JP2007052671A - Worker management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for managing workers on sites near hazardous areas that facilitates the position management of workers on a steel tower even from a ground or any other remote site. <P>SOLUTION: The worker management system comprises: IC tags; sensor devices having means for sensing the IC tags to acquire the distance thereto and means for data transmission/reception; and a management personal computer having means for data transmission/reception to/from the sensor devices. The IC tags and sensor devices are configured by a combination of either (1) one mobile IC tag and three or more fixed sensor devices or (2) three or more fixed IC tags and one mobile sensor device. The management personal computer acquires data on the three-dimensional layout of the fixed sensor devices or fixed IC tags, acquires distance data between the IC tag and the sensor device, and identifies the position of the mobile IC tag or mobile sensor device based on the data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a system for managing a worker's position so that a worker working near a dangerous area or an obstacle can work safely. More specifically, in the work on the high-voltage power transmission line tower, there is a case where only one of the two power lines is interrupted and the work is performed. The present invention relates to a system that prevents a person from accidentally entering a dangerous area on the live line side.

  In connection with power transmission work in the power supply business, workers may climb up to the high-voltage transmission line tower and work on it. In that case, the power transmission cannot be stopped completely, so the power transmission line (power line) of the two-line power transmission tower is left in the power transmission state (live line), and the power transmission of the circuit on the working side is performed. The work was carried out while taking care not to accidentally enter the dangerous area on the live line (charging) side. At that time, in order to clearly indicate the dangerous area on the live line side, it is traditional to use an insulating bar or sign with yellow and black (or red and white) stripes, It was attached to the outside of the main pillar on the side with a string or a fastener, thereby displaying the upper, lower, left and right sections of the dangerous area on the tower. In addition, there was a case where a supervisor was placed at the site and the work was being monitored.

Patent documents relating to the technical field of the present invention include, for example, Japanese Patent Laid-Open Nos. 5-344635, 6-70420, and 10-203799.
However, in the invention disclosed in Japanese Patent Application Laid-Open No. 5-344635 and Japanese Patent Application Laid-Open No. 6-70420, the worker on the tower must install the alarm device for the transmission line tower, and the work site is the tower. Since it is above, there is a case where it is not possible to confirm an appropriate mounting position or the like, and there is a possibility that a dangerous state from the ground cannot be grasped in the case of a tall tower or a poor visibility state.
Moreover, since the thing of Unexamined-Japanese-Patent No. 10-203799 will increase the weight of a helmet compared with the former, it will have a psychological influence and burden to an operator more than imagined, and high In the case of a long steel tower or a poor visibility, there is a possibility that the danger state from the ground cannot be grasped.
JP-A-5-344635, JP-A-6-70420 Japanese Patent Laid-Open No. 10-203799

  When the danger is indicated to the worker by the above-mentioned signs and warnings, or when monitoring is performed by a monitor, it is not a perfect countermeasure for the worker at the site close to the dangerous area. The present invention has been made in view of the problems of the prior art, and without using human measures, it is possible to obtain high accuracy, improve the quality of safety, reduce labor costs, The object is to provide a worker management system that can easily grasp the action history, use the obtained data, and easily manage the position of the worker on the tower even at a remote place such as the ground.

(1) an IC tag having data transmission / reception means;
A sensor device having a means for sensing the IC tag and obtaining the distance thereof, and a data transmitting / receiving means;
An operator management system comprising a management personal computer having data transmission / reception means with the sensor device,
The IC tag and the sensor device are (1) one mobile IC tag and three or more fixed sensor devices, and (2) three or more fixed IC tags and a mobile sensor device. Consists of any combination of
The mobile IC tag or mobile sensor device is carried by an operator and moved,
The fixed type sensor device or the fixed type IC tag is fixed at a predetermined position,
The management personal computer acquires three-dimensional arrangement data about the fixed sensor device or the fixed IC tag, acquires distance data between the IC tag and the sensor device, and based on these data, The worker management system is used to specify the position of the mobile IC tag or the mobile sensor device.

(2) In the worker management system of (1),
The position of the worker who moves with the mobile IC tag or the mobile sensor device is specified every time or every time the worker moves.
(3) In the worker management system of (1) or (2),
The worker is a person working near the danger area,
The fixed-type sensor device or the fixed-type IC tag is disposed at or near the entrance boundary to the dangerous area.

(4) In the worker management system of (3),
The worker is a worker who works on the side of the stopped line in the two-line transmission line tower,
The fixed sensor device or the fixed IC tag is attached to the charged line side of the transmission line tower.

The worker management system according to the present invention greatly improves the measurement accuracy and management method by using IC tags and IT equipment at work sites that have traditionally been centered on human countermeasures. Even so, it is possible to provide a management system that can accurately identify the position.
Conventionally, full-time supervisors and construction attendees have been arranged. However, in the present invention, such personnel are not required, the quality of work safety can be improved, and labor costs can be reduced.
In addition, various data can be acquired, stored, and transmitted / received, and the worker's behavior history can be grasped and displayed on the PC screen, contributing to the examination of factors in the event of a disaster, and studying work efficiency and work It is a system that can make full use of these data in improving the method.

  First, an outline of the worker management system according to the present invention will be described. When the worker management system according to the present invention is applied to work on a power transmission tower, an IC tag (one) capable of short-range wireless communication is carried by a worker who moves and works on the tower. Let In the work on the one-side stop line of the two-line transmission line tower, three danger zone marking devices with alarm functions have been installed in the upper phase / middle phase / lower phase of the electric wire. Sensor devices (three units) for sensing the IC tag and measuring the distance are attached to the danger zone marking device. Then, the IC tag held by the operator and each of these three sensor devices are communicated, and the distance data from the IC tag is measured and acquired by each sensor device, and these data are stored in the management personal computer. Send to. Then, since the management PC has already input and stored three-dimensional data (coordinate position data) including the positional relationship of the three sensor devices in the danger zone marking device, these data and the obtained distance data Based on the above, three-dimensional data (coordinate position data) of the position of the worker who is working on the steel tower can be obtained by calculation.

Thus, the management personal computer can calculate and specify the coordinate position where the worker carrying the IC tag is present in real time, and can display the current position on the steel tower where the worker is located on the screen. In addition, information on the movement of workers obtained in this way can be collected and stored, and these data can be analyzed to analyze the work, and the results can be used to improve the next work. You can save it.
In addition to the above, we have described a worker management system that combines a mobile IC tag (one piece) carried by a worker, three sensor devices fixed to a steel tower, and a management computer. A mobile sensor device (one unit) carried by an operator, an IC tag (three pieces) fixed to a steel tower, and a management personal computer can be combined to form a similar system.

Next, an embodiment of an operator management system according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is an explanatory diagram showing a configuration of an embodiment of an operator management system according to the present invention. The worker management system 100 here is used in a situation where the worker A is working on the power transmission tower 50, and the mobile IC tag 10 (one piece) possessed by the worker, the tower It consists of a combination of three sensor devices (21, 22, 23) fixed at a predetermined position on the top and a management personal computer 30 for transmitting and receiving data to and from them. In this system 100, the manager B who is on the ground manages while looking at the screen of the management personal computer 30, and the three-dimensional structure of the tower 50 and the data of the mounting positions of the three sensor devices (21, 22, 23) Based on the data of each distance from the IC tag 10 to the sensor device (21, 22, 23), the position where the worker A who works while moving on the steel tower is specified three-dimensionally. Manage.

  The work site where the worker management system 100 of FIG. 1 is used is on a steel tower 50, and this steel tower 50 is a steel tower for a two-line transmission line. This steel tower 50 includes an “upper phase member (L1) / middle phase member (L2) / lower phase member (L3)” for supporting the left line (first line) in FIG. “Upper phase member (R1) / Medium phase member (R2) / Lower phase member (R3)” for supporting the second line), and here the power line on the left side (first line) in FIG. A case will be described in which a (stop) line is used, and a line (second line) on the right side of FIG. In FIG. 1, the worker A who is working on the steel tower 50 is carrying or holding (carrying) the IC tag 10, and the center portion of the lower phase member (L3-C3-R3) of the steel tower 50. I am working in (C3).

  Three sensor devices (21, 22, 23) fixed on the steel tower 50 are connected to “upper phase member (R1) / middle phase member (R2) / lower phase member (R3)” of the charging (energization) line. Each is attached, and is disposed at a predetermined position at or near the boundary of an area (dangerous area) where the worker is not allowed to enter. These three fixed sensor devices (21, 22, 23) have sensor means for sensing the IC tag 10 possessed by the operator and obtaining distance data from the IC tag 10, and means for transmitting and receiving data. Then, the obtained three-point distance data is transmitted to the management personal computer 30 via the communication path 25 (radio wave).

  In the worker management system 100 of FIG. 1, the management personal computer 30 includes an antenna and a server for receiving worker movement information data obtained from each fixed sensor device (21, 22, 23) or the IC tag 10. , Manage the movement of workers. In this management personal computer 30, the structure data of the tower 50 and the coordinate positions of the three fixed sensor devices (21, 22, 23) are recorded in advance as a database, and the three fixed sensor devices are recorded. By acquiring the distance between (21, 22, 23) and the IC tag 10 (worker), it is possible to obtain information on where the worker has moved on the steel tower. When the worker moves to the hazardous area, the administrator B who is looking at the screen of the management computer 30 may give a warning directly to the worker via the route 15 using emergency sound or loud sound. it can.

These three fixed-type sensor devices (21, 22, 23) have a function of sensing a worker approaching and giving a warning sign or warning like a conventional approaching danger sign device or alarm device. It may be configured.
Further, the present invention is reconfigured to include sensor means for acquiring distance data with respect to the IC tag 10 and means for transmitting and receiving these data, using a conventionally used danger sign device and alarm device. It can also be set as a fixed sensor apparatus like invention.

FIG. 2 is a diagram illustrating a configuration example of each unit device in the embodiment of the worker management system of the present invention. The worker management system 200 includes a single mobile IC tag 60 attached to the worker, three fixed sensor devices 70, and one fixed management PC 80. Yes.
The IC tag used in the present invention is a non-contact type “IC (Integrated Circuit) tag”, and refers to a data carrier in which unique identification information can be read and written by wireless communication means including IC cards and wireless tags. . The IC tag 60 shown in FIG. 2 is an example of a configuration, but here, for example, the specification is such that data can be transmitted and received in the microwave band, and an antenna 61 and an IC chip 62 are mounted on a film-like substrate called an inlet. . As the antenna 61, a loop antenna, a dipole antenna or the like is used, and the IC chip 62 includes a reception circuit 65, a transmission circuit 66, a CPU (Central Processing Unit) 63, and a memory 64.

  The sensor device 70 (71, 72) includes an antenna 71, a transmission circuit 74, a reception circuit 73, a CPU 75, a memory 76, and a distance detection circuit 77. The sensor device 70 has a reader function of the IC tag 60, and receives a return radio wave transmitted from the sensor device 70 via the communication path 90 from the IC tag 60. The distance from the tag 60 can be calculated. These data are controlled by the CPU 75 and transmitted to the management personal computer 80 via the communication path 91.

  The management personal computer 80 of the worker management system 200 in FIG. 2 includes a microwave transmission / reception antenna 81 for data transmission / reception, a transmission / reception circuit 83, a database server 84 for managing a database 85, and a CPU (information for controlling them). A control unit) 82, an image display device 87 via an interface 87i, and a line 88 for connecting them. It is connected to the sensor device 70 (71, 72) via the transmission path 91 and can transmit and receive data and the like. The positional information data of the moving worker transmitted from the sensor device 70 (71, 72) is The data is stored in the server 86 via the antenna 81-transmission / reception circuit 83.

  In this worker management system 200, there are three fixed sensor devices 70, 71 and 72. Therefore, the data of the three-dimensional coordinate position including the steel tower structure of these three fixed sensor devices is preliminarily stored in a personal computer for management. It is necessary to record it in the database 85 of 80, and after that, by acquiring the respective distances between the IC tag 60 and the three fixed type sensor devices, it is the tertiary about how the worker moved on the tower. Original coordinate position information can be obtained. These pieces of information are obtained by analyzing the movement information of the worker at every predetermined time or every movement time, calculating the coordinate position of the worker holding the IC tag 60 in real time, and calculating the coordinate position of the worker on the display unit 87 of the management personal computer 80. Can be displayed on the screen.

Now, the operation flow will be described using the worker management system 100 of FIG.
In advance, three sensor devices (21, 22, 23) are installed in the tower 50 to be worked, and the IC tag 10 is attached to the worker A who works on the tower 50, and the management personal computer 30 is used. Is in a state where communication with the sensor device (21, 22, 23) is possible.
Here, the manager B calls the tower structure diagram of the tower 50 to be worked on the screen of the management personal computer 30 before starting the work. And the position of the attached sensor apparatus (21, 22, 23) is clearly shown in this steel tower structure figure, and it displays on a screen.

  When the worker's work is started, the three sensor devices (21, 22, 23) remain fixed at predetermined coordinate positions on the tower 50, but the worker A holding the IC tag 10 moves. Accordingly, a signal for searching for the position of the worker is transmitted from the management personal computer 30 to the three sensor devices (21, 22, 23) at every predetermined time or whenever the worker moves.

  On the other hand, the sensor devices (21, 22, 23) write at least an ID code in the memory circuit in advance, and when receiving a search signal, modulate it with the time and the ID code and transmit it as a response signal. When the sensor device (21, 22, 23) receives the response signal by the antenna, it communicates with the IC tag 10, calculates distance data from the sensor device (21, 22, 23) to the IC tag 10, Is transmitted to the personal computer 30 for management.

  In the management personal computer 10, the three-dimensional data of the structure of the steel tower, the three-dimensional position coordinate information data of the fixed sensor device (21, 22, 23), and the sensor device (21, 22, 23) stored in the database are stored. ) To the IC tag 10 are combined and analyzed, and three-dimensional arrangement data about the position where the worker A holding the IC tag 10 is obtained is obtained. When the three-dimensional coordinates indicating the position of the IC tag 10 are thus determined, a response transmission stop signal is sent to the ID code of the fixed sensor device (21, 22, 23).

  Such a work is repeated every predetermined time or every movement of the worker, and the management personal computer 10 carries the IC tag 10 via the fixed sensor device (21, 22, 23). The movement information of each member is collected, and each time, the ID code and the movement information data of the three-dimensional coordinate position are recorded in the database. In this way, the worker management system 100 of the present invention can collect movement information data for each predetermined time from the moving IC tag 10 and display the dynamic movement of the worker on the screen in real time. It is also possible to analyze the movement of workers based on the information data.

  As another embodiment according to the present invention, a conventionally used danger zone marking device with a sensor is used, and this data is transmitted to and received from the sensor means for acquiring distance data with the IC tag according to the present invention. It is possible to provide a deformation type sensor device that is reconfigured so as to include a means for performing the above. When this apparatus is used, the tower worker carries an IC tag and ascends to the steel tower, and the tower worker installs the deformable sensor device at a position that maintains a safe access distance. When the dangerous zone marking point is accidentally approached during the work, the dangerous zone marking with the sensing sensor of the deformable sensor device reacts, and the alarm device operates to notify the worker of the danger.

Another embodiment according to the present invention is as follows.
In the system 100 shown in FIG. 1, the IC tag and the sensor device have been described as a combination of one movable IC tag 10 and three fixed sensor devices (21 + 22 + 23). In the present invention, three distance data from three sensor devices (21 + 22 + 23) are used in order to obtain three-dimensional coordinate data, but another one installed on a steel tower closer to the ground. The sensor device 24 can be added to form a system with four sensor devices. Furthermore, the combination of the three sensor devices can be configured as “21 + 22 + 24”, “21 + 23 + 24” or the like using the sensor device 24 in addition to “21 + 22 + 23”.

It is explanatory drawing of the whole system structure concerning one Embodiment of the worker management system by this invention. It is a block diagram of each unit apparatus concerning one embodiment of the worker management system by the present invention.

Explanation of symbols

100, 200 Worker management system 10, 60 IC tag 21, 22, 23, 24, 70, 71, 72 Sensor device 30, 80 Management personal computer A Worker B Work manager

Claims (4)

An IC tag having data transmitting and receiving means;
A sensor device having a means for sensing the IC tag and obtaining the distance thereof, and a data transmitting / receiving means;
An operator management system comprising a management personal computer having data transmission / reception means with the sensor device,
The IC tag and the sensor device are (1) one mobile IC tag and three or more fixed sensor devices, and (2) three or more fixed IC tags and a mobile sensor device. Consists of any combination of
The mobile IC tag or mobile sensor device is carried by an operator and moved,
The fixed type sensor device or the fixed type IC tag is fixed at a predetermined position,
The management personal computer acquires three-dimensional arrangement data about the fixed sensor device or the fixed IC tag, acquires distance data between the IC tag and the sensor device, and based on these data, An operator management system characterized in that a position of a mobile IC tag or the mobile sensor device is specified. In the worker management system according to claim 1,
The worker management system characterized in that the position of the worker who moves with the movable IC tag or the movable sensor device is specified every time or every time the worker moves. . In the worker management system according to claim 1 or 2,
The worker is a person working near the danger area,
The worker management system, wherein the fixed type sensor device or the fixed type IC tag is disposed at or near an entrance boundary to the dangerous area. In the worker management system according to claim 3,
The worker is a worker who works on the side of the stopped line in the two-line transmission line tower,
The worker management system, wherein the fixed sensor device or the fixed IC tag is attached to a charged line side of the transmission line tower.

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