KR102003771B1 - Remote supervisory control system and operation thereof - Google Patents

Abstract

The present invention relates to a remote monitoring control system and an operation method for the remote monitoring control system. According to an embodiment of the present disclosure, an operation method for a remote monitoring control system comprises the steps of: transmitting, by a first terminal, a first unlocking code and a first terminal identification information to a locking device, and transmitting, by a second terminal, a second unlocking code and a second terminal identification information to the locking device; transmitting, by the locking device, the received first unlocking code, first terminal identification information, second unlocking code and second terminal identification information to a server; transmitting, by the server, a confirmation flag to the locking device based on the received first unlocking code, first terminal identification information, second unlocking code, and second terminal identification information; and unlocking, by the locking device, a door of a workplace based on the confirmation flag.

Description

TECHNICAL FIELD [0001] The present invention relates to a remote surveillance system and a remote surveillance system,

The present invention relates to the operation of a remote monitoring control system and a remote monitoring and control system.

The remote monitoring and control system collects data from one of the sensors and sensors installed in a remote place and transmits the data to a server installed in a remote monitoring room through a wired or wireless communication network, It is a system that monitors and controls on-line. In general, a remote surveillance control system is called Supervisory Control And Data Acquisition System (SCADA). Such a remote monitoring and control system not only efficiently operates the power system by monitoring and controlling the power facilities in one place, but also is applied to the plant management, the lighting management, the water treatment management, the gas management or the disaster prevention management.

Remote monitoring and control system supports seamless IED (Intelligent Electronic Device) function by supporting smooth communication with digital relays, supports various operating environments of Unix or Windows 2000 / XP, and long-term data storage using relational DB It is possible. In addition, it can output various types of reports to meet user's needs, support Operator Training System (OTS) function, and support Web surveillance function.

In addition, there is a growing interest in personnel safety and workplace real-time management for workshops for plant management, lighting management, water treatment management or gas management, and the latest information and communication technology (ICT) and Internet (IoT) There is an increasing trend of continuous efforts to apply the technology that has been integrated with the technology.

A remote remote monitoring control system for water, wastewater, and wastewater treatment facilities according to an embodiment of the present disclosure includes a server and a first terminal, a second terminal, and a locking device.

A method for operating a remote remote monitoring and control system according to an embodiment of the present disclosure includes receiving a first user identification information from a first user and receiving second user identification information from a second user Wherein the first terminal transmits first user identification information and first terminal identification information to the server and the second terminal transmits second user identification information and second terminal identification information to the server, Associating the first user identification information with the first terminal identification information and the second user identification information with the second terminal identification information; placing the first terminal within a range of 0 cm to 10 cm from the protection gear of the first user; Message is output from the first terminal, and a message that the second terminal should be positioned within 0 cm to 10 cm from the protective gear of the second user is output by the second terminal , The first terminal acquires the first position change information of the first terminal, the second terminal obtains the second position change information of the second terminal, the first terminal acquires the second position change information of the passive Communicating with the tag to obtain first protective equipment identification information and the second terminal communicating with a passive tag embedded in the protective equipment of the second user to obtain second protective equipment identification information, 1 the first terminal generates first safety information based on the protection equipment identification information and the second terminal generates second safety information based on the second position change information and the second protection equipment identification information; Wherein the terminal is in short-range communication with the second terminal to obtain the second terminal identification information, the second terminal performs short-range communication with the first terminal to obtain the first terminal identification information, 1 safety information, first terminal identification information, and identification information of the second terminal to the server, the second terminal transmitting the second safety information, the first terminal identification information, and the second terminal identification information to the server, The server transmits the first unlocking code to the first terminal and the second unlocking code to the second terminal based on the first safety information, the second safety information, the first terminal identification information, Storing the first unlocking code and the second unlocking code in a database, the first terminal transmitting the first unlocking code and the first terminal identification information to the locking device, and the second terminal transmitting the second unlocking code and the second unlocking code to the second terminal, Transmitting the unlock code and the second terminal identification information to the lock device; transmitting the first unlock code, the first terminal identification information, the second unlock code, , The server transmitting the confirmation flag to the locking device based on the received first unlocking code, the first terminal identification information, the second unlocking code, and the second terminal identification information, Wherein the first terminal and the second terminal communicate wirelessly below 25 m, the first terminal and the second terminal communicate wirelessly with the server, and the first terminal and the second terminal communicate wirelessly with the server, The terminal and the second terminal communicate wirelessly with the locking device at 10 cm or less.

A method of operating a remote remote monitoring and control system according to an embodiment of the present disclosure includes periodically checking whether a first terminal is connected to a second terminal or not when the second terminal is not connected, The first terminal acquiring at least one of the heart rate information and the body temperature information of the first user, at least one of the heart rate information and the body temperature information falls below a first threshold value or the second threshold value When at least one of the heart rate information and the body temperature information falls below a first threshold value or becomes higher than a second threshold value, the first terminal transmits an emergency signal to the second terminal and the server, 1, the terminal outputs an alarm.

A method of operating a remote farwatch monitoring control system according to an embodiment of the present disclosure includes the steps of a first terminal deleting a first unlocking code when a first terminal receives a work completion signal from a first user, When the second terminal receives the operation completion signal from the second user, the second terminal deletes the second unlocking code.

The step of unlocking the door of the workplace of the method of operation of the remote farwatch monitoring control system according to an embodiment of the present disclosure includes the step of the server controlling the LED formed on the floor of the workplace to display a safe path to the user's work .

When at least one of the heart rate information and the body temperature information falls below a first threshold value or becomes higher than a second threshold value, the method of operation of the remote farwatch monitoring control system according to an embodiment of the present disclosure, And transmitting at least one of images, heart rate information and body temperature information taken by a camera included in the first terminal and the server to the second terminal and the server.

In addition, the program for implementing the method of operating the remote monitoring system as described above may be recorded in a computer-readable recording medium.

1 is a diagram of a server according to an embodiment of the present disclosure;
Figure 2 is a flow diagram illustrating the operation of a remote surveillance system in accordance with one embodiment of the present disclosure.
3 is a flow chart illustrating the operation of a remote surveillance system in accordance with one embodiment of the present disclosure.
4 is a flow chart illustrating the operation of a remote surveillance system in accordance with an embodiment of the present disclosure;
5 is a flow diagram illustrating the operation of a remote surveillance system in accordance with one embodiment of the present disclosure.
6 is a flowchart illustrating an operation of a terminal of a remote monitoring system according to an embodiment of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the disclosed embodiments, and how to accomplish them, will become apparent with reference to the embodiments described below with reference to the accompanying drawings. It should be understood, however, that the present disclosure is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, It is only provided to give the complete scope of the invention to the person.

The terms used in this specification will be briefly described, and the disclosed embodiments will be described in detail.

As used herein, terms used in the present specification are taken to be those of ordinary skill in the art and are not intended to limit the scope of the present invention. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Accordingly, the terms used in this disclosure should be defined based on the meaning of the term rather than on the name of the term, and throughout the present disclosure.

The singular expressions herein include plural referents unless the context clearly dictates otherwise. Also, plural expressions include singular expressions unless the context clearly dictates otherwise.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, without departing from the spirit or scope of the present invention.

In addition, the term "part" used in the specification means software or hardware component, and "part " However, "part" is not meant to be limited to software or hardware. "Part" may be configured to reside on an addressable storage medium and may be configured to play back one or more processors. Thus, by way of example, and not limitation, "part (s) " refers to components such as software components, object oriented software components, class components and task components, and processes, Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays and variables. The functions provided in the components and "parts " may be combined into a smaller number of components and" parts " or further separated into additional components and "parts ".

In accordance with one embodiment of the present disclosure, "part" may be embodied in a processor and memory. The term "processor" should be broadly interpreted to include a general purpose processor, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a controller, a microcontroller, In some circumstances, a "processor" may refer to an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA) The term "processor" refers to a combination of processing devices, such as, for example, a combination of a DSP and a microprocessor, a combination of a plurality of microprocessors, a combination of one or more microprocessors in conjunction with a DSP core, It can also be called.

The term "memory" should be broadly interpreted to include any electronic component capable of storing electronic information. The terminology memory may be any suitable memory such as random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), programmable read-only memory (PROM), erase- May refer to various types of processor-readable media such as erasable programmable read-only memory (PROM), flash memory, magnetic or optical data storage devices, registers, and the like. The memory is said to be in electronic communication with the processor if the processor is able to read information from and / or write information to the memory. The memory integrated in the processor is in electronic communication with the processor.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. In order to clearly explain the present disclosure in the drawings, portions not related to the description will be omitted.

1 is a diagram of a server according to an embodiment of the present disclosure;

The server 100 may include an input unit 110, a processing unit 120, and an output unit 130. 1 illustrates only the server 100, the first terminal, the second terminal, and the locking device may also include an input unit 110, a processing unit 120, and an output unit 130.

The input unit 110 may receive an input from a user. For example, the input unit 110 may include a device capable of receiving input from a user, such as a touch screen, a keyboard, a mouse, a trackball, and an electronic pen. The user can input various settings for remote monitoring to the server 100 through the input unit 110. [

The input unit 110 of the server 100 can receive data from another device. For example, the input unit 110 may receive information from a first terminal, a second terminal, or a locking device. The input unit 110 may receive data using the same protocol as the first terminal, the second terminal, or the locking device.

The server 100 may include a processing unit 120. The processing unit 120 may include a processor and a memory. The processor of the processing unit 120 may operate based on instructions stored in the memory.

The server 100 may include an output unit 130. The output unit 130 may output the output signal of the processing unit 120 as a sound or an image. The output unit 130 may include a display unit or a speaker. The output 130 may also send a signal to the first terminal, the second terminal, and the lock. The output unit 130 may transmit data using the same protocol as the first terminal, the second terminal, and the lock device.

The server 100 including the input unit 110, the processing unit 120 and the output unit 130 and the server 100 will explain the operations of the first terminal, the second terminal and the locking device.

Figure 2 is a flow diagram illustrating the operation of a remote surveillance system in accordance with one embodiment of the present disclosure.

The remote monitoring system may include a server 230, a first terminal 210, and a second terminal 220. The remote monitoring system may be associated with water, sewage and wastewater treatment plants, plant management facilities, lighting management facilities, gas management facilities or disaster management facilities.

The first terminal 210 or the second terminal 220 may be a smart phone or a smart watch. However, the present invention is not limited thereto. The first terminal 210 or the second terminal 220 may be embedded in a protective glove. For example, the first terminal 210 or the second terminal 220 may be a protective glove including a processor, a memory, and a wireless communication unit. The first terminal 210 and the second terminal 220 may also include a display.

The first terminal 210 may perform step 211 of receiving first user identification information from a first user. Also, the second terminal 220 may perform step 221 of receiving second user identification information from the second user. The first user identification information and the second user identification information may be unique identification information for each user. For example, the first user identification information and the second user identification information may be a combination of a unique ID and a password or biometric information of a user. Biometric information may include the user's fingerprint, iris, and facial image.

The first terminal 210 and the second terminal 220 can perform an operation according to the user's command only after receiving the identification information of the user. The first terminal 210 and the second terminal 220 may correspond to one legitimate user, respectively. Since the first terminal 210 and the second terminal 220 can not be operated except for a legitimate user, the remote surveillance system can maintain high security.

The first terminal 210 may perform step 212 of transmitting the first user identification information and the first terminal identification information to the server 230. The second terminal 220 may also perform the step 222 of transmitting the second user identification information and the second terminal identification information to the server 230. The server 230 may also store the first user identification information, the first terminal identification information, the second user identification information, and the second terminal identification information in a database.

The server 230 may perform step 231 of associating the first user identification information with the first terminal identification information on the database. In addition, the server 230 may perform step 232 of mapping the second user identification information to the second terminal identification information on the database. As described above, one user may correspond to one terminal. Also, the server 230 may store a correspondence relationship between the user identification information and the terminal identification information in the database. Accordingly, when the server 230 receives the user identification information, the server 230 can determine which terminal the user is using. In addition, the server 230 can determine which user is using the terminal when the terminal identification information is received.

The first terminal 210 and the second terminal 220 can communicate wirelessly at 25 m or less. The first user using the first terminal 210 and the second user using the second terminal 220 may be a team working on a set of at least two persons. The first user and the second user can monitor whether each other is in danger by acting in close proximity. The first terminal 210 and the second terminal 220 may be disconnected from the wireless network when the first terminal 210 and the second terminal 220 are separated by more than 25 meters. In this case, the first terminal 210 and the second terminal 220 may output an error message. Error messages can be displayed as sound or light. The first user and the second user may be aware that they are far apart based on the error message.

However, the present invention is not limited thereto. The first terminal 210 and the second terminal 210 may communicate with each other at a distance exceeding 25 meters. The remote surveillance system may include a plurality of location-tracking units for acquiring the location of the terminals. The plurality of location-tracking units included in the remote monitoring system can communicate with the first terminal 210 or the second terminal 220. [ At least three position tracking units may transmit sound waves or electromagnetic waves to the first terminal 210 or the second terminal 220. The first terminal 210 or the second terminal 220 may transmit an ack signal to at least three repeaters in response to the received sound wave or electromagnetic wave. The at least three position tracking units measure the time at which the ACK signal is received from the first terminal 210 or the second terminal 220 from the time the signal is transmitted to the first terminal 210 or the second terminal 220 Can be specified. The server 230 may measure the distance between the first terminal 210 and the second terminal 220 based on the position of the first terminal 210 or the second terminal 220. [ The server 230 may transmit an alarm signal to the first terminal 210 and the second terminal 220 when the distance between the first terminal 210 and the second terminal 220 is less than a threshold value. The first terminal 210 and the second terminal 220 can output an alarm signal in light or sound based on the received alarm signal. The first user and the second user can recognize that they are far from each other based on the output alarm signal, and can move to be close to each other.

The first terminal 210 and the second terminal 220 may communicate with the server 230 wirelessly. The first terminal 210 and the second terminal 220 can constantly maintain a wireless connection with the server with the help of a repeater. The first terminal 210 can wirelessly communicate with the server 230 using the second terminal 220 as a relay. Or the second terminal 220 can wirelessly communicate with the server 230 using the first terminal 210 as a relay.

3 is a flow chart illustrating the operation of a remote surveillance system in accordance with one embodiment of the present disclosure.

The remote monitoring system may include a first terminal 210 and a second terminal 220. The term "terminal" refers to the first terminal 210 or the second terminal 220 for convenience of explanation.

The first terminal 210 may perform a step 311 of outputting a message to position the first terminal 210 within 0 cm to 10 cm from the protection gear of the first user. Also, the second terminal 220 may perform a step 321 of outputting a message to position the second terminal 220 within 0 cm to 10 cm from the protection equipment of the second user.

The first terminal 210 or the second terminal 220 may output a message with sound or light. For example, the first terminal 210 or the second terminal 220 may output a message on the display. Also, the first terminal 210 or the second terminal 220 can output a sound message through the speaker.

The user can listen to or view the message, and move the terminal near his or her protective equipment. For example, the terminal may be a smart watch. Also, the protective gear may be a helmet. The user can lift the terminal and place it near the protective gear on his head.

The first terminal 210 may perform step 312 of obtaining the first position change information of the first terminal 210. [ The second terminal 220 may perform step 322 of obtaining second position change information of the second terminal 220. [

The terminal can acquire the position change of the terminal as the position change information. The terminal may include a sensor capable of detecting motion. The sensor capable of detecting motion may include a gyroscope sensor or a three-axis acceleration sensor. The terminal receives the signals of the sensors and can store the three-dimensional information on the motion of the terminal in the memory. For example, if the user lifts the terminal over the head near the waist, the terminal can receive a signal from the sensor that the terminal is moving in the opposite direction of gravity and store the signal in memory.

The first terminal 210 may perform step 313 of acquiring first protective equipment identification information by communicating with the passive tag embedded in the protective equipment of the first user. Also, the second terminal 220 may perform step 323 of obtaining the second protective equipment identification information by communicating with the passive tag embedded in the protective equipment of the second user.

The protective gear of the first user and the protective gear of the second user may include a passive tag. The first terminal 210 and the second terminal 220 may communicate with the passive tag. The communication distance may be about 10 cm or less, but is not limited thereto. The first terminal 210 and the second terminal 220 may receive identification information of the protective equipment from the passive tag. The identification information of the protective gear may include at least one of the serial number of the protective gear, the use of the protective gear, the previous user of the protective gear, the type of protective gear, the owner of the protective gear, and the use of the protective gear.

The serial code of the protective gear may be a unique code assigned to each protective gear. In order to protect the user, the protection device may have a usage period, and the first terminal 210 or the second terminal 220 may check the usage period of the protection device and notify the user, thereby improving the safety of the user . The period of use of the protective gear may be the date and may be the number of times of use.

The type of protective gear may include gloves, hats, clothing, shoes or glasses. There may be necessary protective equipment for each user's work. The user can check essential equipment through the terminal. In addition, the terminal can communicate with the passive tag included in the protective gear to check whether the user is wearing the proper protective gear.

Also, based on the owner of the protective gear and the previous user information, the terminal can confirm that the user is a party user of the protective equipment, and can confirm the use history of the protective equipment.

In addition, the information on the use of the protective gear may include information such as whether the protective gear is for impact protection, heat resistance, waterproofing, or the like. Based on the usage information of the protective gear, the terminal can determine whether the user wears a protective gear suitable for the user's work.

The first terminal 210 may perform step 314 of generating the first safety information based on the first position change information and the first protective equipment identification information. In addition, the second terminal 220 may perform step 324 of generating second safety information based on the second position change information and the second protective equipment identification information.

The terminal can determine the type of the protective equipment based on the protection equipment identification information. Also, the terminal can determine whether the user wears the protective gear at the correct position based on the position change information of the terminal. For example, the protective gear may be a helmet. The terminal may be a smart watch. When the user moves the terminal to the vicinity of the helmet, the terminal can acquire information on the position change output from the sensor. The terminal may compare the acquired information with previously stored information to determine whether the helmet is in the correct position.

In addition, the terminal can determine whether the user wears protective gear suited to the user's work. Also, the terminal can output a warning message when the user does not wear a protective gear suitable for the job content. For example, the user can input work contents into the terminal. The terminal can determine that it should wear heat resistant gloves based on the work content. The terminal may determine that the user wears heat-resistant gloves based on the identification information of the protective equipment. The terminal may output a warning message by light or sound when the user is not wearing heat-resistant gloves.

The terminal can generate safety information if it determines that the protective gear worn by the user is suitable for the user's work.

The first terminal 210 may perform the step 325 of communicating with the second terminal 220 in a short distance to obtain the second terminal identification information. In addition, the second terminal 220 may perform the step 315 of performing short-distance communication with the first terminal 210 to obtain the first terminal identification information.

As described above, the first terminal 210 and the second terminal 220 can communicate wirelessly without repeaters within 25 m. Or the first terminal 210 and the second terminal 220 may communicate with each other through a repeater. The server can measure the distance between the first terminal 210 and the second terminal 220 using at least three location trackers. The first terminal 210, the second terminal 220 or the server 230 may output an alarm signal when the distance between the first terminal 210 and the second terminal 220 is less than a threshold value. Based on the alarm signal, users can recognize that they are far away from the team member and move in a direction that is close to each other.

The first terminal 210 may acquire the second terminal identification information so that the first user can specify a user to work together with. Also, the second terminal 220 may acquire the first terminal identification information and specify a user to whom the second user works together. For example, the first terminal 210 may query the server to obtain second user identification information corresponding to the second terminal identifier. Also, the first terminal 210 may forcibly alarm the first user if the second terminal identification information is not acquired, or restrict the function thereof so that the first user does not work alone. The terminal can ensure the safety of the user by forcing the user to perform the task with at least one pair.

4 is a flow chart illustrating the operation of a remote surveillance system in accordance with an embodiment of the present disclosure;

The first terminal 210 may perform step 411 of transmitting the first safety information, the first terminal identification information, and the identification information of the second terminal to the server 230. In addition, the second terminal 220 may perform the step 421 of transmitting the second safety information, the first terminal identification information, and the second terminal identification information to the server 230.

Based on the first safety information, the second safety information, the first terminal identification information, and the first terminal identification information, the server 230 transmits (431) a first unlocking code to the first terminal 210, Can be performed. Also, based on the first safety information, the second safety information, the first terminal identification information, and the first terminal identification information, the server 230 transmits the second unlocking code to the second terminal 220 432). The server 230 may perform the step 433 of storing the first unlock code and the second unlock code in the database.

The server 230 of the remote surveillance system can confirm whether or not the protector is worn by the protector for the safety of the user through the safety information. Also, the server 230 transmits the first terminal identification information to the second terminal 220 based on the second terminal identification information sent from the first terminal 210 and the first terminal identification information sent from the second terminal 220, You can confirm that you are going to do it. The server 230 may associate the first terminal identification information and the second terminal identification information with the database. When the server 230 receives only the second terminal identification information sent from the first terminal 210 and does not receive any signal from the second terminal 220, the server 230 transmits a signal requesting information to the second terminal 220 can do. On the other hand, when the server 230 receives only the first terminal identification information sent from the second terminal 220 and does not receive any signal from the first terminal 210, the server 230 transmits a signal requesting information to the first terminal 210 Can be transmitted.

The server 230 may issue a first unlock code and a second unlock code so that users can enter the workplace. The terminal may transmit the first unlock code and the second unlock code to the lock. The locking device can unlock the door of the workplace based on the first unlocking code and the second unlocking code. The first unlocking code and the second unlocking code may be temporary unlocking codes. That is, the first unlock code and the second unlock code can be activated in the database of the server 230 to unlock the door when the operation is in progress. In addition, when the user's work is completed, the first unlocking code and the second unlocking code may be disabled in the database of the server 230 and may no longer be able to unlock the door.

The server 230 may be storing the unlock code in a database. The server 230 may associate the first unlock code with the first terminal identification information. The second terminal identification information may also correspond to a second unlocking code. The administrator can manage the issuance history of the unlock code using the database of the server 230. [ The administrator can also check which terminal the unlock code corresponds to using the database. Also, the administrator can confirm that the first terminal corresponds to the second terminal using the database.

5 is a flow diagram illustrating the operation of a remote surveillance system in accordance with one embodiment of the present disclosure.

The first terminal 210 may perform the step 511 of transmitting the first unlock code and the first terminal identification information to the lock device 510. The second terminal 220 may also perform the step 521 of transmitting the second unlocking code and the second terminal identification information to the locking device 510.

The terminal may request the user identification information of the user before performing a specific operation. That is, the user may have to input user identification information to the terminal to operate the terminal. For example, the terminal may request user identification information of the user before the terminal communicates with the lock device. When the user inputs the user identification information, the terminal can transmit the unlock code and the terminal identification information to the lock device. Since the terminal requests the user identification information of the user before the operation, the remote monitoring system can force one terminal to be allocated to one user. Therefore, the remote monitoring system can enhance security.

The means by which the terminal communicates with the server 230, the means by which the terminal communicates with the locking device 510, and the means by which the terminal communicates with the protective gear may be different. Way communication between the first terminal 210 and the second terminal 220 is possible. The first terminal 210 and the second terminal 220 can communicate with each other using short-distance communication means within 25 meters. However, the present invention is not limited thereto, and the first terminal 210 and the second terminal 220 can perform long distance communication.

The terminal and the server 230 may be capable of long distance communication. The terminal and the server 230 can use bi-directional communication. The terminal 230 and the server 230 may be able to communicate using a repeater even if they are far away.

The terminal and the locking device 510 may utilize short-range communication. For example, the first terminal 210 and the second terminal 220 may communicate wirelessly with the locking device 510 at 10 cm or less. The communication between the terminal and the locking device 510 may be unidirectional communication. For example, the locking device 510 may receive a signal to be transmitted to the terminal. The locking device may transmit the received signal to the server. However, the locking device 510 may not transmit a signal to the terminal.

The communication between the terminal and the protective gear can utilize short-range communication. The communication between the terminal and the protective gear may be a unidirectional communication. For example, the terminal may receive a signal transmitted by the protective equipment. The protective gear may not receive a signal from the terminal.

The lock device 510 may perform step 541 of transmitting the received first unlock code, the first terminal identification information, the second unlock code, and the second terminal identification information to the server 230.

Lock 510 may receive at least two unlock codes from at least two terminals. The lock device 510 may not unlock the door if one unlock code is received. Therefore, the remote surveillance system can work in the workplace only when there are two or more users.

The server 230 may compare the information stored in the database with the first unlock code, the first terminal identification information, the second unlock code, and the second terminal identification information received from the lock device 510. For example, the first unlocking code can be confirmed from the database whether it corresponds to the first terminal identification information. Also, it can be confirmed from the database whether the first terminal identification information corresponds to the second terminal identification information. Further, it can be confirmed from the database whether or not the second unlocking code corresponds to the second terminal identification information.

Based on the received first unlocking code, the first terminal identification information, the second unlocking code and the second terminal identification information, the server 230 transmits (531) an acknowledgment flag to the locking device 510, Can be performed. Locking device 510 may also perform step 542 of unlocking the doors of the workplace based on the confirmation flag. At least two workers can enter the workplace and perform the necessary tasks.

In addition, when the lock device 510 unlocks the doors of the workplace, the server 230 may perform the step of controlling LEDs formed on the floor of the workplace. The LED can indicate a safe path to reach the user's destination. At least one LED may form an arrow to indicate the direction the user will move. The at least one LED is formed in a straight line at the edge of the safe area so that the user can be informed that the inside of the edge is a safe area. LEDs are formed on the floor and emit light, so users can easily recognize the light even if the workplace is dark. The user can easily grasp the route to where the work is required based on the LED light. In addition, LEDs are a safe path for users to navigate, so users can safely move to where they need to work or work in a safe place.

6 is a flowchart illustrating an operation of a terminal of a remote monitoring system according to an embodiment of the present disclosure.

The first terminal 210 may perform a step 610 of periodically checking whether the second terminal 220 is connected to the second terminal 220. For example, the first terminal 210 may transmit an acknowledgment signal to the second terminal 220 periodically. The second terminal 220 may transmit an ACK signal corresponding to the acknowledgment signal to the first terminal 210. It can be confirmed that the first terminal 210 is connected to the second terminal 220 based on the received ACK signal. Also, if the first terminal 210 fails to receive the ACK signal within a predetermined time, the first terminal 210 may determine that the second terminal 220 is not connected. On the other hand, the second terminal 220 may periodically check whether the first terminal 210 is connected to the first terminal 210 or not.

If the second terminal 220 is not connected to the first terminal 210, the first terminal 210 may perform step 620 of transmitting an error signal to the server 230. In the workplace, users should act as a set of at least two people for safety. The first terminal and the second terminal can transmit an error signal to the server 230 when the second user having the second terminal is far away from the first user having the first terminal. Both the first terminal and the second terminal transmit an error signal indicating a connection failure to the server 230 so that even if one terminal fails or fails to transmit a signal to the server 230, The error signal can be transmitted. The server 230 may output a signal indicating the connection failure between terminals based on the received error signal as sound or light. The manager in the vicinity of the server 230 can take necessary measures based on the signal indicating the connection failure between the terminals output by the server.

The first terminal 210 may perform step 630 of obtaining at least one of heart rate information and body temperature information of the first user. Similarly, the second terminal 220 may perform the step of acquiring at least one of the heart rate information and the body temperature information of the second user. Also, when at least one of the heart rate information and the body temperature information falls below a first threshold value or becomes higher than a second threshold value, the first terminal 210 transmits an emergency signal to the second terminal 220 and the server 230 (Step 640). Similarly, the second terminal 220 may perform the step of transmitting an emergency signal to the first terminal 210 and the server 230.

Also, when at least one of the heart rate information and the body temperature information falls below the first threshold value or becomes higher than the second threshold value, the first terminal 210 may perform the step of outputting an alarm. A second user or other operators around the first user can take necessary actions based on the alarm signal output by the first terminal 210. [ Similarly, the second terminal 220 may perform the step of outputting an alarm.

If at least one of the heart rate information and the body temperature information falls below a first threshold value or becomes higher than a second threshold value, the first terminal 210 may display the image captured by the camera included in the first terminal 210 , The heart rate information and the body temperature information to the second terminal 220 and the server 230. [ The second user having the administrator and the second terminal 220 near the server 230 can quickly check the status of the first user based on the image information, the heart rate information, and the body temperature information. Also, the administrator and the second user can quickly take action for the first user.

When the first terminal 210 receives the operation completion signal from the first user, the first terminal 210 may perform the step of deleting the first unlocking code from the memory. In addition, when the second terminal 220 receives the operation completion signal from the second user, the second terminal 220 may perform the step of deleting the second unlocking code. The terminals may also transmit a signal to the server 230 indicating that the operation is completed. The server 230 may deactivate the first unlock code and the second unlock code in the database.

The remote surveillance system of the present disclosure may include a scum remover. The float removing device detects fluctuation of the water level by using a moving body that detects the water surface and removes floating matters while ascending or descending, a linear motor that provides a rising or falling power to the moving body, And a control unit for driving the motor to move the moving object upward or downward. The moving body includes two water level detecting sensors, a collecting hopper, and a valve. The moving body may further include a valve driving portion. The valve driving unit may be located outside the moving body.

The water level sensor detects the water level when the collecting hopper is located below about 1 to 2 mm from the water surface (hereinafter referred to as the hopper moving number) and a water level higher than the hopper moving water level (for example, (Hereinafter, referred to as " valve lock water level "). In another embodiment, the level sensor for detecting the hopper moving level and the level sensor for detecting the level of the valve lock may be provided separately.

The control unit senses the sensing value of the water level sensor and drives the linear motor so that the collecting hopper is located within a range of about 1 to 2 mm from the water surface. When the collecting hopper is located below about 1 to 2 mm from the water surface, And the suspended matter is discharged to the outside through a duct connected to the collecting hopper.

On the other hand, the level sensor detects whether the current level is higher than the valve lock level. In this case, the water in the settling tank is discharged through the pipeline, not by the float to the collecting hopper. The control unit senses the sensed value of the water level sensor and, when the water level exceeds the level of the valve lock, closes the valve installed in the channel so that the water in the settling tank can not be discharged. The control unit controls the valve driving unit so that the valve closes the pipeline when the valve level detection signal is received from the level sensor. When the control unit receives a signal indicating that the current water level is lower than the valve detection level, the control unit controls the valve driving unit to open the pipe.

In the present disclosure, the control unit does not drive the linear motor while the water level is swung by the wave of water. To this end, the scum skimmer of the present disclosure further includes a delay time setting unit for providing delay time information set by the administrator to the control unit.

That is, according to the present disclosure, when the water level is fluctuated and it is detected that the valve lock level is exceeded by the water level sensor, the valve is driven to wait the delay time in the state of closing the pipe, Move to the correct position (about 1 to 2 mm below the water surface). According to the present disclosure, it is possible to prevent a large amount of water containing chemicals from being discharged to the outside through the collecting hopper and pipeline during the standby time during which the wave of the water surface is stabilized.

Further, in this disclosure, if the level sensing value sensed by the water level sensor does not change even after the critical time passes after the control unit drives the linear motor, it is determined that the floating scavenge removal apparatus is malfunctioning. For example, if the linear motor fails and the control unit drives the linear motor, the moving object may not move. In this case, the water level sensing value sensed by the water level sensor does not change. In addition, even if the linear motor operates normally and the moving body moves, if the level detecting sensor fails, the level sensing value does not change. When the failure of the first level sensor is diagnosed, the auxiliary level sensor detects the level through the second level sensor.

The suspended particulate removing apparatus of the present disclosure further includes a warning sound generating unit for generating a warning sound under the control of the control unit, and a communication unit for communicating with an external central control system.

If the level sensing value sensed by the water level sensor does not change even after the critical time has elapsed after driving the linear motor, the control unit determines that the suspension unit is malfunctioning. The control unit drives the alarm sound generator to generate a warning sound, The control system is notified of the failure of the float remover. In addition, if it is determined that the scum skimmer has failed, the controller controls the valve driving unit to close the pipeline by the valve, thereby preventing water from being discharged through the pipeline.

The central control system can remotely monitor and control the operation status of a number of float removers. The central control system informs the manager's mobile communication terminal through the communication network of identification information and malfunction information of the malfunctioning scum removing device when any malfunctioning device is detected. The manager's mobile communication terminal and the suspenders remotely are connected to each other by short-range wireless communication (for example, Bluetooth or ZigBee) so that the administrator can control the suspen- sion remover or check the status of the remover using the mobile communication terminal.

The moving object of the present disclosure has a limit that can be raised or lowered. The slurry removal device of the present disclosure is designed to have an appropriate limit according to the depth of the sedimentation tank to which it is installed. Therefore, when the water level rises or falls within a range exceeding the rising limit value or the falling limit value of the moving object, the moving object can not move even if the control unit drives the linear motor. The control unit senses the rising limit value and the falling limit value of the moving object and does not drive control over the range out of the range.

To this end, the suspended particulate removing apparatus of the present disclosure further includes a vertical limit value setting unit for receiving the rising limit value and the falling limit value from the manager and providing the input to the control unit. The control unit may receive the rising limit value and the falling limit value from the central control system through the communication unit. When the moving object rises to the rising limit and can not rise anymore, when the water level continues to rise, a large amount of water (including chemicals) is discharged through the channel of the collecting hopper. In order to solve this problem, in the present disclosure, if the water level sensor detects that the current water level exceeds the valve lock level, the valve driving unit is driven and controlled so that the pipe is closed by the valve.

Thereafter, when the water level is lowered and the water level sensor detects that the current water level is below the valve lock level, the valve driving unit is driven and controlled to open the pipe by the valve.

In addition, the suspended particulate removing apparatus of the present disclosure may further include a mode setting unit for manually or automatically setting the up / down driving of the moving body, and a hopper up / down key for allowing the manager to raise or lower the moving body in the manual mode .

When the mode setting unit is set to the manual mode, the control unit drives the linear motor according to the manager input value input through the hopper up / down key to raise or lower the moving object.

When the mode setting unit is set to the automatic mode, the control unit receives the water level sensing value through the water level sensor and drives the linear motor while sensing the water level variation so that the collecting hopper can be raised or lowered to be positioned below the water level of a certain depth do.

Various embodiments have been described above. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

The above-described embodiments of the present invention can be embodied in a general-purpose digital computer that can be embodied as a program that can be executed by a computer and operates the program using a computer-readable recording medium. The computer-readable recording medium includes a storage medium such as a magnetic storage medium (e.g., ROM, floppy disk, hard disk, etc.), optical reading medium (e.g., CD ROM,

Claims (5)

A remote monitoring system for water, wastewater and water treatment facilities includes a server and a first terminal, a second terminal and a locking device,
The first terminal receiving first user identification information from a first user and the second terminal receiving second user identification information from a second user;
The first terminal transmits the first user identification information and the first terminal identification information to the server and the second terminal transmits the second user identification information and the second terminal identification information to the server;
Associating the first user identification information with the first terminal identification information in the database and associating the second user identification information with the second terminal identification information;
The first terminal outputs a message indicating that the first terminal should be positioned within 0 cm to 10 cm from the protective gear of the first user and a message to place the second terminal within 0 cm to 10 cm from the protection gear of the second user Outputting by the second terminal;
The first terminal obtaining the first location change information of the first terminal and the second terminal obtaining the second location change information of the second terminal;
Wherein the first terminal communicates with a passive tag embedded in the protective gear of the first user to obtain first protective gear identification information and the second terminal communicates with a passive tag embedded in the protective gear of the second user Obtaining second protective equipment identification information;
The first terminal generates first safety information based on the first position change information and the first protective equipment identification information, and based on the second position change information and the second protective equipment identification information, The terminal generating second safety information;
Wherein the first terminal is in short-range communication with the second terminal to obtain the second terminal identification information;
Wherein the second terminal is in short-range communication with the first terminal to obtain the first terminal identification information;
The first terminal transmitting the first safety information, the first terminal identification information, and the identification information of the second terminal to the server;
Transmitting, by the second terminal, the second safety information, the first terminal identification information, and the second terminal identification information to the server;
Based on the first safety information, the second safety information, the first terminal identification information, and the second terminal identification information, the server transmits a first unlocking code to the first terminal, Transmitting a code to the second terminal and storing the first unlock code and the second unlock code in the database;
The first terminal sends the first unlock code and the first terminal identification information to the lock device and the second terminal transmits the second unlock code and the second terminal identification information to the lock device ;
Transmitting the first unlocking code, the first terminal identification information, the second unlocking code and the second terminal identification information received by the locking device to the server;
The server transmitting an acknowledgment flag to the lock device based on the received first unlock code, the first terminal identification information, the second unlock code and the second terminal identification information; And
The locking device unlocking the door of the workplace based on the confirmation flag,
Wherein the first terminal and the second terminal communicate wirelessly at less than 25 m and the first terminal and the second terminal communicate wirelessly with the server, Wherein the wireless communication is performed in a wireless manner.
The method according to claim 1,
Periodically checking whether the first terminal is connected to the second terminal;
If the second terminal is not connected, the first terminal transmits an error signal to the server;
The first terminal obtaining at least one of heart rate information and body temperature information of a first user;
Transmitting, by the first terminal, an emergency signal to the second terminal and the server when at least one of the heart rate information and the body temperature information falls below a first threshold value or becomes higher than a second threshold value; And
Further comprising the step of the first terminal outputting an alarm when at least one of the heart rate information and the body temperature information falls below a first threshold value or becomes higher than a second threshold value How it works.
3. The method of claim 2,
When the first terminal receives a job completion signal from the first user, the first terminal deletes the first unlock code; And
Further comprising the step of the second terminal deleting the second unlocking code when the second terminal receives the operation completion signal from the second user.
The method of claim 3,
The step of unlocking the door of the workshop comprises:
Controlling the LEDs formed at the bottom of the work area so that the server displays a safe area for the user's work.
5. The method of claim 4,
When at least one of the heart rate information and the body temperature information falls below a first threshold value or becomes higher than or equal to a second threshold value, the first terminal transmits the image captured by the camera included in the first terminal, And transmitting at least one of the body temperature information to the second terminal and the server.

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