JPH06299799A - Monitoring system for site safety - Google Patents

Abstract

PURPOSE:To surely grasp circumstances in the whole construction site and to enable the management collectively. CONSTITUTION:Antennae 5 are installed at a plurality of positions in a construction site, an the antennae are connected to a host computer 1 through a communication cable 9. When a worker 19 passes under the antenna in the vicinity of a gate 15, information written in an ID tag 7 provided to a helmet for the worker is transmitted to the host computer through the antenna 5, the gate 15 is opened and, at the same time, the worker's name and time entered in the construction site are stored, and a column for the worker in a display panel 17 is turned on a light. When the worker passes under the antenna 5 installed in the vicinity of a construction machinery 21, information written in an ID tag for the worker is transmitted to the host computer 1, and in the case the worker is qualified to operate the construction machinery from the information, interlock with the construction machinery is released. In an underground tunnel 22, a plurality of antennae 5 are installed in succession, information written in the ID tag for the worker is transmitted to the host computer through the antennae 5 nearest to the worker 19, so that a position of the worker 19 can be grasped by the host computer 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a site safety system that can collectively manage construction sites such as human entry / exit management at construction sites, operation status management of heavy machinery / transport machines, and safety management between humans and machines. It concerns a surveillance system.

[0002]

2. Description of the Related Art People enter and leave a construction site and know where people are in the site, and
Managing the position and operating status of the carrier is very important for accident prevention and safety management measures.

[0003] Conventionally, at a construction site, a person turns the nameplate on the display panel by hand, or pushes a button switch to light the nameplate to display the entrance / exit status on the display panel.
It was managing the entrance and exit of humans. Alternatively, entrance / exit control was sometimes performed using a magnetic storage card. And
Management of workers, etc. often depended on contact from people.

[0004]

As described above, the conventional management of workers and the like at construction sites often depends on contact from people, and it has not been possible to reliably manage and grasp the entire site. . The present invention has been made in view of such a problem, and an object of the present invention is to provide a site safety monitoring system capable of surely grasping the situation of the entire site and performing collective management.

[0005]

In order to achieve the above-mentioned object, the present invention relates to a field safety monitoring system having a host computer and antennas connected to the host computer and installed at a plurality of points. And / or a mobile machine is provided with a non-contact type ID tag, and communication is performed between the ID tag and the host computer via the antenna, and is a site safety monitoring system.

[0006]

In the present invention, antennas are installed at a plurality of points, and communication is performed between a non-contact ID tag held by a human or a mobile machine and a host computer through the antennas, and the host computer executes Collectively manages humans or mobile machines.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic diagram of a contactless data carrier system used in the present invention. This contactless data carrier system comprises a host computer 1, a controller 3, an antenna 5 and an ID tag 7. Reference numeral 9 is a high-speed communication cable.

The controller 3 performs protocol conversion between the host computer 1 and the ID tag 7. Antenna 5
Transmits the radio wave to the ID tag 7. The ID tag 7 has an internal memory, and the internal memory (not shown) is read and written by radio waves. In such a non-contact type data carrier system, the host computer 1 reads the information in the memory of the ID tag 7 or writes the information in the memory while the host computer 1 and the ID tag 7 are in the non-contact state. . An ID code of a person or a carrier is written in the memory of the ID tag 7. Further, the qualification is written in the ID tag 7 of the worker who is qualified to work the heavy machine. next,
A first embodiment in which the present invention is applied to a shield construction site will be described. FIG. 2 is a schematic diagram of a shield construction site. The host computer 1 is installed in the management room 11. The host computer 1 is connected to antennas 5 installed at a plurality of places via a communication cable 9.

The underground entrance 13 is provided with a gate 15 and a display board 17. Reference numeral 21 is a construction machine (gate crane) that can be operated only by qualified personnel. Code 2
2 is an underground mine, 23 is a carrier, and 25 is a shield machine. A plurality of antennas 5 are continuously provided in the underground pit 22.

In this embodiment, the helmet of the worker 19 is provided with the ID tag 7, and the carrier 23 is also provided with the ID tag 7. Personal information such as name, company name, blood type, and qualification for operating a specific heavy machine is written in the ID tag 7 of each worker 19. Further, the ID tag 7 of the carrier 23 has a type of carrier,
Information such as numbers is written.

FIG. 3 is a diagram showing the hardware configuration of the on-site safety monitoring system used at this shield construction site. In the figure, A is a part for managing people who enter and exit near the underground entrance 13. Reference numeral 31 is a control panel, 35
Is a gate lock mechanism. The gate 15 is locked or unlocked by the gate mechanism 35 according to an instruction sent from the host computer 1.

B is a part for managing a specific work place.
C is a part that manages underground. Reference numeral 36 is a control panel, 3
Reference numeral 7 is an interface unit.

Next, the operation of this embodiment will be described with reference to the flow charts of FIGS. FIG. 4 shows the overall control flow. When the worker 19 or the carrier 23 is located near the antenna 5, the ID code is input to the host computer 1 via the antenna 5 (step 401).

The host computer 1 determines whether the input is from position detection (step 402). The input from the position detection means I from the antenna 5 in the underground pit 22.
This means that the D code is entered. If the input is from position detection, it is determined whether the ID code is a person (step 403). If the ID code does not belong to a person, the host computer 1 displays the carrier 23 on the display panel of the control room 11 because it is input from the carrier 23 (step 404).

That is, the entire display of the shield construction site is displayed on the display panel of the control room 11, and the position of the carrier 23 is displayed in the underground pit 22 in the display.

If the ID code is a person in step 403, the host computer 1 displays the name read from the ID tag 7 at the position where the person is detected on the display panel in the control room 11 (step 405). Step 4
Move to 04.

If the input is not from position detection in step 402, the host computer 1 determines whether the input is from the gate 15 (step 406). When the input is from the gate 15, the lock of the gate 15 is released (step 407). Then, the host computer 1 sends the signal from the gate 15 to the operator 19
Thus, it is determined whether or not the gate 15 is opened (step 408), and when the gate 15 is opened, it is determined whether or not the worker 19 has already entered (step 409).

In step 409, the worker 19
If no entry has been made, the host computer 1 writes the name and entry time of the worker in the memory of the host computer 1 (step 410). And gate 1
The name lamp of the person is lit on the display panel 17 near 5 (step 411), and the process proceeds to step 404.

In step 409, if the worker 19 is already present, the host computer 1
Judges that the worker 19 is leaving, writes the leaving time in the memory of the host computer 1 (step 412), and calculates the cumulative time (step 41).
3). Here, the cumulative time means that the worker 19 is in the underground mine 2
This is the total time spent in 2. Next, gate 15
Turn off the name lamp on the display panel 17 in the vicinity (Step 4
14) and shifts to step 404.

If the gate 15 is not opened in step 408, the host computer 1 determines whether or not a fixed time has passed (step 415). If the fixed time has passed, the process proceeds to step 404.

If the input from the gate 15 is not received in step 406, the host computer 1 outputs the I
It is determined whether it is a D code (step 416), and if it is an ID code of a qualified person, the interlock of the construction machine 21 is released (step 417).

The host computer 1 determines whether or not there is an input for performing the work on the construction machine 21 (step 418), and if there is an input on the construction machine 21, resets the timer (step 419). If there is no input to the construction machine 21, a timer is set (step 42
0), it is determined whether or not a fixed time has passed (step 42).
1) If a certain time has elapsed, the construction machine 21 is interlocked (step 422). The processing from step 418 to step 422 means that the construction machine 21 is interlocked when no input is input to the construction machine 21 to perform the work and a predetermined time has elapsed.

FIG. 5 is a flow chart showing in detail the person management in the mine, and FIG. 6 is a flow chart showing the interlock management of the construction machine 21 in detail. 5 and 6
The flowchart shown in (4) has a part overlapping with the flowchart shown in FIG.

First, the mine person management shown in FIG. 5 will be described.
The operator 1 is placed under the antenna 5 placed near the gate 15.
When 9 passes (step 501), the host computer 1 unlocks the gate 15 (step 50).
2). Then, the host computer 1 determines whether or not the gate 15 is opened based on the signal sent from the gate 15 (step 503). When a certain time has passed without opening the gate 15 (step 504), the gate 15 is locked (step 505).

When the gate 15 is opened in step 503, the name of the display panel 17 corresponding to the worker 19 is turned on (step 506), the name and the entry time are entered in the memory of the host computer 1 (step 507), and the gate is entered. 15 is closed (step 508).

When the worker 19 enters the underground pit 22 (step 509) and passes near the plurality of antennas 5 provided in the underground pit 22 (step 510), the host computer 1 determines that the worker 19 is present. Position the control room 1
No. 1 display board is displayed (step 511).

The worker 19 leaves the gate 15 again because he leaves.
When passing the antenna 5 near (step 512),
The host computer 1 unlocks the gate 5 by the signal sent from the antenna 5 (step 51).
3).

The host computer 1 determines whether or not the gate 15 is opened (step 514), and when a certain time has passed without opening the gate 15 (step 515), the gate 15 is locked (step 516).

When the gate 15 is opened in step 514, the name on the display panel 17 is turned off (step 51
7) The host computer 1 writes the exit time in the memory (step 518), calculates the total time of the worker (step 519), and closes the gate 15 (step 520).

Next, the interlock management of the construction machine 21 will be described with reference to FIG. When the worker passes the antenna 5 near the operation panel of the construction machine 21 (step 60
1), the ID code of the worker is the host computer 1
The host computer 1 determines whether the person having this ID code is qualified to operate the construction machine 21 (step 602). If not qualified, the process ends. If the person is qualified, the host computer 1 releases the interlock of the construction machine 21 (step 603). The work of the construction machine 21 is started (step 604), and after that, the work is stopped (step 605), and after a certain time has passed (step 60).
6), the host computer 1 sounds a buzzer installed near the construction machine 21 (step 607). After a few seconds have passed (step 608), the construction machine 21 is interlocked (step 609). In this way, unqualified operation of the construction machine 21 can be eliminated.

In the underground pit 22, when the worker 19 and a moving body such as the carrier 23 approach each other, an alarm can be generated to improve safety. As described above, in the present embodiment, (1) management of information related to construction work, (2) management of worker appearance (dezura), (3) grasp of on-site attendee status including visitors and visitors , (4) grasping the position of the mobile machine, (5) preventing unqualified operation, (6) preventing collision accidents by monitoring the mutual distance between a human and a moving body.

In other words, the safety is improved by identifying and managing the persons involved in the construction, the unqualified operation of the specific work machine can be prevented, and the operating status of the transfer machine can be grasped in real time. You can drive like a car. Further, the safety can be improved by monitoring the distance between a person and a moving body such as a carrier.

Next, a second embodiment of the present invention will be described. FIG. 7 shows an example in which the on-site safety monitoring system according to the present invention is introduced at a marine construction site. 1 in FIG.
a, 1b are host computers, 5a, 5b, 5c, 5
d is an antenna, 9 is a high-speed communication cable, 11a, 11b
Is a management room, 70 is a land side, 71 is an artificial island, 73a, 73b
Is a gate, and 75 is a transportation ship for crossing to the artificial island 71. This transportation boat 75 is provided with an ID tag and its ID
Information in the tag is sent to the host computers 1a and 1b via the antennas 5c and 5d.

In this embodiment, the antennas 5a and 5b are
Are connected to the host computers 1a and 1b, the host computer 1a opens and closes the gate 73a, and the host computer 1b opens and closes the gate 73b.

For example, when a worker tries to reach the artificial island 71 and passes under the antenna 5a, the information written in the ID tag (not shown) provided on the worker's helmet is transferred to the host computer via the antenna 5a. 1a, the host computer 1a unlocks the gate 73a and stores the worker's name and boarding time.
When the transportation boat 75 departs, the host computer 1a
Stores the departure time of the transportation ship 75 based on the ID code of the transportation ship 75 sent from the antenna 5c.

When the transportation ship 75 arrives at the artificial island 71, the host computer 1b stores the arrival time of the transportation ship 75 based on the information sent from the antenna 5d. When the worker passes under the antenna 5b, the host computer 1b unlocks the gate 73b, and stores the worker's name and arrival time. When the worker returns from the artificial island 71 to the land side 70, the reverse process to the above case is performed.

As described above, in this embodiment, the host computer 1a on the land side 70 displays the artificial island worker list,
Management such as artificial island worker management, artificial island labor management, passenger management, and transportation ship departure / arrival management will be performed.

The host computer 1b of the artificial island 71
The display of the convenient return passenger list, the display of the return flight passenger schedule list, and the transportation ship departure / arrival management are carried out. Moreover, a transportation ship 75
The list of passengers is output by the printer installed in the.

As described above, also in this embodiment, comprehensive management in marine construction can be performed.

In the above description, the embodiments of the present invention have been described by taking the shield construction site and the marine construction site as an example, but the present invention is not limited to these sites and other sites. For example, it is also applied to ground construction sites.

[0041]

As described above in detail, according to the present invention, it is possible to provide the on-site safety monitoring system capable of surely grasping the whole situation in the site and collectively controlling the situation.

[Brief description of drawings]

FIG. 1 Schematic diagram of a contactless data carrier system

[Fig. 2] Schematic diagram of a shield construction site applying a site safety monitoring system

FIG. 3 is a diagram showing a hardware configuration of a site safety monitoring system.

FIG. 4 is a flowchart showing the operation of the embodiment.

FIG. 5 is a flowchart showing the operation of the embodiment.

FIG. 6 is a flowchart showing the operation of the embodiment.

[Fig. 7] Schematic diagram of an offshore construction site applying a site safety monitoring system

[Explanation of symbols]

 1 ... Host computer 5 ... Antenna 7 ... ID tag 9 ... Communication cable 15 ... Gate 17 ... Display panel 19 ... Worker 21 ... Construction machine 23 ... Carrier 25 ......... Shield machine

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsutomu Imagawa 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor, Yukihiko Hizawa 1-chome, Moto Akasaka, Minato-ku, Tokyo No. 2-7 Kashima Construction Co., Ltd. (72) Inventor Michio Emori 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (72) Inventor Kaeda Qin, Moto-Akasaka, Minato-ku, Tokyo 1-27 Kashima Construction Co., Ltd. (72) Inventor Takashi Kobayashi Moto Akasaka 1-27 Kashima Construction Co., Ltd. Minato-ku, Tokyo (72) Inventor Kikuno Yoshihiko Yodogawa-ku, Osaka-shi, Osaka 4-8-20 Nishinakajima Rose Corp. 2107

Claims (8)

[Claims] 1. A field safety monitoring system having a host computer and antennas connected to the host computer and installed at a plurality of points, wherein a human and / or a mobile machine has a non-contact type ID tag, A site safety monitoring system characterized in that communication is performed between the ID tag and the host computer via an antenna. 2. The antenna is installed at an entrance / exit of a work site, and the host computer recognizes an ID tag of a human passing under the antenna through the antenna, thereby entering / leaving the human work site. The on-site safety monitoring system according to claim 1, characterized in that: 3. A plurality of the antennas are continuously installed at a work site, and the host computer can recognize the ID tags of humans and mobile machines passing under the plurality of antennas through the plurality of antennas. The on-site safety monitoring system according to claim 1, wherein the positions of the human and the mobile machine are managed by the. 4. The antenna is installed in the vicinity of a specific work machine, the human has a specific work qualification, and the host computer recognizes an ID tag of a human having a specific work qualification through the antenna. The on-site safety monitoring system according to claim 1, wherein the operating state of the specific work machine is switched according to. 5. The on-site safety monitoring system according to claim 1, wherein the work site is a shield construction site. 6. The work site is an offshore construction site.
Site safety monitoring system described. 7. The on-site safety according to claim 6, wherein the antenna is installed at a departure / arrival point of a transportation ship, and the host computer manages a person who passes under the antenna via the antenna. Monitoring system. 8. The traffic vessel has an ID tag, the antenna is installed at a departure point of the traffic vessel, and the host computer recognizes the traffic vessel near the antenna via the antenna, thereby The on-site safety monitoring system according to claim 6, which manages the ship.