first communication unit includes a general-purpose output unit,
The general-
A voltage converter converting the control signal into an analog voltage signal and outputting the voltage signal;
A current converter for converting the control signal into an analog current signal and outputting the current signal;
And an output selector for outputting a digital signal generated by the controller, a voltage signal of the analog form, and a current signal of the analog form through a preset output point.
3. The method of claim 2,
Wherein the first communication unit includes a general-purpose input unit,
The universal input unit
An input selector for receiving an alarm signal input in the form of an on / off digital signal and a sensor signal input in analog form corresponding to a measurement value measured by the sensor, and analyzing the signal form;
An analog-to-digital converter for converting the alarm signal and the sensor signal into a digital signal that can be processed by the controller according to the signal type analyzed by the input selection unit;
And a signal selector for selecting an input port of the control unit corresponding to the digital signal and outputting the digital signal to the input port.
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