KR101641852B1 - Chiller System Equipped With Self-Diagnosis and Remote Control Function - Google Patents

Abstract

The present invention relates to a refrigeration system having a self-diagnosis and remote control function and a driving method thereof. More particularly, the present invention relates to a refrigeration system having a self-diagnosis and remote control function, The present invention relates to a refrigeration system and a refrigeration system.
The present invention provides a refrigeration system having a self-diagnosis and remote control function and a driving method thereof, comprising: a unit cooler fan motor sensor installed in a unit cooler that operates a blower to an evaporator coil to discharge cold air; A unit cooler defrost heater temperature sensor installed in the defrost heater inside the unit cooler; A unit cooler drain hot-wire temperature sensor installed in the heat pipe of the drain pipe in the unit cooler; A low temperature storage internal temperature sensor installed at a side of the rear portion of the unit cooler; A condenser fan motor sensor installed in a fan motor for dissipating heat by condensation; A compressor sensor installed in a compressor for transferring refrigerant at a high pressure; Condensing unit compressor internal temperature sensor associated with overheat thermocouple built into the compressor itself; A low-pressure pressure sensor installed in a low-pressure pipe inside the condensing unit; And a high pressure pressure sensor installed in a high pressure pipe inside the condensing unit. The control unit is connected to a web management server through a web browser in an environment where the internet is available, and requests information of operation reservation setting, setting change, ; The web management server receiving the request information and querying the database; Accessing the integrated management gateway server at a remote location; Performing remote control on the refrigeration system; Transmitting a control result to the integrated management gateway server; Transmitting the control result to the refrigeration system integrated management control server 310; Transmitting the control result to a user; And a step of the user inquiring the result of the control setting change through the inquiry screen of the web browser.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a refrigeration system having a self-diagnosis function and a remote control function,

The present invention relates to a refrigeration system having a self-diagnosis and remote control function and a driving method thereof, and more particularly, to a refrigeration system having a self-diagnosis and a remote control function, The present invention relates to a refrigeration system and a refrigeration system.

In general, due to the characteristics of the refrigeration system, the site manager is assigned to manage the dedicated site, but technical limitations are inherent in terms of real-time management of complicated piping and other related facilities. To overcome these limitations, a remote control system using the Internet as a management medium has been proposed. The remote control system can check the operation status of the field system and the refrigeration system at a remote place, and can use the data as a basic data for analyzing the cause of the trouble based on the data transmitted from the refrigeration system when a problem occurs to a specific module Do. This technological start-up characteristic overcomes the problems that the field manager must wait on the spot and monitors the refrigeration system in real time, so that the trouble of the refrigeration system can be prevented in advance, .

The self-diagnosis and remote control functions must be implemented in order to increase the operational efficiency of the refrigeration system, to maximize the convenience of management, to ensure stability through redundancy, and to enable real-time monitoring. Generally, a remote control management system of a refrigeration system includes a client refrigeration system operating module, a client remote control module, a client security verification module, and a client TCP / IP control module in a client unit, and is linked to an administrator server unit via the Internet as an intermediary. The administrator server unit includes an administrator remote control module, an administrator security verification module, an administrator TCP / IP control module, and an administrator freezing system management module. Based on such a configuration, the refrigeration system, which is combined with different components, is connected to the controller to collect the operation data of the refrigeration system and perform technical measures or systematic management tasks required for normal operation.

Prior art similar to the refrigeration system provided with the self-diagnosis and remote control function and the driving method thereof according to the present invention includes Korean Patent Laid-Open Publication No. 10-2011-0067824 " refrigerator remote control system and control method using this system " . Wherein the prior art is attached to each individual component of the refrigerator and is powered by itself to enable a manager and a user to transmit wired and wireless signals to enable operation control over a long distance, And a RS-232 or RS-485 serial port of the refrigerator controller for connecting the main data such as the temperature, pressure and operation information of the controller to the RS-232 or RS-485 serial port of the refrigerator controller A serial device server for receiving a control command through a wired / wireless connected management server of a wired / wireless connection to a wired / wireless communication network including an internet network, and for wired / wirelessly transmitting a control command to a controller of a corresponding refrigerator; Service Center And the main data is collected through the wired / wireless communication network and displayed on the monitor screen, and the entire data can be stored and the refrigerator can be remotely controlled. In addition, the abnormality signal generated in the refrigerator, And a management server for generating a signal informing the state of the refrigerator in accordance with the alarm signal and for performing processing in accordance with the control command of the manager generated by the manager of the remote place on the computer screen.

Another prior art is Korean Patent Registration No. 10-0742528 entitled " Remote control system of refrigerator and cooling tower device ". The prior art includes an interlocking controller for interlocking and turning on and off a cooling fan motor in accordance with an ON / OFF signal of a cooling water circulation pump, A water quality control unit for activating (turning on / off) the water quality management device in accordance with a detection signal of the water quality detector, and a water quality control unit for controlling the water quality of the makeup water according to the detection signal of the water level detector A water level control section for operating the alarm section in detection of overflow, an alarm signal inputted to the self-control section of the refrigerator, and an operation status signal outputted to the display section are interfaced and the operation of the cold water pump ON / OFF) of the refrigerator; A motor control unit for turning on / off the power according to a control signal of the device control unit; The control system of the refrigerator and the cooling tower apparatus includes an integrated control / monitoring unit for interfacing with a control signal of the device control unit to perform integrated control and monitoring, And controls the refrigerator and the cooling tower device to output a remote control and supervisory data request command signal inputted from any one of the wireless communication terminal and the remote PC to the set control value And outputting the applied control signal to the device controller to perform remote control and monitoring, and to output a response signal and remote monitoring data of the result of the remote control, and a control / monitoring A unit; And outputs the remote control data and the remote monitoring data to the control / monitoring unit. The control and monitoring unit processes the remote control and monitoring data request command signal input from the wireless communication terminal unit, And a remote control unit for processing and outputting an event signal and a remote control and supervisory data request command signal input from the radio communication terminal unit and outputting the remote control and supervisory data request command signal to the remote control unit, And a remote control communication unit configured to process signals, remote monitoring data, alarms, and event signals and output the signals to the wireless communication terminal.

Another similar prior art is Korean Patent Laid-Open Publication No. 10-2015-0110876 entitled " Remote Integrated Management System and Method for Refrigeration & Air Conditioning Equipment ". The prior art includes a protocol converter connected to a plurality of HVACs via a network; A central control device connected to the plurality of refrigeration and air conditioning facilities through the protocol converter through communication between the heterogeneous terminals; And a remote management server connected to the central control unit and connected to the central control unit, for communicating status information of the refrigeration and air conditioning facilities transmitted from the central control unit to the user terminal and transmitting an operation command input through the user terminal to the central control unit. And a user terminal displaying status information of the refrigerating and air-conditioning equipments transmitted from the remote management server through a web page, and transmitting an operation command input through a web page to a remote management server, comprising: a) Collecting and storing operation data of the HVACs through the HVAC and the network-connected protocol converter in the central control unit; b) transferring status information of the refrigeration and air-conditioning equipments collected from the central control device to the user terminal from the remote management server; c) displaying status information of the refrigerating and air-conditioning equipments transmitted from the remote management server through a web page at the user terminal; d) transmitting an operation command of the refrigeration and air conditioning equipment inputted through the web page of the user terminal to the central control device through the remote management server; And e) storing the operation command of the refrigeration / air conditioning facilities transmitted from the user terminal in the central control device and transmitting the stored operation command to the corresponding refrigeration / air conditioning installation connected to the network through the protocol converter.

However, the above-described conventional prior art technology provides an implementation technique of a refrigeration system in which data is monitored and remotely controlled by providing a unique ID according to a location where the refrigeration system is operated and responding to a request of a remote place according to the unique ID I did not.

KR10-2011-0067824 (A) KR10-0742528 (B1) KR10-2015-0110876 (A)

The present invention aims to satisfy the technical needs required from the background of the above-mentioned invention. More specifically, it is an object of the present invention to provide an implementation technique of a refrigeration system in which data is monitored and remotely controlled in such a manner that a unique ID is assigned to a location where a refrigeration system is operated and a response is made to a remote request according to the unique ID The purpose.

The technical objects to be achieved by the present invention are not limited to the above-mentioned problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description. There will be.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a refrigeration system having a self-diagnosis and remote control function and a method of driving the same, comprising: a unit cooler fan motor sensor installed in a unit cooler, A unit cooler defrost heater temperature sensor installed in the defrost heater inside the unit cooler; A unit cooler drain hot-wire temperature sensor installed in the heat pipe of the drain pipe in the unit cooler; A low temperature storage internal temperature sensor installed at a side of the rear portion of the unit cooler; A condenser fan motor sensor installed in a fan motor for dissipating heat by condensation; A compressor sensor installed in a compressor for transferring refrigerant at a high pressure; Condensing unit compressor internal temperature sensor associated with overheat thermocouple built into the compressor itself; A low-pressure pressure sensor installed in a low-pressure pipe inside the condensing unit; And a high pressure pressure sensor installed in a high pressure pipe inside the condensing unit. The control unit is connected to a web management server through a web browser in an environment where the internet is available, and requests information of operation reservation setting, setting change, ; The web management server receiving the request information and querying the database; Accessing the integrated management gateway server at a remote location; Performing remote control on the refrigeration system; Transmitting a control result to the integrated management gateway server; Transmitting the control result to the refrigeration system integrated management control server 310; Transmitting the control result to a user; And a step of the user inquiring the result of the control setting change through the inquiry screen of the web browser.

As described above, according to the present invention, the refrigeration system is provided with a self-diagnosis and remote control function, so that it is possible to maintain the maintenance of the refrigeration system without the service engineer visiting the site. In addition, the sensor is attached to the main module constituting the refrigeration system, and the measurement is performed and monitored remotely, thereby improving the durability of the refrigeration system by controlling unnecessary setting and operation of the refrigeration system in real time.

It is to be understood that the technical advantages of the present invention are not limited to the technical effects mentioned above and that other technical effects not mentioned can be clearly understood by those skilled in the art from the description of the claims There will be.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an illustration of sensors disposed in a refrigeration system according to the present invention;

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It is not. In the following description of the present embodiment, the same components are denoted by the same reference numerals and symbols, and further description thereof will be omitted.

Prior to the detailed description of each step of the invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor shall design his own invention in the best manner It should be interpreted in the meaning and concept consistent with the technical idea of the present invention based on the principle that the concept of the term can be properly defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

Referring to FIG. 1, the refrigeration system according to the present invention has a self-diagnosis function and is equipped with a sensor for real-time monitoring in a main module constituting the refrigeration system to perform remote control. Such a sensor includes a unit cooler fan motor sensor 1000 installed in a unit cooler that operates a blower to the evaporator coil to maintain a low temperature inside the refrigeration system and emits cool air; A unit cooler defrost heater temperature sensor 2000 installed between the defrost heaters in the unit cooler; A unit cooler drain heat line temperature sensor 3000 installed at a drain pipe hot line (a constant temperature line) inside the unit cooler; A storage temperature sensor (4000) installed in the wall of the rear portion of the unit cooler inside the low temperature storage; A condenser fan motor sensor 5000 installed in the fan motor of the condenser for dissipating heat generated by the condensation action; A compressor sensor (6000) installed in a compressor for transferring high pressure to the condenser in the form of saturated steam, superheated steam, and wet steam; A compressor internal temperature sensor (7000) associated with an overheat thermocouple built into the condensing unit compressor itself; A low pressure pressure sensor (8000) installed in the low pressure pipe inside the condensing unit; And a high-pressure pressure sensor (9000) installed in a high-pressure pipe inside the condensing unit.

The unit cooler fan motor sensor 1000 senses the operation ON / OFF signal output from the PLC control panel. To input the PLC operation signal, use the "A" contact of the electronic coin pager and the overload relay (OCR & EOCR) "A" contact for PLC alarm signal input. The PLC operation signal input is output from the PLC to the unit cooler fan motor sensor 1000, and when the operation signal "A" contact input is delayed or absent via the electromagnetic contactor, the electromagnetic contactor is regarded as abnormal, . The PLC alarm signal input is regarded as a fan motor overload abnormality and generates an alarm when the overload relay "A" contact is input to the unit cooler fan motor sensor 1000. The meaning of the input of the overload relay "A" contact is preferably regarded as having the same meaning as no delay time.

The unit cooler defrost heater temperature sensor 2000 is installed between the defrost heaters in the unit cooler and senses the defrost temperature during defrosting by inputting the PLC temperature value. If the temperature does not rise by the set value due to the heat of the defrost heater during the defrosting, it is regarded that there is an abnormality in the defrost heater and an alarm is generated.

The unit cooler drain heat line temperature sensor 3000 is installed in the unit cooler drain pipe hot line (constant temperature line), and detects the temperature of the drain line during operation of the refrigerator through a PLC temperature value input. This is because when the temperature is maintained by the heat generation of the hot wire during operation of the refrigerator and the temperature falls below the set value, it is regarded that there is an abnormality in the hot wire and an alarm is generated.

The storage internal temperature sensor 4000 is located at the rear side of the unit cooler inside the low temperature storage and is fixed to the low temperature storage wall and senses the internal temperature of the low temperature storage through PLC temperature value input. If the internal measured temperature value is higher or lower than the alarm set value temperature than the low temperature storage temperature set value during the operation of the refrigerator, it is regarded as an abnormality and an alarm is generated.

The condenser fan motor sensor 5000 outputs an operation ON / OFF signal in the automatic control panel. To input the PLC operation signal, use the "A" contact of the electronic coin pager and the overload relay (OCR & EOCR) "A" contact for PLC alarm signal input. The PLC operation signal input is output from the PLC to the condenser fan motor sensor 5000 and is regarded as having an abnormality in the electromagnetic contactor when the operation signal "A" contact input is delayed or absent through the electromagnetic contactor, . The PLC alarm signal input is regarded as an overload of the condenser fan motor sensor 5000 when the overload relay "A" contact is input to the condenser fan motor sensor 5000, and an alarm is generated. The meaning of the input of the overload relay "A" contact is preferably regarded as having the same meaning as no delay time.

The compressor sensor 6000 outputs an operation On / Off signal in the automatic control panel. To input the PLC operation signal, use the "A" contact of the electronic coin pager and the overload relay (OCR & EOCR) "A" contact for PLC alarm signal input. The PLC operation signal input is output from the PLC to the compressor sensor 6000, and when the operation signal "A" contact input is delayed or absent via the electromagnetic contactor, the controller assumes that the electromagnetic contactor is abnormal and generates an alarm. Further, after the compressor sensor 6000 is outputted from the PLC, the operation time of the compressor sensor 6000 is accumulated when there is an operation signal "A" contact input and an input signal through the electromagnetic contactor. And notifies the overhaul and the oil change timing of the compressor sensor 6000 when the accumulation time of the compressor sensor 6000 is reached. The PLC alarm signal input is regarded as an overload of the compressor sensor 6000 when the overload relay "A" contact is input to the compressor sensor 6000, and an alarm is generated. The meaning of the input of the overload relay "A" contact is preferably regarded as having the same meaning as no delay time.

The compressor internal temperature sensor 7000 includes an overheat preventing thermocouple built in the condensing unit compressor itself and uses the overheat preventing thermocouple "A" contact to the compressor internal temperature sensor 7000 for PLC alarm signal input. When the compressor is overheated and the compressor internal temperature sensor 7000 is also overheated, it is regarded as an overload of the compressor and the internal temperature sensor 7000 when the contact of the overheat-preventing thermocouple signal "A" is inputted. The meaning of the contact input of the overheat-preventing thermocouple signal "A " is preferably regarded as having the same meaning as no delay time.

The low pressure pressure sensor 8000 is installed in a low pressure pipe inside the condensing unit. PLC pressure value input is to measure low pressure value of condensing unit and it detects refrigerant quantity during compressor operation and generates low pressure abnormality alarm when refrigerant shortage and refrigerant leakage.

The high-pressure pressure sensor 9000 is installed in a high-pressure pipe inside the condensing unit. The PLC pressure value input is the high pressure pressure value of the condensing unit. When the high pressure rises abnormally during compressor operation, the high pressure alarm is generated.

The unit cooler fan motor sensor 1000, the unit cooler defrost heater temperature sensor 2000, the unit cooler drain hot air temperature sensor 3000, the storage internal temperature sensor 4000, the condenser fan motor sensor 5000), a system for monitoring and remotely controlling data acquired from the compressor sensor (6000), the compressor internal temperature sensor (7000), the low pressure pressure sensor (8000) and the high pressure pressure sensor (9000) A refrigeration system controller 10A for collecting data measured by a plurality of sensors and a serial device server 20A for converting a communication protocol of the refrigeration system controller 10A.

The communication type used for the monitoring and remote control of the refrigeration system controller 10A is an RS-485 configuration and the conversion of the RS-485 communication protocol to an Ethernet TCP / IP is performed in the serial device server 20A. In order to gain access to the remote refrigeration system, the user must have access to the site's internal network in the external Internet network. This authorization should be provided after the approval of the network administrator in the field where the refrigeration system is located, so that the mapping between the internal private IP address and the public IP address must be provided within the permitted range, so that the network configuration of the Internet remote control can be smoothly performed. Such a configuration is connected to the serial device server 20A through an internal IP setting on the field so that data monitoring and remote control can be performed through Ethernet communication and the same function as that used internally can be implemented It is possible. When the private IP address and the public IP address are mapped to the serial device server 20A, the IP address assigned to the serial device server 20A is assigned and the procedure is completed. Use the initial default IP address to access the menu, enter the assigned IP address, and set the accompanying serial parameters. The serial parameter preferably includes a communication speed, a data bit, a stop bit, a parity bit, and the like. The remote management server sets an Ethernet connection through a public IP and a virtual COM port provided for performing Ethernet communication with the serial device server 20A. This configuration allows the management server to access the on-site serial device server.

When the serial device server 20A installed on the network is normally searched, a synchronization operation is performed between the COM port of the serial device server 20A and the COM port of the PC. To complete the COM mapping, The port is enabled. The most important network setting and preparation process is completed in the data monitoring and remote control at the remote place through the above-described network setting process.

The refrigeration system is provided with a unique ID according to a location where the refrigeration system is operated, and each refrigeration system having the unique ID is responsive to a request of a remote place according to the unique ID, and data monitoring and remote control are performed. The data collected in this process is stored and managed in the form of timeslots, daily reports, monthly reports, and is capable of confirming the tendency of the refrigeration system operation in real time. It is also possible to transmit all the series of field situations in which the problem is solved or solved and the situation is released to the field manager in the form of a text message, an e-mail and a notification window on the application.

The main data monitoring and remote control flow is as follows. The monitoring screen of the data constitutes the initial screen, but stores and displays it in the designated storage method continuously in the background. If the refrigeration system to be inspected is selected through this process, the operation status of the refrigeration system can be confirmed by a graph screen and a report form. In addition, by comparing the controller's default control value and output value with monitoring data, the freezer that is predicted to have an abnormality generates an alarm warning or an alarm, so that it can be processed in real time using a text message, e-mail, Thereby conveying the state of the refrigeration system. And can remotely solve the problem if remote control is required. The remote data monitoring is based on periodic data storage through continuous communication and this continuous data communication can confirm whether the data of the remote control and the central control room are transmitted or received according to the defined tag list when the above network setting is correct do. The data to be transmitted and received is confirmed in the form of a text and is displayed in the form of a protocol defined by the controller. The data of the received refrigeration system is the data before processing, and the display screen is configured so that it can be easily confirmed by an administrator or a service engineer. Graph screen; Cycle screen; Alarm screen; And a report screen. The detailed items displayed on the status screen include status input; Remote control; Output state. The state input converts and outputs data of temperature, pressure, operation time, and operation mode. The remote control is a cooling set temperature, a current limit, a forced operation, and a restart delay time, and can control and manage the main control factor at a remote place. The output state can be monitored by monitoring an operation state of an electrical component such as an oil heater, an oil pump, a compressor motor, and the like to check whether an output operation is normally performed according to the state input condition. If the refrigeration system is operated in the remote data monitoring operation, the alarm and its history can be checked, and the alarm status can be checked in advance. So that the alarm can be easily checked.

Referring to FIG. 2, there is shown a refrigeration system having a self-diagnosis function and a remote control function according to an embodiment of the present invention. A refrigeration system integrated management gateway server 200 for connecting and managing the refrigeration system 100 via a network; And an integrated management control system 300 located in a computer room of a manufacturer and a manufacturer responsible for A / S. The refrigeration system 100 may be installed solely in agricultural products and fisheries products, warehouses, factories, buildings, houses, apartments, hotels, shopping malls, etc.,

The integrated management gateway server (200) for the refrigeration system (100) having a single or a plurality of units includes an internal network unit (210); A central control processing unit 220; And an external network unit 230. The internal network unit 210 includes an internal network TCP / IP 211a; RS-485 (211b); A PLC 211c; And an RF 211d, and an automatic recognition unit 212. The network connection unit 211 includes a network interface 211, The central control processing unit 220 includes a data storage unit 221; A CPU 222; And a power supply unit 223. The external network unit 230 includes a TCP / IP 231 for an external network and a CDMA 232.

The network connection unit 211 is connected to the refrigeration system 100 through a physical communication line. The TCP / IP 211a for the internal network is a basic communication protocol of the Internet network and can be used for a private network such as an intranet or an extranet. Do. The TCP / IP 211a for the internal network includes a remote customer 400 and a manufacturer 410 of the refrigeration system 100; And a management company 420 responsible for A / S of the refrigeration system 100. The remote monitoring and control requests of the refrigeration system 100 are periodically or irregularly received from the CPU 222, Requesting the refrigeration system 100 and receiving the execution result and transmitting the result to the CPU 222. [

The RS-485 (211b) can perform transmission / reception simultaneously by using a communication method of serial communication using two differential input / output lines, and can connect a plurality of the refrigeration systems (100) Long distance communication is possible. Receives the command from the CPU 222, transmits the command to the controller of the refrigeration system 100, receives the result data from the controller of the refrigeration system 100, receives the command from the CPU 222, (222).

The PLC 211c uses a power line in a place where the refrigeration system 100 is installed by transmitting a signal to a low-voltage power line of 100 to 220V in a communication system using a power line, Is physically connected to the controller of the refrigeration system (100), receives the command from the CPU (222), and transmits the command to the refrigeration system (100). That is, it is a wired input / output communication section for receiving execution data.

The RF 211d performs bidirectional communication with a wireless communication device of the controller of the refrigeration system 100 in a manner of wirelessly communicating using a high frequency band of a frequency band of a signal and installs an existing communication line, And complexity, and can also be used as a backup communication line in the emergency situation of wired line communication.

The automatic recognition unit 212 automatically recognizes the refrigeration system 100 connected to the network connection unit 211. When the refrigeration system 100 is first connected to the refrigeration system 100 via a wireless communication line, The device unit 212 searches the refrigeration system list stored in the data storage unit 221 through the CPU 222 and transmits the recognition test signal to the connected refrigeration system with matching information. The integrated management gateway server 200 receives the type of refrigeration system, the identification number, and the product number from the external network unit 230 and registers it in the network list of the data storage unit 221 through the CPU 222 And transmits its own identification number, which can be classified in the internal network, to the refrigeration system through the network connection unit 211.

Under the control of the CPU 222, the data storage unit 221 stores various cumulative data on the operation, management, and status according to the automatic recognition basic information, the internal network list, and the connection refrigeration system, and a command table related to the remote control , And the refrigeration system data is stored by receiving from the CPU 222 a periodic or storage request.

The CPU 222 requests and receives the operation data, management data, output terminal accumulation data of the time-based sensor, alarm notification accumulation data, and the like for the refrigeration system 100 recognized from the internal network unit 210, It monitors the system comprehensively. Periodically or non-periodically collected refrigeration system information is transmitted to the refrigeration system integrated management control server 310 and the periodic or non-periodic refrigeration system information requested by the customer 400, the manufacturer 410, And receives the remote control execution result from the refrigeration system 100. The refrigeration system 100 receives the remote control execution result from the refrigeration system 100 by receiving the periodic remote control command, The alarm notification data is received through the physical connection of the network connection unit 211 and is immediately transmitted to the external network unit 230 through the processing and calculation of the CPU 222 and is transmitted to the refrigeration system integrated management control server 310 And transmits the data. The CPU 222 comprehensively manages the internal and external network units in the refrigeration system integrated management gateway server 200 and manages its own abnormality. The power supply unit 223 supplies power to the internal network unit 210, the external network unit 230, the data storage unit 221, and the CPU 222. The external network unit 230 is responsible for transmitting operation and management data of the refrigeration system 100 received from the central control processing unit 220 to an Internet-based external network. The external network unit 230 includes a TCP / IP 231 ) And a CDMA (232).

First, the CDMA 232 spreads a signal to a wide frequency band to transmit a signal, and then transmits the signal by spreading the signal widely in a receiver. The CDMA 232 wirelessly receives a signal, Can be safely transmitted. Monitoring and command requests requested by the customer 400, the manufacturer 410 and the management company 420 are received from the refrigeration system integrated management control server 310 using the above-described method, 222, and transmits the processed result to the refrigeration system integrated management control server 310 or receives an alarm notification generated in the refrigeration system 100 from the CPU 222 To the smart device (500) of the customer (400), the manufacturer (410) and the management company (420) using the refrigeration system. The TCP / IP 231 for the external network is a basic communication protocol of the Internet network such as the TCP / IP 2221 for the internal network. Here, the TCP / IP 231 serves as a communication link to the external network 230. The TCP / IP 231 for the external network also receives commands and information of the refrigeration system 100 requesting remote control and remote monitoring from the refrigeration system integrated management and control server 310 via the Internet, And receives the remote control and remote monitoring result from the CPU 222 and transmits the result to the refrigeration system integrated management control server 310. [ The TCP / IP 231 for external network receives an alarm notification generated in the refrigeration system 100 from the CPU 222 and transmits the alarm notification to the refrigeration system integrated management and control server 310, Various values and data may be received for the purpose of changing the setting.

The integrated management control system 300 includes a refrigeration system integrated management control server 310, a database 320, and a web management server 330. The integrated management control server 310 is connected to the external network unit 230 of the integrated management gateway server 200 having the refrigeration system 100 installed in a remote place as an internal network, Setting data, product information, and the like regarding the CPU 222 and the refrigeration system 100 of the refrigerator 100 via the Internet. First, the refrigeration system integrated management control server 310 requests the integrated management gateway server 200 for monitoring data on operation and management of a desired refrigeration system and transmits the monitoring data to the external network unit 230 of the integrated management gateway server 200, And stored in the database 320 for each category such as a refrigeration system, a user, a time, a sensor, and a history data item. This storage function is used as basic management data for integrated management of individual refrigeration systems.

Also, the server 400 receives the remote control function requested by the customer 400 at the remote site, searches the user entry of the database 320 for the integrated management gateway server 200 to which the refrigeration system 100 belongs, The result of the execution is received through the external network unit 230 and transmitted to the smart device 500 of the customer 400 or displayed on the web browser screen of the customer accessing the web management server 330, 320). Along with this, an alarm notification generated in the refrigeration system 100 is received from the external network unit 230 and the user list of the database 320 is retrieved, and the contents of the alarm are automatically transmitted to the customer 400, 410 to the smart device 500 of the management company 420 and transmits the alarm message to the refrigeration system alarm notification client program on the PC via the Internet to notify the alarm notification.

The database 320 receives and stores the operation, management, status, safety, sensor notification, alarm notification data, and cumulative data for each item received by the refrigeration system integrated management and control server 310 The integrated management gateway server 200, the customer 400, the manufacturer 400, and the server 400 for the organic connection between the refrigeration system integrated management control server 310 and the web management server 330. [ 410 and the management company 420 in accordance with the refrigeration system 100.

The web management server 330 searches for and inquires about the refrigeration system 100 at a desired time at any place where the customer 400, the manufacturer 410, and the management company 420 have the Internet. It provides remote control and remote monitoring function. The web management server 330 connected with the database 320 displays a list of information desired by the customer 400, the manufacturer 410 and the management company 420 on a web browser, You can see the driving situation, fuel usage, the output level for each sensor, and management status.

In addition, remote control functions such as reservation setting and operation setting can manage the operation status of the remote refrigeration system by inputting numerical value to the html screen of the web browser or clicking a button. The data related to the operation and management of various refrigeration systems stored in the database 320 can be output in the form of a document such as a daily report, a week report, and a monthly report, so that the customer 400, the manufacturer 410, 420) to provide various information and analyze it. Such a function may be realized by requesting the database 320 from the web management server 330 through the user input and receiving the information stored in the database 320 or by receiving the integration result through the refrigeration system integrated management control server 310 To the management gateway server 200 to fetch the data of the refrigeration system located at a remote location.

FIG. 3 shows a data flow of a process of connecting to the refrigeration system 100 at a remote location to perform remote control. The user connects to the web management server 330 through a web browser in an Internet-enabled environment, 100, the operation schedule setting, the setting change, the operation, the stop, and the like (S110). The web management server 330 receives the request information and accesses the database 320 through the integrated management gateway server 200 at step S120 through S120, (S140), and transmits the control result to the integrated management gateway server 200 (S150). The control result is also transmitted to the refrigeration system integrated management server 310 (S160) S170). The user can inquire the result of the control setting change through the inquiry screen of the web browser (S180).

4 illustrates a data flow requesting operation and management data of the refrigeration system 100. When a user requests information from the refrigeration system integrated management and control server 310 through a web browser at step S210, The database 320 inquires the information in the database 320 and the database 320 searches the table according to the inquiry condition at step S230 to inquire the user for a request, (S240) and responds to the user information request (S250). Otherwise, the database 320 requests the integrated management gateway server 200 to inquire the refrigeration system 100 data (S260), accesses the refrigeration system 100 (S270) State, and history data through the microcomputer of the refrigeration system 200 (S280) and transmits the data to the refrigeration system integrated management and control server 310 (S290). The transmitted information is stored in the table of the user of the database 320 and the table of the refrigeration system in operation S300 and transmitted to the user's personal computer and workstation in operation S310. So that the result can be searched and inquired (S320).

5 shows a flow of a process of detecting unexpected abnormal operation or propagating an urgent situation such as an alarm to the refrigeration system 100 located at a remote place. When a sensor error occurs, the refrigeration system 100 controller The microcomputer reads the sensor data and confirms whether or not an alarm has occurred and immediately transmits the alarm data to the integrated management gateway server 200 at step S410. The integrated management gateway server 200 processes the data of the refrigeration system 100 stored in the data storage unit 221 and transmits the data to the refrigeration system integrated management and control server 310 of the head office in real time At the same time, the management server 420 transmits a text message, an e-mail, and a notification window transmission service on the application to the smart device 500 through the CDMA 232 communication module in operation S450. Then, the alarm data is transmitted to the message-only client program of the personal computer of the user and the manager (S440), and the alarm occurrence time, product number, alarm message, position, A / S administrator's telephone number and the like through the TCP / IP (S460), and can take related measures (S470).

6 is a flowchart showing an operation flow of automatically recognizing the refrigeration system 100 when the refrigeration system 100 is physically connected in the automatic recognition unit 212 and delivering the first refrigeration system information to the microcomputer . The integrated management gateway server 200 starts in a standby state in real time for the connection of the refrigeration system 100 (S500). When the refrigeration system 100 is physically connected (S510), it requests automatic recognition (S520) and retrieves the information stored in the data storage unit 221. When the refrigeration system is recognized, a recognition test signal is transmitted And receives the refrigeration system information for the initial connection and confirms whether the device is recognized (S570). The refrigeration system recognition result data is stored in the data storage unit 221 (S580) and maintained in connection with the refrigeration system (S590). If information is missing from the refrigeration system recognition list, the refrigeration system recognition list is requested to be supplemented (S540), and the failure result and the cause are stored (S600).

7 is a diagram illustrating a relationship between the customer 400, the manufacturer 410, and the management company 330 on the communication between the integrated management gateway server 200, the refrigeration system integrated management control server 310, 420 are data required for remote control and real-time monitoring of the refrigeration system 100. The refrigeration system information data 1 including the production date, the product number, and the unique identification number of the refrigeration system 100 and the customer 400 are connected to the web server through the web browser on the refrigeration system 100 at the remote place Remote control data (2) for operating data about the running, stopping and reservation settings of the refrigeration system (100) and the refrigeration system (100) for real time monitoring of the refrigeration system (100) Real-time refrigeration system status data (4) indicating the pressure, temperature, operation time, load output state, operation state, etc. varying in real time when the sensor data (3) of the main module and the refrigeration system (100) Operation / management accumulation including the operation time of each refrigeration system stored in the gateway server 200, hourly, daily, weekly, and monthly operation times, operation efficiency, alarm notification occurrence count, And a data 5 and the alarm notification data (6) for transmission to determine whether or not the above configuration device when an error occurs in the refrigeration system 100.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, will be. Accordingly, the true scope of the present invention should be determined only by the appended claims.

Claims (20)

In a refrigeration system equipped with a self-diagnosis function,
A unit cooler fan motor sensor 1000 installed in a unit cooler that operates a blower to an evaporator coil to emit cool air;
A unit cooler defrost heater temperature sensor 2000 installed in the defrost heater inside the unit cooler;
A unit cooler drain hot-wire temperature sensor 3000 installed in the heat pipe of the drain pipe in the unit cooler;
A low temperature storage internal temperature sensor 4000 installed at one side of the rear side of the unit cooler;
A condenser fan motor sensor 5000 installed in a condenser fan motor for dissipating heat due to condensation action;
A compressor sensor (6000) installed in a compressor for conveying refrigerant at a high pressure;
A compressor internal temperature sensor (7000) associated with an overheat thermocouple built into the condensing unit compressor itself;
A low pressure pressure sensor (8000) installed in the low pressure pipe inside the condensing unit;
And a high-pressure pressure sensor (9000) installed in a high-pressure pipe inside the condensing unit. The method according to claim 1,
The unit cooler fan motor sensor 1000 senses the operation ON / OFF signal output from the PLC, uses the electromagnetic contactor "A" contact for inputting the PLC operation signal, and uses the overload relay "A Quot; contact is used. 3. The method of claim 2,
When the input of the operation signal "A" through the electromagnetic contactor is delayed or absent after outputting the unit cooler fan motor sensor 1000 from the PLC, the PLC operation signal input is regarded as an abnormality in the electromagnetic contactor, And the PLC alarm signal input is regarded as a fan motor overload abnormality when an overload relay "A" contact is input to the unit cooler fan motor sensor 1000, and an alarm is generated. The method according to claim 1,
The unit cooler defrost heater temperature sensor 2000 senses the defrost temperature during the defrosting by inputting the PLC temperature value. If the temperature does not rise to the preset value due to the heat of the defrost heater, And generates an alarm. The method according to claim 1,
The unit cooler drain hot-wire temperature sensor 3000 senses the hot-wire temperature during operation of the refrigerator through the input of the PLC temperature value. When the temperature is maintained by the hot- And an alarm is generated by considering that there is an abnormality in the drain hot line. The method according to claim 1,
The storage internal temperature sensor 4000 senses the internal temperature of the low temperature storage through the input of the PLC temperature value, and when the internal measured temperature value is higher or lower than the alarm set value temperature during the operation of the refrigeration system And an alarm is generated. The method according to claim 1,
The condenser fan motor sensor 5000 outputs an operation ON / OFF signal from the PLC and uses the contactor "A" contact for inputting the PLC operation signal and the contact "A" for the overload relay for inputting the PLC alarm signal And the refrigeration system. 8. The method of claim 7,
The PLC operation signal input is output from the PLC to the condenser fan motor sensor 5000, and when there is a delay or an input of the operation signal "A" contact through the electromagnetic contactor, it is regarded that there is an abnormality in the electromagnetic contactor, And the PLC alarm signal input is regarded as an overload of the condenser fan motor sensor 5000 when an overload relay "A" contact is input to the condenser fan motor sensor 5000, and an alarm is generated. The method according to claim 1,
The compressor sensor 6000 outputs an operation on / off signal from the PLC, uses the contactor "A" contact for inputting the PLC operation signal, uses the contact "A" for the overload relay for inputting the PLC alarm signal, The input of the PLC operation signal is generated by outputting the compressor sensor 6000 from the PLC and then, when there is a delay or an input of the operation signal "A" contact through the electromagnetic contactor, it is regarded that there is an abnormality in the electromagnetic contactor and an alarm is generated . 10. The method of claim 9,
The compressor sensor 6000 is output from the PLC, and the operation time of the compressor sensor 6000 is accumulated when there is an operation signal "A" contact input and an input signal via the electromagnetic contactor, And notifies the overhaul and the oil change setting value when the compressor sensor (6000) integration time is reached. The method according to claim 1,
The compressor internal temperature sensor 7000 includes an overheat preventing thermocouple built in the condensing unit compressor itself to use the overheat preventing thermocouple "A" contact in the compressor internal temperature sensor 7000 for inputting a PLC alarm signal, When the compressor internal temperature sensor 7000 is overheated and the compressor internal temperature sensor 7000 is overheated when the overheat thermocouple signal "A" contact point is input, the alarm is generated Refrigeration system. The method according to claim 1,
Wherein the PLC pressure value input from the low pressure pressure sensor (8000) measures the low pressure value of the condensing unit to detect the amount of refrigerant during operation of the compressor, thereby generating a low pressure abnormality alarm upon refrigerant shortage and refrigerant leakage. The method according to claim 1,
Wherein the PLC pressure value input from the high pressure pressure sensor (9000) measures a high pressure pressure value of the condensing unit to generate a high pressure alarm when the high pressure rises abnormally during operation of the compressor. The method according to claim 1,
The unit cooler fan motor sensor 1000, the unit cooler defrost heater temperature sensor 2000, the unit cooler drain hot air temperature sensor 3000, the storage internal temperature sensor 4000, the condenser fan motor sensor 5000), a system for monitoring and remotely controlling data acquired from the compressor sensor (6000), the compressor internal temperature sensor (7000), the low pressure pressure sensor (8000) and the high pressure pressure sensor (9000) And a serial device server (20A) for converting a communication protocol of the refrigeration system controller (10) to the refrigeration system controller (10A). delete delete delete delete delete delete

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