KR101663653B1

KR101663653B1 - Management device of facility and safety in construction location by using PLC and Wi-Fi

Info

Publication number: KR101663653B1
Application number: KR1020150097609A
Authority: KR
Inventors: 강민석; 조석
Original assignee: (주)큐로스; (주) 에프엠테크놀러지
Priority date: 2015-07-09
Filing date: 2015-07-09
Publication date: 2016-10-07

Abstract

The present invention relates to a safety and facility management apparatus for a construction site that manages facility facilities such as equipment and safety of a workforce at a construction site, and more particularly, It detects the concentration and determines whether the area is present dangerous area, and it finds the location of the facility and the workforce through Wi-Fi module that communicates with the surrounding facilities and the worker. And the communication for monitoring and control of the environmental sensor group and the Wi-Fi module is not using a separate communication line but is easy to install and dismantle at the construction site by power line communication through the power cable supplying power to them And low-cost power line communication is possible, and the safety of the construction site using the gateway equipped with environmental sensor group and Wi-Fi module Related to water management devices.
A safety and facility management apparatus for a construction site using a gateway equipped with an environmental sensor group and a Wi-Fi module capable of power line communication according to the present invention is provided with a plurality of environments Sensor group; A plurality of Wi-Fi modules installed in various places of a construction site to communicate with surrounding wireless terminals; A power cable for supplying electric power to the environmental sensor group and the Wi-Fi module; A PLC module for supporting detection of data of the environment sensor group and wireless communication data of the Wi-Fi module to power line communication through the power cable; A PLC modem for supporting power line communication with the PLC module through the power cable; a controller for monitoring and controlling the environmental sensor group and the Wi-Fi module via the PLC modem; A data communication unit that transmits detection data of the environment sensor group and wireless communication data of the Wi-Fi module to a control center and transmits a command signal transmitted by the control center to the controller; And a remote control panel including a built-in enclosure.

Description

[0001] The present invention relates to a safety management system and a facility management system using a gateway equipped with an environmental sensor group and a Wi-Fi module,

The present invention relates to a safety and facility management apparatus for managing facility facilities such as equipment at the construction site and safety of the workforce, and more particularly, The location of the facility and the workforce is determined through the communication of the Wi-Fi module of the gateway and the wireless terminal worn by the workforce. , The management of the safety and facilities of the construction site, and the communication for monitoring and control of the gateway equipped with environmental sensor group and Wi-Fi module is done not by using a separate communication line but by using a power cable Environment that can be installed and demolished at the construction site by using communication (PLC: Power Line Communication) and cost-effective power line communication Sensor module and a Wi-Fi module equipped with a gateway.

In the large construction site, many manpower and facilities are put in, and their management is very important to prevent safety accidents.

Supervisors manage them at construction sites, but there is a limit, so it is necessary to manage them together at a remote control center.

Thus, as shown in the registered patent No. 1033349, " Vision Monitoring System and Method for Wearing Safety Hats ", various types of safety management devices are installed on the construction site, and monitoring and controlling safety management devices A remote control panel is provided and the remote control panel communicates with the remote control center so that the control center can monitor and manage the situation of the construction site.

According to the prior art, a safety management device installed at a construction site and a remote control panel are connected to each other through a communication cable for safety management of the workforce and facilities of the construction site.

However, once the construction is completed, all the facilities installed at the construction site and the communication cables installed for safety management will be removed, so construction and demolition of the communication cable will increase the time and cost of the construction.

Therefore, there is a desperate need for means for reducing the construction time and cost due to the installation and disassembly of the communication cable for monitoring and controlling these devices while providing various safety management devices for safety management on the construction site.

In addition, high voltage power is supplied to the construction site or the industrial site for smooth power supply, which is an element that hinders smooth communication by affecting electromagnetic waves on the communication cable. Therefore, the design of the power line communication module using the existing wiring is necessary to improve the communication reliability.

The remote control panel includes an enclosure for inspecting and controlling the safety control devices provided at the construction site and for protecting the devices such as a controller for communicating with the control center and a controller.

The controller such as the controller embedded in the remote control panel is electronic equipment and is susceptible to moisture and dust. Therefore, the enclosure with built-in controller is sealed to prevent foreign substances such as water and dust from entering. However, It can not be done.

In particular, the remote control panel on the construction site is exposed to the dust generated during construction due to the nature of the place, so the dustproof function is important.

However, when the internal temperature and humidity of the housing are increased, it takes a considerable time to lower the temperature and humidity.

Therefore, if the temperature or humidity inside the enclosure becomes high, abnormal operation may occur due to malfunction of the device (controller) installed in the enclosure, or the device may not operate due to damage of the device due to insulation breakdown or rust There is a problem that arises. In addition, dusts such as yellow dust frequently accumulating in recent years accumulate on the equipment substrate in the enclosure due to high humidity, which may cause not only malfunction of equipment but also fire.

Therefore, if the temperature and humidity inside the enclosure become high, it is necessary to forcibly lower the temperature and humidity inside the enclosure to prevent the damage or malfunction of the device or the risk of fire.

The remote control panel is provided with equipment such as an outlet and an exhaust fan for circulating the inside and outside of the enclosure so as to lower the temperature and humidity of the enclosure. The outside dust and water are then introduced into the enclosure through the outlet, It is necessary to provide an exhaust fan unit capable of circulating the inside and outside of the enclosure without sacrificing the enclosure structure of the enclosure to lower the temperature and humidity at high temperature or high humidity.

Also, since the enclosure has a closed structure for waterproofing and dustproofing, if the door of the enclosure is not opened for a long period of time, the door may not open easily.

Therefore, a means is required to automatically open the door when the door of the housing is unlocked.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described need, and it is an object of the present invention to provide a remote control panel and a safety management apparatus on a construction site to perform power line communication through a power cable supplying power to the facility, It provides power line communications that saves cost, saves time and money in managing installed communication cables, and provides safety and facility management equipment for construction sites using a gateway equipped with environmental sensors and Wi-Fi modules. The purpose.

In addition, when the enclosure of the remote control panel has a closed structure and the temperature and humidity inside the enclosure are increased, the state of the enclosure is maintained for a long period of time and the electronic devices installed in the enclosure are damaged or malfunctioned. The waterproof property of the exhaust fan unit is strengthened so that moisture or dust can be prevented from flowing into the exhaust fan unit through the introduced exhaust fan unit for forcedly discharging the air inside the housing to the outside so as to solve the problems that occur, , It is possible to perform power line communication with higher maintenance and economical efficiency so that only the sealing pad can be replaced easily when the waterproofing property is weakened according to the waterproof property of the building, and the safety and facility management device using the gateway equipped with environmental sensor group and Wi-Fi module Another purpose is to provide.

Further, it is possible to perform power line communication with the automatic opening device of the door so that the door can not be easily opened when the door of the housing is to be opened by not opening the door of the housing for a long time, Another object of the present invention is to provide a safety and facility management apparatus for a construction site using the gateway equipped with the gateway.

In order to achieve the above object, a safety and facility management apparatus for a construction site using a gateway equipped with an environment sensor group and a Wi-Fi module capable of power line communication according to the present invention,

A plurality of environmental sensors installed in various places of a construction site to detect the concentration of components of ambient air;

A plurality of Wi-Fi modules installed in various places of a construction site to communicate with surrounding wireless terminals;

A power cable for supplying electric power to the environmental sensor group and the Wi-Fi module;

A PLC module for supporting detection of data of the environment sensor group and wireless communication data of the Wi-Fi module to power line communication through the power cable;

A PLC modem supporting power line communication with the PLC module via the power cable,

A controller for monitoring and controlling the environmental sensor group and the Wi-Fi module via the PLC modem;

A data communication unit communicating with the control center to transmit the detection data of the environment sensor group collected in the controller and the wireless communication data of the Wi-Fi module to the control center, and transmitting a command signal transmitted by the control center to the controller; ,

The enclosure housing the PLC modem, the controller, and the data communication unit

And a remote control panel including a remote control panel including a Wi-Fi module, and is capable of power line communication including an environmental sensor group and a Wi-Fi module,

Digital door locks,

An electromagnet operatively associated with the digital door lock,

And an attachment member attached by the magnetic force of the electromagnet,

Locking means for locking or unlocking the door of the housing;

The automatic opening means (14)

A mounting member coupled to an inner side surface of one side edge of the front opening of the housing and having a sliding portion in the front-

An opening member disposed in the sliding portion and elastically supported forward;

And a restraining member hinged to an inner surface of the door so that an upper protrusion is attached to the second magnetic surface of the electromagnet and a front end of the opening member is brought into contact to restrain the withdrawal of the opening member,

And opening the door automatically by pressing the inner surface of the door after unlocking the locking means.

Further, the mounting member is provided with a receiving portion that is bent upward at the rear end of the sliding portion,

Wherein a stopper portion protruding outwardly is provided at a middle portion of the opening member,

And the opening member is resiliently supported toward the inner side surface of the door by the elastic body disposed between the receiving portion and the catch.

The safety and facility management apparatus of the construction site using the gateway equipped with the environment sensor group and the Wi-Fi module capable of power line communication according to the present invention configured as described above are separately provided for the communication between the remote control panel and the safety management apparatus at the construction site It is possible to save time and cost for installing and disassembling a communication cable, and there is no inconvenience in management.

When the temperature and humidity increase, the remote control panel drives the exhaust fan unit to exhaust the air inside the enclosure to the outside, forcing the temperature, humidity and fine dust inside the enclosure to be discharged to the outside and accumulating high temperature, high humidity and fine dust The present invention relates to an exhaust fan unit for an air conditioner, which is capable of preventing a malfunction or damage of a device provided inside the enclosure and preventing a fire from occurring, enhancing the waterproofness of the exhaust fan unit to prevent moisture or dust from entering the interior of the enclosure, In this case, only the sealing pad can be easily replaced,

The present invention is an invention useful for industrial development because it can prevent the problem that the door automatically opens when the door is unlocked and the door is automatically opened by pressing the door from the inside.

FIG. 1 is a block diagram of a safety and facility management apparatus for a construction site using a gateway equipped with an environmental sensor group and a Wi-Fi module capable of power line communication according to the present invention.
2 is a schematic configuration diagram of a remote control panel according to the present invention;
3 is a perspective view of the exhaust fan unit introduced into the enclosure of the remote control panel to circulate the inside and outside of the enclosure to lower the temperature and humidity inside the enclosure and to remove fine dust;
4 is a view for explaining a means for automatically opening a door;

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

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

As shown in FIG. 1, a safety and facility management apparatus for a construction site using a gateway equipped with an environmental sensor group and a Wi-Fi module capable of power line communication according to the present invention includes environment sensors S1 and S2 , S3, Wi-Fi module 1, power cable 5, PLC module 3, and remote control panel 200.

The environment sensors S1, S2 and S3, the Wi-Fi module 1 and the PLC module 3 are mounted on the gateway 7 and the gateway 7 is connected to a power outlet (not shown) (Not shown) incorporated in the gateway converts power supplied from the power cable 5 into driving power and supplies power to the gateway 5 S2, and S3, the Wi-Fi module 1, and the PLC module 3, as shown in FIG.

The PLC module 3 extracts necessary data for the power cable 5, processes the data, or transmits necessary data signals.

The environmental sensors S1, S2, and S3 may be mounted on the gateway to be exposed to the outside, or may be mounted on the interior of the gateway to detect concentration of the surrounding air.

The environmental sensors S1, S2, and S3 include an oxygen sensor for detecting the oxygen concentration in the surroundings, a carbon dioxide sensor for detecting the concentration of carbon dioxide, and a nitrogen sensor for detecting the concentration of nitrogen.

Various kinds of equipment such as excavators, forklifts, dump trucks and welding machines are used in the construction site, and various kinds of tanks such as oxygen tanks and nitrogen tanks are used. Soot discharged from these equipment and medium (oxygen and nitrogen) In case of leakage, safety accidents can be caused by them. Especially, when working in an enclosed space such as a tunnel, oxygen is gradually lacking and the risk of safety accidents is increased due to an increase of harmful component gas.

Therefore, the gateway including the environmental sensors S1, S2, and S3 detects ambient air components at various points of the construction site and monitors the control center in real time using power line communication to prevent safety accidents.

The Wi-Fi module 1 wirelessly communicates with wireless terminals 9 existing in the vicinity to exchange data.

The wireless terminal 9 is mounted on a work force and various equipment operated in the field.

A plurality of Wi-Fi modules 1 installed in various places in the field and communicating with the wireless terminal 9 can grasp the position of each wireless terminal 9 using the principle of triangulation. That is, when the Wi-Fi module 1 communicates with the same wireless terminal 9 at three or more positions that know the location, the position of the wireless terminal can be calculated, and a larger number of the Wi- The position of the wireless terminal 9 that is calculated when communicating with the wireless terminal 9 is more accurate. On a straight line site, such as a tunnel construction site, a Wi-Fi module (1) can also be used to calculate the location.

By knowing the position of each wireless terminal 9, that is, the position of the work force and the equipment through the plurality of Wi-Fi modules 1,

They can monitor and manage where they are currently working,

In addition, it is possible to anticipate the risk of collision between the work force and the equipment, and it is possible to prevent the collision by paying attention to the work force through the wireless terminal 9 equipped with the work force when the collision is predicted.

The PLC module 3 can transmit the detection data detected by the environmental sensors S1, S2 and S3 and the wireless communication data of the wireless terminal 9 received by the Wi-Fi module 1 via power line communication And transmits the data to the remote control panel 200 through the power cable 5 so that data transmitted from the remote control panel 200 through the power cable 5 can be transmitted to the corresponding environmental sensor group or the Wi- ) Into data that can be processed.

The power cable 5 supplies power to facilities such as various devices using electricity at a construction site and lighting and is connected to the environment sensors S1, S2 and S3, the Wi-Fi module 1 and the PLC module 3) Also supply power. The PLC module 3 and the PLC modem 230 of the remote control panel 200 communicate with each other via a power line.

The remote control panel 200 communicates with the environmental sensor groups S1, S2, S3 and Wi-Fi module 1 installed on the construction site by power line communication to detect the detection data of the environmental sensors S1, S2, S3 and Wi -Fi module 1 receives wireless communication data with the wireless terminal 9 that wirelessly communicates and monitors them and sends command signals to the environmental sensor groups S1, S2, and S3 and the Wi-Fi module 1 Control them,

S2, and S3 and wireless communication data of the Wi-Fi module 1 to the control center 100 by communicating with the control center 100 at a remote place by wire communication or Internet communication And receives and processes command signals transmitted by the control center 100.

The remote control panel 200 includes a PLC modem 230 for supporting power line communication with the PLC module 3 through the power cable 5, Fi module 1 and a data communication unit 210 for communicating with the control center 100. The controller 220 controls the operation of the control center 100,

2 and 3, the mechanical structure of the remote control panel is shown in more detail. Hereinafter, description will be made with reference to FIG. 2 and FIG.

The remote control panel P (shown as '200' in FIG. 1) includes a housing 10, a temperature sensor T, a humidity sensor H, an exhaust fan unit 20 and a configuration of the intake fan units 13 and 15 Element.

The housing 10 incorporates various devices including the controller C (indicated by '220' in FIG. 1) to protect the built-in controller C from external shocks or the like.

The enclosure 10 has a hermetically sealed structure to prevent moisture and dust from entering the enclosure 10, thereby preventing the built-in controller C from being damaged or malfunctioning.

The enclosure 10 is provided with a door 11, and the door may be provided with a sight window (not shown) for allowing a user to monitor the inside of the door.

Illumination (not shown) is installed inside the enclosure 10 and the light is turned on under the control of the controller C when the door 11 of the enclosure 10 is opened and extinguished when the door 11 is closed .

The enclosure (10) has a hermetically sealed structure, so that the temperature inside the enclosure rises due to the high temperature of the outside in the hot summer and the heat generated by the equipment installed in the enclosure in the hot summer. The sealing structure of the housing (10) prevents the moisture and dust from penetrating into the inside of the housing (10), but since the sealing structure can not be perfect, the outside moisture permeates and when the humidity rises once, It is not easily lowered.

Therefore, once the temperature and humidity inside the housing 10 are raised during the hot summer, the internal air is not discharged to the outside, and the state of high temperature and high humidity is maintained for a long time to cause malfunction or damage of the controller C, Dust penetrated into the inside of the apparatus is accumulated on the substrate of the apparatus because of moisture, and there is a high risk of causing fire generation.

Therefore, it is preferable to provide a magnetic shielding function for forcibly discharging and protecting the inside of the housing 10 to the outside when the inside of the housing 10 becomes hot or humid.

The present invention is characterized in that the housing 10 is provided with a temperature sensor T, a humidity sensor and an exhaust fan unit 20 so that the remote control panel has a magnetic protection function and the controller C is provided with a temperature sensor T and a humidity sensor H , The exhaust fan unit 20 is driven to discharge the internal air of the housing 10 to the outside.

The temperature sensor T senses the temperature inside the enclosure 10 and transmits the sensed temperature to the controller C. The humidity sensor H detects the temperature inside the enclosure 10 and controls the controller C, And the controller C compares the temperature transmitted by the temperature sensor T and the humidity transmitted by the humidity sensor H with the reference temperature and the reference humidity respectively, The air inside the enclosure 10 is discharged to the outside to lower the temperature and the humidity inside the enclosure 10 and the fine dust that has infiltrated into the enclosure 10 is discharged to the outside together.

When the air inside the housing 10 is discharged to the outside by the driving of the exhaust fan unit 20, the outside air needs to flow into the housing 10 so that the housing 10 is provided with an inlet 12 A filter 13 is provided in the inlet 12 so as to prevent dust from entering from the outside and an intake fan 15 capable of forcibly introducing outside air into the filter 13 is provided.

The exhaust fan unit 20 includes a duct 21 provided in a discharge port 14 of the housing 10 to provide a passage through which the indoor air is discharged to the outside, And an exhaust fan 23 for forcibly discharging the air inside the duct 21 to the outside through the duct 21. When the exhaust fan 23 is in an inoperative state, Dust and water can penetrate into the interior.

An opening and closing plate 30 for opening and closing the duct 21 is provided in the duct 21 so that external moisture and dust can not penetrate through the duct 21 when the exhaust fan 23 is not operated, The controller C uses the motor 40 to rotate the opening and closing plate 30 so that the duct 21 is opened when the exhaust fan 23 is driven and the duct 21 Closing.

The opening and closing plate 30 has a clearance with the inner surface of the duct 21 so that the opening and closing plate 30 can rotate inside the duct 21 and the opening and closing plate 30 closes the duct 21 In the state, external moisture and dust penetrate through the tolerance.

In order to prevent moisture and dust from penetrating through the gap between the opening and closing plate 30 and the inner surface of the duct 21, a soft sealing pad 50 is formed on the rim of the opening and closing plate 30, To seal the gap.

The outer diameter of the sealing pad 50 is longer than the inner diameter of the duct 21 so that the sealing pad 50 is in surface contact with the inner surface of the duct 21 and is in close contact with the inner surface of the duct 21.

The sealing pad 50 is made of a soft material such as silicone or rubber and has excellent elasticity (restoring force), so that the sealing pad 50 is in close contact with the inner surface of the duct 21 in a surface contact manner.

The opening and closing plate 30 is rotated by the motor 40 controlled by the controller C and the closing pad 50 is brought into close contact with the inner surface of the duct 21 Or disconnected to open or close the duct 21,

The sealing pad 50 is in contact with the inner surface of the duct 21 and is repeatedly worn while being repeatedly worn. When the sealing pad 50 is in a state of close contact for a long period of time, And is closed after the next opening, the adhesion becomes weak.

Therefore, it is necessary to minimize the wear and adhesion of the sealing pad 50. For this purpose, the present invention is characterized in that the opening / closing plate 30 rotates 180 degrees in two successive steps of 90 degrees, Then, the ducts 21 are opened and closed by rotating 180 degrees in the opposite direction twice by 90 degrees.

There are three ways of rotating the opening and closing plate 30 for opening and closing the duct 21. First, there is a method of continuously rotating 90 degrees in one direction (forward direction or reverse direction), second, a method of alternately rotating 90 degrees in forward direction and reverse direction, and a third method of rotating twice 90 degrees in the forward direction and twice 90 degrees in the reverse direction .

In the first method and the second method, only one surface of the sealing pad 50 is continuously contacted with the inner surface of the duct 21 at the opening and closing. In the third method, both surfaces of the sealing pad 50 are alternately And is brought into contact with the inner surface. Thus, in the third method, the both sides of the sealing pad 50 are uniformly worn, and the edge of the sealing pad 50, which is in contact with the duct 21, is alternately folded on both sides to prevent deformation.

As described above, according to the present invention, even if the opening / closing plate 30 is rotated in the second mode to minimize wear and deformation of the sealing pad 50, the sealing pad 50 is worn and its adhesion is weakened if it is used for a long period of time. At this time, it is economically advantageous to replace only the sealing pad 50 instead of replacing both the duct 21, the opening and closing plate 30 and the sealing pad 50.

The present invention provides a replacement means 60 for replacing the sealing pad 50 and a detachment means 70 for detachably attaching the opening and closing plate 30 to the duct 21 for replacement do.

The replacement means (60) for interchangeably coupling the sealing pad (50) to the opening / closing plate (30)

A branching portion 61 branching from the inside of the sealing pad 50 to both sides and covering both sides of the rim of the opening / closing plate 30,

A fitting ring 63 provided at an inner end of the branching section 61,

A seating groove 65 formed in the opening / closing plate 30 and in which the fitting ring 63 is inserted and seated,

And a pressing portion 67 protruded above the seating groove 65 to press the surface of the fitting ring 63.

The branching section 61 and the fitting ring 63 are integrally formed with the sealing pad 50. In other words, the branching section 61 and the fitting ring 63 are formed in the sealing pad 50 by a single injection molding process, .

The minimum separation distance between the seating groove 65 and the pressing portion 67 is smaller than the diameter of the fitting ring 63 so that the fitting ring 63 is in contact with the seating groove 65 and the pressing portion 67 So that the fitting ring 63 is not separated from the seating groove 65 by an accidental external force,

The pressing portion 67 presses the fitting ring 63 so that the fitting ring 63 is brought into close contact with the inner surface of the seating groove 65 to prevent water or dust from penetrating through the gap therebetween.

The sealing pad 50 and the branching part 61 and the fitting ring 63 are made of a flexible material having elasticity so that the operator pulls the inside of the sealing pad 50 so that the branching part 61 contacts the opening / It is possible to easily engage the fitting ring 63 between the pressing portion 67 and the seating groove 65 to easily engage the fitting ring 63 in a forced fit manner, The sealing pad 50 can be easily replaced.

The disposing means 70 allows the opening / closing plate 30 to be separated and recombined in the duct 21 in order to replace the sealing pad 50. That is, it is detachable.

The hinge pin 31 and the motor shaft pin 33 are provided on both sides of the opposed positions of the opening and closing plate 30 so that the opening and closing plate 30 can be rotated inside the duct 21 by the motor 40 .

The hinge pin 31 is hingably coupled to the inner surface of the duct 21 so as to freely rotate. The motor shaft pin 33 passes through the inner surface of the duct 21 and is formed on the motor shaft. And rotates the opening / closing plate 30.

The detachment means (70)

A hinge pin 71 protruding from the inner periphery of the hinge pin 31 hinged to the duct 21,

A fitting groove (72) provided in the opening / closing plate (30) so that the hinge pin (31)

An engagement groove (73) formed to be connected to the fitting groove (72) so that the engagement wing (71) can be inserted and extracted,

A spring (74) embedded in the fitting groove (72) and elastically supporting the hinge pin (31)

A latching nose 75 protruding from the surface of the latching blade 71,

And a latching protrusion 76 protruding from an inner wall of the opening of the latching groove 73 to receive the latching nose 75.

The latching vane 71 is engaged with the latching groove 73 so that the hinge pin 31 rotates when the opening / closing plate 30 rotates.

The latching nose 75 is caught by the latching jaw 76 so that the hinge pin 31 inserted into the fitting groove 72 is not separated from the fitting groove 72. The latching nose 75 and the latching jaw 76 have an inclined structure so that the latching vane 71 can be inserted into the latching groove 73 in an interference fit manner but not easily removed after the insertion.

The spring 74 resiliently supports the hinge pin 31 from the inside so that the hinge pin 31 is pulled out in a state in which no external force is applied.

The operator may press the hinge pin 31 to push the hinge pin 31 inside the opening and closing plate 30 and connect the opening and closing plate 30 to the duct 21 when the opening and closing plate 30 is coupled to the duct 21. [ When the motor shaft pin 33 is first formed on the motor shaft and then the hinge pin 31 is fitted into the fitting groove 72, (74) and inserted into the fitting groove (72)

When separating the opening / closing plate 30 from the duct 21, the operator removes the hinge pin 31 from the fitting groove 72 by pressing the hinge pin 31, pulls the opening / closing plate 30, After the shaft pin 33 is separated from the motor shaft, the opening and closing board 30 is separated from the duct 21 or the operator pulls the opening and closing board 30 to separate the motor shaft pin 33 from the motor shaft first The hinge pin 31 may be pushed into the fitting groove 72 by pressing the hinge pin 31 and then the opening and closing plate 30 may be separated from the duct 21.

Also, the motor shaft pin 33 may be pulled out as if the hinge pin 31 is pulled out through the attaching / detaching means 70 as described above.

The present invention is equipped with the replacing means 60 and the attaching / detaching means 70 as described above, so that when the sealing pad 50 is worn and damaged or deformed by long-term use, only the sealing pad 50 is simply replaced, Maintenance costs can be reduced.

The duct 21, the opening and closing plate 30, the sealing pad 50, the replacing means 60, and the attaching / detaching means 70 included in the exhaust fan unit 20 may be provided in the intake fan unit.

The housing (10) is provided with a locking means (130) for locking the door (11) so that a third party can not arbitrarily contact the door (11).

Various types of locking means may be used as the locking means, but in the present invention, an electronically controlled digital door lock 131 is used for convenience of use.

The locking means 130 includes a digital door lock 131 and an electromagnet 132 interlocked with the digital door lock 131 and installed at one side of the front opening of the housing 10, And an attachment member 133 that is attached by the magnetic force of the electromagnet 132.

When the digital door lock 131 is locked, the electromagnet 132 is supplied with power and generates magnetic force on the first magnetic surface 132a, and the attachment member 133 is made of a metal material capable of being attached by magnetism , The door 11 is kept in close contact with the front opening of the receiving portion 10S through the magnetism while the door 11 is closed.

When the lock of the digital door lock 131 is released, the electric power supplied to the electromagnet 132 is cut off, so that the electromagnet 132 and the attachment member 133 are released from each other and the door 11 can be opened .

Although the electromagnet 132 and the attaching member 133 are shown only on the upper side of the rim of the front opening of the housing and the door 11, It is preferable that the sealing member is provided over the whole area of the door 11, and even if the packing member of the rubber material is provided on the inner side edge of the door 11, the locking through the magnetic force is not interfered.

At this time, when the door 11 is tightly sealed for a long time, the door 11 may not be opened due to a pressure difference between the inside and the outside of the housing 10.

Accordingly, the present invention introduces automatic opening means 140 for automatically opening the door 11 by pressing the inner surface of the door 11 after unlocking the locking means 130.

As shown in Figure 4, the automatic opening means 140

A mounting member 141 which is coupled to an inner surface of one side edge of the front opening of the housing 10 and has a sliding portion 141A in the forward and backward directions,

An opening member 142 disposed on the sliding portion 141A and elastically supported forward,

An upper protrusion 144a is hinged to the inner surface of the door 11 so that the upper protrusion 144a is attached to the second magnetic surface 132b of the electromagnet 132 and the front end of the opening member 142 is in contact with the opening member 142 And a restricting member 144 for restricting withdrawal of the retaining member 144,

When the electric power of the electromagnet 132 is cut off due to the unlocking of the digital door lock 131, the restricting member 144 rotates downward and the opening member 142 is automatically drawn out, So that the door 11 is automatically opened.

The mounting member 141 is provided with a receiving portion 141B which is bent upward at the rear end of the sliding portion 141A and a locking portion 142a protruding outward from the middle portion of the opening member 142, The opening member 142 is elastically supported toward the front opening side of the housing 10, that is, the inner side face of the door 11, due to the elastic body 143 disposed between the receiving portion 141B and the engaging portion 142a.

When power is supplied to the electromagnet 132 by the locking operation of the digital door lock 131, magnetic force is generated in the second magnetic surface 132b, so that the upper protrusion 144a of the restricting member 144 contacts the second magnetic surface 132. [ The restricting member 144 blocks the withdrawal path of the opening member 142 so that the opening member 142 that is in contact with the restricting member 144 is in a state of being retracted in the retracted state in the contracted state of the elastic member 143 .

The elastic member 143 exerts an elastic force in a direction opposite to the compression direction, and is compressed in the standby state for withdrawing the opening member 142.

When the supply of power to the electromagnet 132 is interrupted due to the unlocking of the digital door lock 131, the fixing of the upper protrusion 144a and the second magnetic surface 132b is released, do.

The upper projection 1 144a and the opening member 142 are released from contact with each other as the restricting member 144 rotates downward and the opening member 142 is pulled out by the elastic force of the elastic body 143, The side surface is pressurized to release the compressed sealing state of the door 11 so that the door 11 is opened.

If the rotation of the restraint member 144 using the electromagnet 132 and the withdrawal of the opening member 142 through the electromagnet 132 are utilized, the automatic opening function of the door 11 can be realized.

A pair of stoppers 141a protruding from the upper surface of the sliding portion 141A are further provided to guide the sliding movement of the opening member 142 when the opening member 142 is pulled out, 142a contact the stopper 141a to limit the drawing-out distance of the opening member 142. [

Although not shown in the figure, the restricting member 144 is rotatably operated by a motor (not shown) operating in conjunction with the digital door lock 131, so that when the digital door lock 131 is unlocked, Can be formed to be downwardly pivotable,

A link member (not shown) that presses the opening member 142 backward during the upward rotation of the restricting member 144 is provided so as to connect the front end of the opening member 142 to the upper projecting portion 144a, When the locking operation is effected, the restricting member 144 returns to the original position and is pulled to the original position and then attached to the second magnetic surface 132b through which the magnetic force flows, Can be implemented.

In the description of the present invention, it will be explained with reference to the accompanying drawings that a power line communication having a specific shape and structure is possible, and a safety and facility management apparatus using a gateway equipped with an environmental sensor group and a Wi-Fi module 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.

1: Wi-Fi module 3: PLC module
5: Power cable
10: Enclosure 11: Inlet
20: exhaust fan unit 21: duct
23: exhaust fan 30: open / close plate
40: motor 50: sealing pad
60: Replacement means 61:
63: insertion ring 65: seat groove
67: pressure applying unit 70:
71: engaging blade 72: fitting groove
73: engagement groove 74: spring
75: latching nose 76: latching jaw
100: Control center
200: remote control panel 210:
220 (C): Controller 230: PLC modem
H: Temperature sensor T: Temperature sensor

Claims

A plurality of environmental sensors installed in various places of a construction site to detect the concentration of components of ambient air;
A plurality of Wi-Fi modules installed in various places of a construction site to communicate with surrounding wireless terminals;
A power cable for supplying electric power to the environmental sensor group and the Wi-Fi module;
A PLC module for supporting detection of data of the environment sensor group and wireless communication data of the Wi-Fi module to power line communication through the power cable;

A PLC modem supporting power line communication with the PLC module via the power cable,
A controller for monitoring and controlling the environmental sensor group and the Wi-Fi module through the PLC modem;
A data communication unit communicating with the control center to transmit detection data of the environmental sensor group collected in the controller and wireless communication data of the Wi-Fi module to the control center, and transmitting a command signal transmitted by the control center to the controller; ,
The enclosure housing the PLC modem, the controller, and the data communication unit
And a remote control panel including a remote control panel including a Wi-Fi module, and is capable of power line communication including an environmental sensor group and a Wi-Fi module,

Digital door locks,
An electromagnet operatively associated with the digital door lock,
And an attachment member attached by the magnetic force of the electromagnet,
Locking means for locking or unlocking the door of the housing;

A mounting member coupled to an inner side surface of one side edge of the front opening of the housing and having a sliding portion in the front-
An opening member disposed in the sliding portion and elastically supported forward;
And a restraining member hinged to an inner surface of the door so that an upper protrusion is attached to the second magnetic surface of the electromagnet and a front end of the opening member is brought into contact to restrain the withdrawal of the opening member,
And an automatic opening means for automatically opening the door by pressing the inner side surface of the door after unlocking the locking means
Safety and facility management system for construction site using power line communication and gateway equipped with environmental sensor group and Wi-Fi module.

The method according to claim 1,
Wherein the mounting member is provided with a receiving portion that is bent upward at a rear end of the sliding portion,
Wherein a stopper portion protruding outwardly is provided at a middle portion of the opening member,
And the opening member is resiliently supported toward the inner side surface of the door by the elastic body disposed between the receiving portion and the engaging portion.
Safety and facility management system for construction site using power line communication and gateway equipped with environmental sensor group and Wi-Fi module.