KR20120074719A - Indoor worksite management method and system and radio receiver - Google Patents

Abstract

PURPOSE: An indoor workshop management method, system, and wireless reception apparatus therefor are provided to construct a network by using a first priority buried power line in everywhere. CONSTITUTION: A system starts location tracing and moving path calculation for each worker(S101). The system calculates the people number of the workers(S102). The system senses the occurrence of a moving path or the location of a worker who charges an abnormal work in an indoor workshop(S103). When an abnormal work signal is generated, the system applies inputted work type weighted values(S104). In case an abnormal work state time is over the established time, the system determines the abnormal work state for the worker(S105,S106).

Description

Method and system for indoor workplace management and wireless receiver device used in the same place {INDOOR WORKSITE MANAGEMENT METHOD AND SYSTEM AND RADIO RECEIVER}

The present invention relates to a workplace management technology, and more particularly, to an indoor workplace management method and system capable of effectively performing location tracking and accident prevention in an indoor workplace, and to a wireless receiving device used therein.

Recently, various methods of tracking the location and movement path of an object as well as authentication by attaching a tag to an object have been used. It aims to improve the efficiency of management and management by tracking the flow of inventory management and logistics. In particular, the tag attached to the object to be transferred is very widely used because the recognition and location tracking is performed in real time while performing wireless communication between the mobile node and the fixed node without a separate action for recognition.

On the other hand, wireless recognition technology is widely utilized as a person's ID card in the form of RFID tag. For example, it is applied to employee cards, tenant cards, and train passes in the form of cards or tags. These ID cards are mainly used for access authentication or usage rights, and have many advantages that conventional magnetic cards do not have.

As described above, the wireless recognition technology is expected to be further expanded due to its fast recognition speed and user convenience.

The existing technologies used for authentication tag are mainly installed at the entrance of gate or control area, and are applied only to authentication of access. For example, after an employee or operator has been authenticated and passed through the doorway, no further follow-up management takes place. Therefore, wireless recognition technology needs to be introduced for accurate cost calculation and efficient process management. By carrying a wireless recognition unit to the worker can be identified as well as identification of each working state of the worker for access. This allows for very accurate labor costs for some types of work. This is especially the case in workplaces where a large number of manpower is required, such as construction sites, shipyards and coal mines, but the external workforce of the contractor is required by work area or type.

However, the radio recognition technology applied to the above-mentioned workplaces also requires special systems and methods under some conditions. For example, when a workplace is an indoor environment such as a building, a subway site, a ship under construction, a coal mine, etc., location tracking using existing general recognition technology is not easy. This is particularly difficult because the system is difficult to build on new or newly built sites.

The present invention provides a workplace management method and system suitable for an indoor environment.

The present invention provides a method and system for indoor workplace management that can be deployed at a relatively low cost and relatively less affected by field conditions.

The present invention provides a workplace management method and system that can grasp the number of employees and the working state of the indoor worker.

The present invention provides an indoor workplace management method and system that operates to prevent accidents and to respond quickly and accurately to accidents that occur.

The present invention provides a wireless receiving apparatus that can be applied to the improved indoor workplace management method and system described above.

The present invention provides a method for managing an indoor workplace, the method comprising: determining the location of a worker carrying a wireless recognition unit recognized in at least one wireless receiving device installed indoors to derive information about the worker location and the movement route; step; And deriving information necessary for workplace management including the number of workers in the indoor workplace using the derived information on the location and the movement route of the worker.

In this case, the information necessary for the management of the workplace includes a determination of each worker working state.

The worker working state may include a departure from work, carrying a recognition unit proxy, and only work.

The determination of the working state may include: departure from a working place when a location in the indoor workplace is not determined for a first predetermined time or more; Recognizing unit proxy when two or more radio recognition unit is the same movement path for more than a second predetermined time; If there is no movement of the wireless recognition unit for more than a third predetermined time, it may be determined that the work is negligent;

The determination of the working state may determine the working position and the first to third predetermined time according to a predetermined work type of each worker.

Preferably, the radio receiver is networked via a power line communication network.

The present invention provides an indoor workplace management system, comprising: a wireless recognition unit carried by an operator; At least one wireless receiving device arranged to cover the indoor workplace and receiving a radio signal from a radio recognition unit of the worker; And a system control unit which receives the radio signal from the radio recognition unit of the worker received by the radio reception device and generates the information necessary for the management of the indoor workplace by using the information transmitted along with the radio signal. The wireless receiving device is networked with the system control unit via a power line communication network.

The generation of the information necessary for the management of the indoor workplace includes calculating a position and a movement path of each wireless recognition unit and determining a work situation according to the calculated position and the movement path.

The system further includes a control unit, wherein the system control unit controls the indoor workplace including information on the management of the indoor workplace including the location and the movement path of each wireless recognition unit with the information on the map and the operator of the indoor workplace in advance It may be negatively displayable.

The determination of the working situation is: when the location of the wireless recognition unit for a first predetermined time or more is not determined within the indoor workplace departure from work; Representation unit for carrying the two or more radio recognition unit corresponding to the same movement path for more than a second predetermined time; And it may include only the work status corresponding to the case where there is no movement of the wireless recognition unit for a third predetermined time or more.

The wireless receiving device includes at least one selected from the group of sensors consisting of a fire sensor, a heat sensor, a gas sensor, and an oxygen concentration sensor.

The wireless receiving apparatus further includes an alarm unit, when a detection signal of a predetermined value or more of a corresponding sensor of the sensor group is generated, generates a predetermined alarm signal through the alarm unit, and transmits the detection signal to the system controller and the wireless recognition unit. send.

The system controller transmits a signal relating to the fact that the detection signal is generated to a wireless receiving device other than the radio receiving device which has transmitted the detection signal, and the wireless reception device receiving the signal relating to the fact that the detection signal is generated corresponds to An alarm signal may be generated and an alarm signal may be transmitted to the wireless recognition unit.

The present invention provides a wireless receiving apparatus, comprising: a modem unit for a power line communication network; A wireless communication unit capable of wireless communication with a wireless recognition unit; A sensor unit including at least one sensor selected from a group consisting of a fire sensor, a heat sensor, a gas sensor, and an oxygen concentration sensor; And a control unit, and performs a predetermined sensing operation for a predetermined wireless recognition unit and a wireless communication unit and the sensor unit, and performs an external transmission / reception radio signal through the modem unit for the power line communication network.

The wireless receiving apparatus further includes an alarm unit, and performs an alarm operation when a detection signal is generated in the sensor unit and when a corresponding control signal is received from the outside.

The present invention provides a management system and method suitable for an indoor workplace. These management systems include time and attendance and safety management. In particular, by constructing a network by using the power line which is disposed at the highest priority in any site, it is possible to construct a system at low cost without particular limitation. The use of the system of the present invention provides excellent effects on suppression and rescue as well as detection of accidents or emergencies. The location and movement route of each worker as well as the source of the accident can be identified, so it can be very useful for closed indoor workplaces such as construction sites, subway sites, coal mines, shipbuilding workshops and steel mills. In addition, since the present invention can accurately grasp the working status for each worker and apply to the cost settlement, significant cost savings can be obtained and, as a result, planned process progress can be achieved.

1 is a view schematically showing an example of a configuration in which the indoor workplace management system according to a preferred embodiment of the present invention is applied to a building.
2 is a diagram schematically showing an example of a configuration in which an indoor workplace management system according to a preferred embodiment of the present invention is applied to a ship.
3 is a view schematically showing an indoor workplace management system according to a preferred embodiment of the present invention.
4 is a block diagram of a wireless receiving apparatus according to a preferred embodiment of the present invention.
5 is a block diagram of a wireless recognition unit employed in the indoor workplace management system according to a preferred embodiment of the present invention.
6 is a view showing the flow of the alarm operation when an accident occurs in the indoor workplace management system according to a preferred embodiment of the present invention.
7 is a flowchart showing the operation of the indoor workplace management system according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Briefly described first, the present invention relates to workplace management suitable for indoor environments. The indoor environment to which the present invention can be applied encompasses construction sites, ships, subway construction sites, coal mines, steelworks, dam construction sites, and the like. However, it should be noted that the system and method of the present invention are not limited to these, and that any work environment that can use a power line communication network can be effectively applied. The present invention particularly utilizes power line communication (PLC), which offers various advantages for recognition and location tracking in indoor environments. In the example above, it is not easy to install a separate data cable other than the power line in a new or building vessel such as indoor environments. Nevertheless, this indoor work environment requires more work than any other environment for work management and accident prevention. In closed conditions, small, large accidents such as fire, gas leaks, and investments frequently occur, and once an accident occurs in such an enclosed room, it is likely to lead to fatal catastrophic accidents. Therefore, the present invention is to build a management system using a power line that is first disposed in an indoor environment where such a system is not easy to build. In any workplace, the power lines are necessarily arranged first and foremost, so the concept of the present invention can be very usefully applied. Workplace management in the present invention includes the detection and alarm for grasping the working situation including the worker working state and the prevention of accidents.

1 and 2 is a diagram showing an example in which the system according to a preferred embodiment of the present invention is applied to an indoor workplace, Figure 1 shows an example applied to the building, Figure 2 shows an example applied to the vessel. 3 is a view schematically showing the configuration of the indoor workplace management system of the present invention.

Referring to the drawings, the indoor workplace management system according to a preferred embodiment of the present invention includes a wireless recognition unit 10, a wireless receiving device 20, and the system control unit 30. The wireless receiver 20 is connected to a power line communication (PLC) and is appropriately arranged to cover the entire indoor space.

Each wireless receiving device 20 performs wireless communication with the wireless recognition unit 10 within a communication range to receive information including ID information from the wireless recognition unit 10 and transmit the information to the system controller 30. The system control unit 30 calculates the position of the worker, the movement path, and the number of working persons by using the received information, and also determines the working situation of each worker.

First, the radio receiver 20 used in the preferred embodiment of the present invention will be described in detail with reference to the drawings. 4 is a block diagram showing a wireless receiving apparatus according to a preferred embodiment of the present invention.

The wireless receiver 20 includes a PLC modem unit 220, a wireless communication unit 230, a sensor unit 250, a control unit 210, a wired / wireless interface 240, an alarm unit 270, and a memory 260. . The wireless receiving device 20 may also include elements such as a user interface, a display, and the like, although not shown.

The PLC modem unit 220 is a modem for a power line communication network, and configures a network through a power line line. The connection to the power line will generally be connected through an outlet. The power line communication network, in particular, gives the advantage that can be used as the power line wired for the construction progress, such as new buildings, ships under construction, subway construction sites, coal mines, steel mills and the like.

The radio communication unit 230 is an element that performs radio frequency communication with the radio recognition unit 10, and serves as a fixed node. The wireless communication unit 230 basically receives information including ID information while receiving a wireless signal from the wireless recognition unit 10. This is an RFID recognition technology, the technology that can be applied to the present invention, such as RFID, Zigbee, CSS (Chip Spread Spectrum), IR-UWB (Impulse Radio Ultra-Wideband) such as communication methods that can be tracked through contactless recognition for example Can be mentioned. These applicable contactless recognition techniques preferably communicate with the radio recognition unit 10 periodically. For example, the wireless communication unit 230 and the wireless recognition unit 10 transmits and receives a wireless signal in units of minutes or seconds. For example, when the wireless communication unit 230 periodically transmits a wake-up signal of a low frequency, the wireless recognition unit 10 receiving the activated signal is activated to transmit information including the ID information to the wireless communication unit 230 in a wireless signal. do. Alternatively, the radio recognition unit 10 may periodically activate itself to transmit a radio signal including information including ID information. Providing the so-called wake-up mode and sleep mode as described above is related to battery consumption of the two-node wireless recognition unit 10. In addition, the wireless communication unit 230 may include a recognition module or may include a recognition module as an element of the wireless receiving device 20. Alternatively, the operation related to the recognition may be performed by the system controller 30 to be described later.

The sensor unit 250 is a sensor group that detects various accidents that may occur in an indoor workplace. For example, it may include a fire detection sensor 251, heat detection sensor 254, gas leak detection sensor 252, oxygen concentration detection sensor 253. In addition to the examples presented here, the sensor group may additionally include other sensors required for the field situation.

The alarm unit 270 is an element that performs an alarm by sound, sound, lighting, etc. when the detection signal of the sensor unit 250 is generated. The alarm unit 270 may also perform an alarm operation under the control of the control unit 210 in response to the alarm signal received from the system control unit 30, in addition to the detection signal generation of the sensor unit 250. . As such, when the detection signal is generated in the sensor unit 250 from the alarm unit 270 and when the alarm signal is received from the system control unit 30, the alarm operation needs to be distinguished from each other. As the source of the detection of accidents, the alarm signal is distinguished from other alarm signals so that the operator or rescue team can easily recognize the location of the accident.

The controller 210 controls the overall operation of the wireless receiving device 20. For example, wireless communication of the wireless communication unit 230 and the wireless recognition unit 10, communication between the PLC modem unit 220 and the system control unit 30, and determination of detection signals of the sensors of the sensor unit 250 may be performed. Can be. Algorithms for these overall control operations may be made through a program stored in the memory 260. In addition, the memory 260 stores ID information of the radio receiver 20 and provides the radio signal transmitted to the system controller 30. In addition, the controller 210 may perform an authentication operation when the wireless receiving device 20 includes a recognition module.

The wired / wireless interface 240 is a connection for wired or wireless sharing, and another device may be connected to the network through the wired / wireless interface 240.

The wireless receiving device 20 may be appropriately disposed to cover the interior of the indoor workplace as shown in Figs. Preferably, as shown in the examples of FIGS. 1 and 2, at least one radio receiver 20 may be disposed in an area of each chamber. Although the arrangement of the radio receiver 20 can be suitably arranged in the field situation, if the operator wants to perform the movement path more precisely, one radio recognition unit 10 is arranged more densely. It is desirable to be able to communicate with more than one wireless receiving device 20.

5 is a block diagram showing an example of a radio recognition unit 10 employed in the preferred embodiment of the present invention. The wireless recognition unit 10 basically includes a control unit 110, a wireless communication module 120, a memory 130, a sensor unit 140, and a power supply unit 150. The wireless recognition unit 10 may further include a user interface 160, a display unit 170, an alarm unit 180, an emergency call button 190, and the like.

The wireless communication module 120 is an element necessary for the wireless recognition unit 10 to perform wireless communication with the wireless receiving device 20.

The memory 130 stores ID information of a worker (mobile).

The sensor unit 140 includes various sensing sensors such as, for example, an acceleration sensor, and in the case of the acceleration sensor, may be used to detect a fall of an operator.

The radio recognition unit 10 serves as a mobile node, and transmits and receives a radio signal through radio communication with the radio receiver 20 fixedly disposed in the workplace under the control of the controller 110.

When the wakeup signal is received from the radio receiver 20 and is activated, an element for detecting the wakeup signal is included. In addition, when activated according to a predetermined period, the wakeup operation may be performed under the control of the controller 110 including a clock. In any case, after being activated, information including ID information is actively transmitted as a radio signal. Here, the information received by the radio receiving apparatus 20 includes the ID information of the radio recognition unit 10 as described above for wake-up and identification received by the radio recognition unit 10 from the radio reception apparatus 20. May contain information.

The system controller 30 periodically tracks the position of the wireless recognition unit 10 by using the information including the wireless signal and ID information received from the wireless recognition unit 10 through the wireless receiving device 20 and moves the movement path. Calculate Therefore, the system controller 30 may be provided to a host computer, and includes a central processing unit 310 and a database unit 320 that perform location tracking and drive applications related thereto. The database unit 320 may include a workplace map, information on workers, process plans, and progress results.

The control unit 40 is connected to the system control unit 30 to manage and control while the administrator monitors. The control unit 40 may be provided with a plurality of screens or a large screen, the PC 410 for operation is connected.

In addition, the system control unit 30 may be connected to the device for the search, such as kiosk 430 may provide a search of a specific worker or a location search in the workplace.

Hereinafter, the determination of the working situation and the working state performed by the system of the present invention by calculating the position tracking and the movement path of the wireless recognition unit 10 will be described. The worker's work situation can be divided into normal work and abnormal work.

Examples of an abnormal working state of the worker may include a departure from the workplace, the surrogate carrying of the recognition unit, the negligence of the worker outside the working position in the indoor workplace. As such, understanding the worker's working status will provide a basis for accurate labor management and cost accounting, and as a result will ensure smooth progress of the planned process. In particular, a lot of manpower is invested in workplaces such as construction sites and ship construction, and in the part of professional work, labor management is difficult because the process is divided by subcontractors or teams.

In the case of an indoor workplace, the departure from the workplace corresponds to a case where a worker wearing the wireless recognition unit 10 is not identified for a location more than a first predetermined time in the indoor workplace. After the worker wearing the wireless recognition unit 10 is registered as a working person, it corresponds to the case of leaving the work site without permission. The first predetermined time may be, for example, several minutes or several hours, and may be weighted according to the type of work assigned to each worker.

In the case of carrying a recognition unit on behalf of a person, this is a case of cheating in which one worker carries two or more recognition units. This may be detected when the movement path of the wireless recognition unit 10 is equal to or greater than the second predetermined time. The second predetermined time may be, for example, several minutes or several hours. Similarly, the second predetermined time may be weighted according to the work type assigned to each worker. For example, if the work type where two or more people need to work at close distances, the time can be increased in advance. In general, since work is assigned to each team at a workplace or a construction site, this may be reflected in a database in advance.

In the case of neglect of work occurs when the worker removes the wireless recognition unit 10 from the body and leave the working place or there is no movement for more than several hours to rest excessively, such as sleep. In this case, for example, when there is no movement of the wireless recognition unit 10 for more than a third predetermined time of several minutes or several hours, it may be determined as a work failure. At this time, the weight can be given in advance according to the type of work assigned to the worker.

In addition, when the acceleration sensor is employed in the sensor unit of the wireless recognition unit 10, it can be detected when the operator removes the wireless recognition unit 10 from the body and the information transmitted to the wireless receiving device 20 for this You can include information. For example, when the wireless recognition unit 10 is removed from the body to detect that vibration is not detected and the detection signal is transmitted, the system control unit 30 receives this via the wireless receiving device 20 to include an elapsed time. Record it. Checking the elapsed time, of course, may be made in the wireless recognition unit 10 itself. In any case, independent of the tracking of the movement route, the non-wearing of the wireless recognition unit of each worker can be detected and recorded and directly reflected on time and attendance or used as a comparison and confirmation data.

For example, if the default is ST (Setting Out Time), SA (Setting OutZone AP), X (Coordinate Row), Y (Coordinate Column), OX (Max Row), OY (Max Column), Heavy workplace departures may include the following conditions: It can be included as a workplace departure when X <0 or Y <0 during ST, when ST pattern OX <X or OY <Y, and when SA disappears during ST and is not recognized by another AP. In case of surrogate recognition unit, ST (Setting Out Time), X (coordinate row), Y (coordinate column), SD (Setting distance), SD> absolute value (X-X ') SD> absolute value ( Y-Y ') and above ST can be regarded as surrogate.

If it is determined for each item of the above-mentioned abnormal working condition, the numerical value for the actual number of working persons may be reflected.

In addition, in the case of an indoor workplace, an emergency situation or an accident situation is likely to occur, and the present invention helps to detect such an accident situation and cope with it quickly. Accidents and emergencies that can occur in indoor workplaces vary, for example, fires, gas leaks, lack of oxygen, burial and explosions, and are fatal once an accident occurs.

The wireless receiving device 20 of the present invention installed in an indoor workplace includes a sensor unit 250 including sensors suitable for a site, and thus performs a sensing operation and an alarm operation.

For example, operation of the system of the present invention in an emergency situation will be described with reference to FIGS. 2 and 6. 6 is a view showing the flow of the alarm operation when an accident occurs in the indoor workplace management system according to a preferred embodiment of the present invention.

 When a fire occurs in the area indicated by "A" in Figure 2, the wireless receiving device 20A installed in the area detects it through the fire detection sensor 251 and immediately alarm operation (alarm signal 'S' generation) At the same time to transmit the fire detection signal to the system control unit 30 (step 201). The system controller 30 generates an alarm signal corresponding to the received detection signal and transmits an alarm signal 'N' to the other wireless receiving apparatuses 20 and the wireless recognition units 10 in the network (step 203). The other radio receiving apparatuses 20 and the radio recognition units 10 which have received this also perform an alarm operation (alarm signal N) (step 205). In this way, the alarm operation of the radio receiver 20A and the other radio receiver 20 that have detected a fire can be distinguished from each other, so that the surrounding workers can easily identify the correct source and help suppress or escape.

Such an accident will be displayed on the screen of the control unit 40 will be alarmed, it is possible to determine the exact source of the accident occurred in the control room and take action quickly. In particular, when the suppression or rescue operations are carried out, since the position of each worker in the control unit 40 can be accurately known, the suppression and rescue measures can be taken quickly and accurately. This effect is very important in indoor workplaces. When detecting accidents and alarms just like the existing technology, it is difficult to pinpoint workers' position, which makes perfect suppression and rescue difficult. This is because workers who lose their consciousness are exposed to toxic gas, which is almost essential due to the nature of the indoor workplace. The present invention can be accurately understood because the origin of the accident as well as the location of each worker as well as the movement path of the worker in such an accident situation or emergency situation is monitored and recorded, even if the worst case occurs, the position immediately before each worker The closest position can be estimated.

Wireless recognition unit 10 of the present invention may also be provided with a sensor unit 140 as shown in FIG. The sensor unit 140 includes an acceleration sensor, and when the operator falls, the acceleration sensor detects this, and the control unit 11 may generate a fall signal when the height is approximately 10 m or more. The system control unit 30 may receive the display and display the control room monitor and generate a predetermined signal at the same time. In addition, the wireless recognition unit 10 may also notify the surroundings by generating a sound through the alarm unit 180.

Hereinafter, the operation flow of the indoor workplace management system and method of the present invention will be briefly described with reference to FIGS. 1 to 7. 7 is a view showing the operation flow of the indoor workplace management system according to a preferred embodiment of the present invention.

First, as workers enter the indoor workplace illustrated in Figs. 1 and 2, location tracking and movement path calculation for each worker are started (step 101). The system controller 30 performs wireless communication with the wireless recognition unit 10 through the wireless receiving device 20 and periodically calculates a current position and a movement path of each worker using information including the received ID information. . Of course, by establishing a system for access or attendance at the doorway, the number of personnel and personal information will be checked first. Separately, however, the system of the present invention periodically calculates the number of people along with the location and movement path of the worker in the indoor workplace.

Next, in step 102, the number of workers in the indoor workplace is calculated. At this time, the number of people for the entire indoor workplace and the location tracking and personnel information for workers in each zone are identified.

Steps 101 and 102 above are performed periodically.

Subsequently, when a location or a movement path of a worker corresponding to abnormal work occurs in the indoor workplace, the controller detects this. In this step, it is preferable to regard the abnormal work preliminary signal generation rather than confirming the abnormal work. For example, it is necessary to leave the workplace for each type of work, and sometimes occurs when two or more people need to work in close proximity. In addition, an operator may leave the workplace for a while without malicious intention. When the abnormal work reserve signal is generated, a display corresponding to the reserve signal may be displayed on the monitor of the control unit 40.

When the abnormal work preliminary signal is generated, in step 104, the time elapses before the confirmation by applying the previously input weight for each work type.

Subsequently, it is determined whether the first to third predetermined time periods exceed the predetermined time according to the work type of the abnormal work in accordance with each movement route (step 105). If the abnormal working condition does not exceed the predetermined time, the process returns to step 101 again.

If the abnormal work condition continues for more than a predetermined time, as in step 106, the worker is determined to be in abnormal work condition and is reflected in the number of working persons.

The worker's movement path, abnormal working condition and time, and the number of working people according to the result can be backed up in the present invention and used as the basis of cost settlement.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

10: wireless recognition unit 20, 20A: wireless receiving device 30: system control unit
40: control unit 110, 210: control unit 120: wireless communication module
130, 260: memory 140, 250: sensor 160: user interface
170: display unit 180, 270: alarm unit 190: emergency call button
230: wireless communication unit 240: wired and wireless interface 251: fire detection sensor
252: gas sensor 253: oxygen concentration sensor 254: heat sensor
310: central processing unit 320: database 40: control unit 410: PC
430: kiosk

Claims (16)

As an indoor workplace management method:
Deriving information regarding a worker's location and a moving path by identifying a location of a worker carrying a wireless recognition unit recognized in at least one wireless receiving device installed indoors; And
Deriving information necessary for workplace management including the number of workers in the indoor workplace using the derived information on the location and the movement route of the worker;
How to manage your indoor workplace. The method according to claim 1,
Information necessary for the management of the workplace is to include a determination of each worker working state,
How to manage your indoor workplace. The method according to claim 2,
The worker working state is to include a workplace departure, recognition unit surrogate carrying, and work status,
How to manage your indoor workplace. The method of claim 3, wherein the determination of the working state is:
Departure from work if the location within the indoor workplace is not determined for more than a first predetermined time;
Recognizing unit proxy when two or more radio recognition unit is the same movement path for more than a second predetermined time;
Negligence when there is no movement of the radio recognition unit for more than a third predetermined time;
Judging by
How to manage your indoor workplace. The method of claim 4,
The determination of the working state is that the working position and the first to third predetermined time is determined according to a predetermined work type of each worker,
How to manage your indoor workplace. The method according to claim 1,
The wireless receiving device is a network configured through a power line communication network,
How to manage your indoor workplace. As an indoor workplace management system:
Wireless recognition unit carried by the worker;
At least one wireless receiving device arranged to cover the indoor workplace and receiving a radio signal from a radio recognition unit of the worker; And
And a system controller which receives the radio signal from the radio recognition unit of the worker received by the radio receiver and generates information necessary for the management of the indoor workplace by using the information transmitted along with the radio signal.
The wireless receiving device is network connected to the system control unit and a power line communication network,
Indoor workshop management system. The method of claim 7,
The generation of the information necessary for indoor workplace management includes calculating a position and a movement path of each wireless recognition unit and determining a work situation according to the calculated position and the movement path.
Indoor workshop management system. The method according to claim 8,
It further includes a control unit,
The system control unit is capable of displaying the information necessary for the management of the indoor workplace, including the location and the movement path of each of the radio recognition unit with the map of the indoor workplace and information on the operator in advance, the control unit,
Indoor workshop management system. The method according to claim 8,
Judgment of the above work situation is:
A departure from the working place when the location of the wireless recognition unit for the first predetermined time or more is not understood within the indoor workplace;
Representation unit for carrying the two or more radio recognition unit corresponding to the same movement path for more than a second predetermined time; And
It includes only the work status corresponding to the case where there is no movement of the wireless recognition unit for more than a third predetermined time,
Indoor workshop management system. The method of claim 7,
The wireless receiver includes at least one selected from a group of sensors consisting of a fire sensor, a heat sensor, a gas sensor, and an oxygen concentration sensor.
Indoor workshop management system. The method of claim 11,
The wireless receiving device further comprises an alarm unit,
Indoor workshop management system. The method of claim 12,
The wireless receiving device generates an alarm signal determined through the alarm unit when a detection signal of a predetermined value or more of a corresponding sensor of the sensor group included is generated.
To transmit the detection signal to the system control unit and the wireless recognition unit,
Indoor workshop management system. The method according to claim 13,
The system control unit transmits a signal relating to the fact that the detection signal is generated to a wireless receiving apparatus other than the wireless receiving apparatus which transmitted the sensing signal,
The wireless receiving apparatus receiving the signal related to the fact that the detection signal is generated generates a corresponding alarm signal and transmits the alarm signal to the wireless recognition unit,
Indoor workshop management system. A modem unit for a power line communication network;
A wireless communication unit capable of wireless communication with a wireless recognition unit;
A sensor unit including at least one sensor selected from a group consisting of a fire sensor, a heat sensor, a gas sensor, and an oxygen concentration sensor; And
A control unit;
To perform a predetermined detection operation of the wireless communication unit and the sensor unit for the predetermined wireless recognition unit and recognition, and to perform an external transmission and reception radio signal through the modem for the power line communication network,
Wireless receiver. The method according to claim 15,
It further includes an alarm unit,
When the detection signal generation of the sensor unit and when receiving the control signal from the outside to perform an alarm operation,
Wireless receiver.

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