KR102164946B1 - Equipment maintenance system in building machine room - Google Patents

Abstract

The present invention relates to a maintenance system for managing various equipment installed in a machine room of a building and, more specifically, to an equipment maintenance system in a building machine room capable of enabling rapid and complete maintenance since all the equipment can be checked without fail by using a self-driving inspection car running along a specified route.

Description

Equipment maintenance system in building machine room}

The present invention relates to a maintenance system for managing various equipment installed in the machine room of a building, and more particularly, it is possible to check all equipment without omission using an autonomous driving inspection car that runs along a predetermined route. It relates to an equipment maintenance system in a building machine room that enables maintenance.

In airports and subway stations used by many people, as well as in shopping centers, government offices, apartments and office buildings, various equipment such as water tanks, pumps, and wastewater treatment equipment as well as boilers and air conditioners are arranged and used in machine rooms located underground. have.

Equipment in these machine rooms is maintained and repaired by specialized management personnel who manage the building. Periodic or non-periodic inspections of equipment can extend the life of the equipment and prevent major accidents such as fire or explosion. For example, in the case of equipment such as generators and power distribution facilities, a lot of heat is generated, so it is very important to check whether the temperature is maintained at the set temperature or whether moisture is occupied.

Equipment inside the machine room is arranged in consideration of the efficient operation of the equipment and ease of inspection. For example, equipment related to air conditioning, equipment related to firefighting, equipment related to cooling and heating, equipment related to electricity, etc. are divided and installed by type. The above-described professional management personnel access individual equipment, check the operation status of the equipment, whether it is malfunctioning, etc., and separately record the checked contents.

Inspection of the above equipment should be performed thoroughly and thoroughly. However, in reality, there are many cases where the inspection of equipment is not properly observed. For example, it is cumbersome to walk to the equipment placed in the corner of the machine room, and some people stop while approaching the equipment and check only with the naked eye from a distance.

Also, in the case of new management personnel, even if they have received prior training, it inevitably takes a lot of time to inspect the equipment. One of the reasons is that there is no established efficient flow line for access to various equipment arranged in the machine room.

Korean Patent Publication No. 10-2018-0106373 (Fault diagnosis system of calorimeter using heat consumption in machine room and remote meter reading data) Domestic Registered Utility Model Publication No. 20-0455417 (equipment moving device in machine room)

The present invention has been created to solve the above problems, makes it possible to check all equipment without omission and quickly, and it is possible to immediately identify the presence or absence of equipment through the status display unit installed in the equipment itself, so that management is convenient, and Its purpose is to provide an equipment maintenance system in the building machine room that can perform long-distance inspections and prevent inspection activities by unqualified persons.

An equipment maintenance system in a building machine room for achieving the above object includes: a wireless charging station installed on one side of a floor of a machine room in which a plurality of equipment is arranged; A driving guide line marked on the floor of the machine room along the traffic line for inspection of the equipment; A location signal transmitter mounted on each of the equipment and outputting its own location information; Including a plurality of autonomous driving inspection cars wirelessly charged on the wireless charging station and provided with an induction line detection unit for sensing the driving guidance line, and a tracking sensor unit for receiving a signal from the location signal transmitting unit,

The autonomous driving inspection car; The autonomous driving inspection car is driven along the driving guidance line, but based on the location information of the position signal transmitting unit received from the tracking sensor unit, a controller capable of stopping the autonomous driving inspection car in front of the position signal transmitting unit, and a vehicle capable of driving And, it is installed on the upper portion of the bogie and includes a workbench that provides a boarding space for a worker to board,

In the machine room, an access door through which an operator enters is installed, and a door signal transmitter that generates a wireless signal when an operator touches his or her security card to enter the machine room is installed outside the door,

The autonomous driving inspection car is provided with a communication unit that receives a signal output from the door signal transmitting unit and transmits it to the controller, and makes the controller prepare to use the autonomous driving inspection car,

The cart is provided with a standby lamp that is lit by the controller to indicate that it is ready for use, and the worktable is further provided with a worker authentication unit for inputting a fingerprint of a worker on the workbench,

The controller is characterized in that it is configured to compare the information received through the door signal transmitting unit with the information transmitted through the worker authentication unit, and transfer control rights of the autonomous driving inspection car to the operator when the operator is the same person.

In each of the above equipment; It is desirable to install a status display device having a normal lamp that lights up in the normal state of the equipment and an abnormal lamp that lights up in an abnormal state,

On the worktable; It includes an optical camera that photographs the normal lamp and the abnormal lamp of the status display device, and a thermal image camera that photographs heat generated by each equipment, and transmits the photographing details to the controller, and the information received by the controller from the photographing unit. A photographing unit that transmits the data to an external control center, a manager terminal, and a cloud server through the communication unit, a switch button for switching the driving mode of the autonomous driving inspection car to an autonomous driving mode and a manual driving mode, and a manual driving mode. It is preferable that an operator manipulates a manual control unit including a steering stick that determines the driving direction of the self-driving inspection car, a start button that starts the self-driving inspection car, and a stop button that stops the self-driving inspection car.

The equipment maintenance system in the building machine room of the present invention made as described above performs inspection on equipment by boarding an autonomous driving inspection car that runs autonomously along a driving guidance line taking into account the equipment location in the machine room. It also allows for quick checks.

In addition, the equipment itself is equipped with a status display indicating the presence or absence of an abnormality in the equipment, so you can check the abnormality of the equipment only by looking at the status display, making it easier to manage, and furthermore, through the camera installed in the autonomous driving inspection car. By checking the status display, it is possible to remotely control the self-driving inspection car and check the equipment at a distance.

In addition, since only pre-certified workers can use the self-driving inspection car, it is possible to prevent inspection activities by unqualified persons.

1 is a plan view of a machine room for explaining an equipment maintenance system in a building machine room according to an embodiment of the present invention.
Figure 2 is a side view showing the individual equipment shown in Figure 1;
FIG. 3 is a diagram showing the structure of the self-driving inspection car and wireless charging station of FIG. 1.
4 is a view for explaining the overall structure and operation method of the equipment maintenance system in the building machine room according to an embodiment of the present invention.

Hereinafter, an embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

The equipment maintenance system in a building machine room of the present invention includes an autonomous driving car that autonomously runs inside a machine room in which various equipment is arranged and checks the state of the equipment. Self-driving cars can not only drive while the operator is on board, but in some cases move along the driving guidance line without the operator on board, and shoot and remotely transmit the state of the equipment. That is, in the case of equipment with very loud noise or equipment with dangerous access by the operator, the operator can remotely control the self-driving car without accessing the equipment to perform regular inspection on the equipment.

This equipment maintenance system includes a wireless charging station installed on one side of a floor of a machine room in which a plurality of equipment is arranged; A driving guide line marked on the floor of the machine room along the traffic line for inspection of the equipment; A location signal transmitter mounted on each of the equipment and outputting its own location information; A plurality of autonomous driving inspection cars that are wirelessly charged on the wireless charging station and equipped with a guidance line detection unit for sensing the driving guidance line and a tracking sensor unit for receiving a signal from the location signal transmitting unit, wherein the autonomous driving check car is ; It has a basic configuration including a controller that drives the self-driving inspection car along the driving guidance line, and stops the self-driving inspection car at a point where the signal from the position signal transmitting unit is the largest received by the tracking sensor unit.

1 is a plan view of a machine room for explaining an equipment maintenance system 100 in a building machine room according to an embodiment of the present invention, and FIG. 2 is a side view illustrating individual equipment shown in FIG. 1.

As shown in FIGS. 1 and 2, a plurality of equipment 16 is disposed inside the machine room 10. The equipment 16 includes, for example, a boiler, a heating and cooling device, a generator, a pump, a fire fighting facility, a wastewater treatment device, and the like, and are appropriately spaced apart for each type or function.

In addition, a driving guide line 15 is marked on the bottom surface of the machine room 10. The driving induction line 15 is a line marked along an optimal movement line for inspection of the equipment 16 and guides the driving of the autonomous driving inspection car 30 to be described later. By applying the driving induction line 15, it is possible to inspect all the equipment 16 in the fastest time.

In the case of a machine room with many types and numbers of equipment, it is inconvenient to carefully check which equipment is before and which is after inspection. Also, new employees who are not familiar with the arrangement of equipment in the machine room may accidentally miss out on several equipment checks. In addition, unscrupulous employees may not check the equipment because it is annoying to walk to the equipment located in the corner of the machine room. It has been known that occasional machine room fire accidents result from such minor inspection failures.

The driving guidance line 15 and the autonomous driving inspection car 30 in this embodiment can completely solve this problem. The driving guidance line 15 is also marked on the rear part of the equipment located at the most corner of the machine room, and the autonomous driving inspection car 30 runs along the driving guidance line 15, so that all equipment can be operated very efficiently. It allows you to check quickly and without fail.

The driving induction line 15 starts from the wireless charging station 20, turns around the equipment in the machine room, and returns to the wireless charging station 20 again. The autonomous driving inspection car 30 starting from the wireless charging station 20 repeats a circular motion that moves along the driving guidance line 15, turns one round, and then returns to the original position.

As shown in FIG. 2, each equipment 16 is equipped with a position signal transmitting unit 17, a communication module 18, and a status display device 19. The position signal transmitter 17, the communication module 18, and the status display device 19 are applied to all the equipment 16 regardless of the type of the equipment 16.

The location signal transmission unit 17 transmits its location information to the outside. For example, it outputs its own position coordinates inside the machine room 10. The output method output from the position signal transmitter 17 can be implemented in various ways.

The information output from the position signal transmitting unit 17 is transmitted to the tracking sensor unit 55 installed in the autonomous driving inspection car 30. The location information transmitted to the tracking sensor unit 55 is transmitted to the controller 46. The controller 46 may move the autonomous driving inspection car 30 based on the received location information to cause the tracking sensor unit 55 to stop in front of the location signal transmitting unit 17. It goes without saying that the signal characteristics output from the position signal transmitting unit 17 of each device are different.

In addition, the communication module 18 is connected to the control sensor (73 in FIG. 4), the manager terminal 71, and the cloud server 75, and wirelessly transmits the state of the equipment 16 to the outside, and door signal is issued. When a signal from the bride 11a is detected, the status display device 19 is activated.

The status display device 19 is a part that displays the basic status of the equipment. For example, it indicates whether the equipment is operating normally or in an abnormal condition. The status display device 19 includes a normal lamp 19a and an abnormal lamp 19b. The normal lamp 19a is a green lamp that is turned on when the equipment is operating normally, and the abnormal lamp 19b is a red lamp that is turned on in an abnormal state. The status display device 19 is disposed at a position that can be easily identified by the autonomous driving inspection car 30 traveling along the driving guidance line 15.

A door signal transmitting part 11a is provided outside the door 11 of the machine room 10. The entrance door 11 is a door through which a worker who manages equipment in the machine room 10 enters and exits. The door signal transmission unit 11a generates a wireless signal when an operator touches his or her security card to enter the machine room 10.

The wireless signal output from the door signal transmitting unit 11a is transmitted to a communication unit (56 in FIG. 3) provided in the autonomous driving inspection car 30. After receiving the signal output from the door signal transmitting unit (11a) once, the communication unit 56 transmits it to the external control center 73, the manager terminal 71, and the controller 46 at the same time.

The control center 73 can check who among the workers entered the machine room 10 at what time through the received information. The manager terminal 71 is a smartphone of a manager who manages workers. In addition, the signal transmitted to the controller 46 makes the controller ready to use the autonomous driving inspection car 30.

Preparation for use of the autonomous driving inspection car 30 refers to a process of blocking the transmission of the transmission resonator 25 to be described later and lighting the standby lamp 41e. The autonomous driving inspection car 30 is wirelessly charged while parked on the wireless charging station 20 when not in use. The structure of the wireless charging station 20 is shown in FIG. 3.

3 is a diagram showing the structure of the autonomous driving inspection car 30 and the wireless charging station 20 of FIG. 1, and FIG. 4 is an overall structure and an equipment maintenance system in a building machine room according to an embodiment of the present invention. This is a diagram for explaining how it works.

As shown, the wireless charging station 20 includes a transmission resonator 25, a transmission module 23, and a power supply 21. The transmission resonator 25 has a built-in transmission coil (not shown) and operates together with the transmission module 23 to output magnetic force of the resonance frequency upward. The power supply 21 serves to supply power to the transmission module 23. The power transmission method between the transmission resonator 25 and the reception resonator 43 to be described later follows a general magnetic resonance method. The wireless charging station 20 is disposed on one side of the floor surface of the machine room 10, and has more transmission resonance units 25 than the number of autonomous driving inspection cars 30 in operation.

On the other hand, the self-driving inspection car 30 has a driving cart 40 that can be driven and a worktable 50 installed above the driving cart 40. The driving cart 40 repeats driving and stopping along the driving induction line 15 described above, and includes a chassis 41a having a wheel 41b, a reception resonator 43, a reception module 44, and a battery. 45, a controller 46, a steering part 47, a drive part 48, a standby lamp 41e, an induction line detection part 42, a swivel motor 49, and a support part 41c.

The receiving resonator 43 is installed at the bottom of the chassis 41a, and outputs magnetic force by receiving a resonance signal from the transmitting resonating unit 25. The magnetic force generated in the receiving resonator 43 is converted into an electric signal through the receiving module 44 and then charged in the battery 45.

The driving unit 48 includes a motor (not shown) that drives the wheel 41b. The motor receives a signal from the controller 46 and outputs a rotation torque, and causes the autonomous driving inspection car 30 to travel. The steering unit 47 serves to adjust the driving direction of the autonomous driving inspection car 30. The steering unit 47 is also operated under the control of the controller 46. The operating mechanism of the drive unit 48 and the steering unit 47 itself is the same as a transport robot operated in a warehouse of a large distribution center.

The standby lamp 41e is an LED lamp that is turned on and off by the controller 46, indicating that the autonomous driving inspection car 30 is ready for use. The operator selects and boards the self-driving inspection car 30, which is illuminated by the standby lamp 41e, among the several autonomous inspection cars 30.

As mentioned above, the controller 46 receives the signal output from the door signal generator 11a through the communication unit 56, and turns on the standby lamp 41e based on the signal received through the communication unit. . If there is no signal from the door signal generator 11a, the standby lamp 41e maintains an off state.

The guidance line detection unit 42 is a sensor that detects the driving guidance line 15. That is, when the autonomous driving inspection car 30 is driven, the position of the driving guidance line 15 is detected and followed. The driving method through the guidance line detection unit 42 also has the same operating principle as the transport robot in the distribution center, and a description thereof will be omitted.

The swivel motor 49 is installed in the upper center of the chassis 41a and supports the worktable 50 so as to be rotatable. The motor shaft 49a of the swivel motor 49 extends vertically and rotates the worktable main body 51 in a required direction. The operation of the swivel motor 49 is also controlled by the controller 46.

Reference numeral 41c denotes a support. The support part 41c prevents the work table body 51 from tilting to either side. In other words, it is to prevent the work table body 51 from being inclined by the eccentric force. As long as this function can be performed, the configuration of the support part 41 c may vary.

On the other hand, the work table 50, a work table body 51 providing a boarding space 51a in which the operator is located, a photographing unit 52, a manual operation unit 54, a worker authentication unit 53, a tracking sensor unit ( 55) A communication unit 56 and the like are provided.

The boarding space 51a of the worktable main body 51 is a space that is open to the top, and has a railing (no drawing symbol) like an aerial workbench. In addition, the central portion of the bottom of the work table body 51 is fixed to the motor shaft 49a. It is as mentioned above that the worktable main body 51 can be rotated through the swivel motor 49.

The photographing unit 52 includes an optical camera 52a and a thermal imaging camera 52b. The optical camera 52a photographs the normal lamp 19a and the abnormal lamp 19b of the status display device 19. In addition, the thermal imaging camera 52b photographs heat generated by each device 16. The image captured by the photographing unit 52 is transmitted to the controller 46.

The controller 46 transmits the image information received from the photographing unit 52 to the external control center 73, the manager terminal 71, and the cloud server 75 through the communication unit 56. The contents of the self-driving inspection car 30 photographed while driving along the driving guidance line 15 are all transmitted to the outside. The photographing unit 52 starts photographing once the self-driving inspection car 30 departs, whether the operator is on board or not in the boarding space 51a.

The manual operation unit 54 is operated by an operator in the manual operation mode, and includes a steering stick 54a, a stop button 54b, and a start button 54c. The steering stick 54a adjusts the driving direction of the autonomous driving inspection car 30. It acts like the steering wheel of a vehicle. The stop button 54b is a switch that stops the autonomous driving inspection car 30. When the stop button 54b is pressed while moving, the autonomous driving inspection car 30 stops. In addition, the start button 54c is a switch for restarting the stopped autonomous driving inspection car 30.

In addition, a switch button 54e is installed on one side of the manual operation unit 54. The change button 54e is a switch for changing the driving mode of the autonomous driving inspection car 30 from the autonomous driving mode to the manual driving mode, or from the manual driving mode to the autonomous driving mode.

It is a part for inputting a fingerprint of a worker who has boarded the worker authentication unit 53 and the worktable 50. The worker who climbed on the workbench 50 is to check the identity by putting his fingerprint on the worker authentication unit 53. Information input through the worker authentication unit 53 is sent to the controller 46.

The controller 46 compares the information received through the door signal transmitting unit 11a with the information transmitted through the worker authentication unit 53 to determine whether the worker is the same person. The controller 46 transfers the control right of the autonomous driving inspection car to the operator when the operator matches. However, if the workers do not match, control is not handed over. The control right includes all decisions, such as determining the automatic and manual driving of the autonomous driving inspection car 30, stopping or restarting at a certain point, or driving off the driving guidance line 15. If the workers do not match, the autonomous driving inspection car 30 does not move.

The tracking sensor unit 55 makes the autonomous driving inspection car 30 stop in front of the position signal transmitting unit 17 in response to a signal output from the position signal transmitting unit 17. As mentioned above, since the characteristics of the position signals output from the position signal transmitting unit 17 of each equipment 16 are unique, the autonomous driving inspection car is based on the sensitivity of the tracking sensor unit 55 ( 30) can be positioned.

Of course, in the case of passing the autonomous driving inspection car 30 running at constant speed non-stop without temporarily stopping in front of each equipment 16, the mutually sensitive information of the position signal transmitting unit 17 and the tracking sensor unit 55 is reference material. Is only used as. For example, it is used to confirm that the autonomous driving inspection car 30 is driving without deviating from the route. Of course, all driving information of the autonomous driving inspection car 30 is transmitted in real time to the control sensor 73, the manager terminal 71, and the cloud server 75 through the communication unit 56.

The operation of the equipment maintenance system 100 in the building machine room according to the present embodiment having the above configuration is performed as follows.

First, when an operator for checking the equipment in the machine room 10 approaches the door 11 and contacts his or her security card with the door signal transmitting unit 11a, the door 11 is opened and the door signal transmitting unit ( A radio signal is output from 11a).

The output wireless signal is simultaneously transmitted to the external control center 73, the manager terminal 71, and the controller 46 through the communication unit 56 of the autonomous driving inspection car 30. The autonomous driving inspection car 30 is always located above the wireless charging station 20 and charged in the standby state.

The control center 73 stores a history such as who entered the machine room 10 at what time among the workers through the received information. In addition, the controller 46 blocks the transmission of the transmission resonator 25 and turns on the standby lamp 41e to inform which of the plurality of autonomous driving inspection cars 30 to use.

The operator starts the inspection by boarding the autonomous driving inspection car 30 with the standby lamp 41e lit. That is, while the autonomous driving inspection car 30 is mounted, it moves along the driving guidance line 15 and determines whether or not the equipment 16 is abnormal. While the autonomous driving inspection car 30 passes between the equipment, the photographing unit 52 photographs the equipment 16 and the status display device 19 and transmits the picture to the controller 46 in real time.

When an operator detects an abnormality during equipment inspection, press the switch button 54e and the stop button 54b to stop the autonomous driving inspection car 30 and take necessary measures. When the action is completed, press the start button 54c and the changeover button 54e to continue the inspection. After completing the maintenance by turning the driving induction line 15 one round, the autonomous driving inspection car 30 is parked at the wireless charging station 20 and the inspection process is completed.

As described above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications are possible by those of ordinary skill within the scope of the technical idea of the present invention.

10: Machine room 11: Entrance door 11a: Door signal transmitter
15: driving induction line 16: equipment 17: location signal transmitter
18: communication module 19: status display device 19a: normal lamp
19b: abnormal lamp 20: wireless charging station 21: power
23: transmission module 25: transmission resonator 30: autonomous driving inspection car
40: running cart 41a: chassis 41b: wheel
41c: support part 41e: atmospheric lamp 42: induction line detection part
43: receiving resonator 44: receiving module 45: battery
46: controller 47: steering unit 48: driving unit
49: swivel motor 49a: motor shaft 50: worktable
51: work platform main body 51a: boarding space 52: photographing unit
52a: optical camera 52b: thermal imaging camera 53: worker authentication unit
54: manual control unit 54a: steering stick 54b: stop button
54c: start button 54e: switching button 55: tracking sensor unit
56: communication department 71: manager terminal 73: control center
75: cloud server 100: maintenance system

Claims (2)

A wireless charging station installed on one side of the floor of the machine room in which a plurality of equipment is arranged; A driving guide line marked on the floor of the machine room along the traffic line for inspection of the equipment; A location signal transmitter mounted on each of the equipment and outputting its own location information; Including a plurality of autonomous driving inspection cars wirelessly charged on the wireless charging station and provided with an induction line detection unit for sensing the driving guidance line, and a tracking sensor unit for receiving a signal from the location signal transmitting unit,
The autonomous driving inspection car; The autonomous driving inspection car is driven along the driving guidance line, but based on the location information of the position signal transmitting unit received from the tracking sensor unit, a controller capable of stopping the autonomous driving inspection car in front of the position signal transmitting unit, and a vehicle capable of driving And, it is installed on the upper portion of the bogie and includes a workbench that provides a boarding space for a worker to board,
In the machine room, an access door through which an operator enters is installed, and a door signal transmitter that generates a wireless signal when an operator touches his or her security card to enter the machine room is installed outside the door,
In the autonomous driving inspection car,
A communication unit is installed that receives the signal output from the door signal transmitting unit and transmits it to the controller, and makes the controller prepare to use the autonomous driving inspection car,
The cart is provided with a standby lamp that is lit by the controller to indicate that it is ready for use, and the worktable is further provided with a worker authentication unit for inputting a fingerprint of a worker on the worktable
The controller compares the information received through the door signal transmitting unit with the information transmitted through the worker authentication unit, and transfers control rights of the autonomous driving inspection car to the operator when the operator is the same person. The method of claim 1,
In each of the above equipment;
Equipped with a status display device having a normal lamp that lights up in the normal state of the equipment and an abnormal lamp that lights up in an abnormal state,
On the worktable;
It includes an optical camera that photographs the normal lamp and the abnormal lamp of the status display device, and a thermal image camera that photographs heat generated by each equipment, and transmits the photographing details to the controller, and the information received by the controller from the photographing unit. A photographing unit that transmits the data to an external control center, an administrator terminal, and a cloud server through the communication unit,
A switch button for switching the driving mode of the autonomous driving inspection car to an autonomous driving mode and a manual driving mode,
A building machine room equipped with a manual control unit that is operated by the operator in the manual driving mode, including a steering stick that determines the driving direction of the self-driving inspection car, a start button that starts the self-driving inspection car, and a stop button that stops the self-driving inspection car. My equipment maintenance system.

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