JP2005068918A - Work environment monitoring system and work environment monitoring work execution method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To instantly cope with a case when a measuring result becomes abnormal, by measuring a surrounding state, in a work site using a construction civil engineering machine. <P>SOLUTION: This work environment monitoring system monitors the surrounding state when operating the construction civil engineering machine. The system has a measuring apparatus for measuring the surrounding state of a pile press-in extracting machine 1 as the construction civil engineering machine, and outputting a measuring signal for indicating the measuring result. The system also has a data gatherer for gathering measuring data by receiving the measuring signal. The data gatherer outputs a determining signal for indicating a determining result, by determining whether a state indicated by the measuring signal is a preset normal state or a state of stopping or restricting preset operation of the construction civil engineering machine. When the determining signal indicates the state of stopping or restricting the operation of the construction civil engineering machine, a controller 11 of the pile press-in extracting machine 1 stops or restricts the operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a work environment monitoring system and a work environment monitoring method for monitoring a work environment around a construction civil machine and controlling the operation of the construction civil machine based on the monitoring result.

At construction civil engineering construction sites, particularly architectural civil engineering construction sites in urban areas, the influence of noise and vibration on the surroundings becomes a problem. Therefore, a noise meter and a vibration meter are arranged at the construction civil engineering work site and its surroundings to measure noise and vibration.
For example, the measurement data obtained by detecting noise and vibration with the detection device installed at the measurement point is displayed to neighboring residents with the disclosure device, and if the measurement data exceeds the reference value, the control installed at the site office etc. There has been proposed a vibration noise monitoring disclosure device that issues an alarm in the device (see, for example, Patent Document 1).
In addition, in mountain construction, a construction system has been proposed that measures the state of a mountain stop with a measuring device, compares the measured data with a preset value, and issues an alarm if the data exceeds a preset value. (For example, refer to Patent Document 2).
JP-A-11-258033 JP 11-286936 A

  By the way, in general, measurement of noise and vibration at a construction site is often for the purpose of collecting measurement data, and is used, for example, as proof that no large noise or vibration occurs during construction. Therefore, there is a problem that when a large noise or vibration occurs, the influence on the surroundings cannot be quickly reduced. That is, even if an alarm is issued when the noise is higher than the reference value, the noise cannot be reduced quickly, and the surroundings may be affected.

In addition, there is a possibility that the situation will deteriorate rapidly in the mountain construction, and if it is judged whether the construction is to be stopped or continued after the warning is given, the response may be delayed.
It is also used for construction civil engineering machinery that does not generate large noise or vibration, such as construction of retaining walls (sheet pile walls). In the known pile press-fitting and pulling machine that performs press-fitting or pulling-out, noise and vibration exceeding the preset standard value is basically impossible, and if it occurs, there is a possibility that the work has abnormally occurred. There is a possibility that measures other than measures for simply considering noise to the surroundings may be required.

  An object of the present invention is to provide a work environment monitoring system and a work environment monitoring method capable of instantaneously responding to a measurement result that becomes abnormal while measuring the surrounding state in a construction site using a construction civil engineering machine. That is.

  The invention according to claim 1 is a work environment monitoring system for monitoring a surrounding state when operating a construction civil engineering machine, and measures the surrounding state of the construction civil engineering machine and indicates a measurement result of the state. Measuring means for outputting a measurement signal, and a determination indicating whether the state indicated by the measurement signal is a normal state in which the state is set, or a state in which the set operation of the construction civil machine is stopped or restricted, and a determination result indicating the determination result A state monitoring unit that outputs a signal; and a machine control unit that stops or restricts the operation of the construction civil machine when the determination signal indicates a state in which the operation of the construction civil engineering machine is stopped or restricted. To do.

According to the first aspect of the present invention, the measurement signal output from the measurement unit that measures the state around the construction civil machine (including the state of the construction civil machine itself) is transmitted to the state monitoring unit. Then, when there is an abnormality in the state measured by the measurement means indicated by the measurement signal, that is, when the state monitoring means is not in a normal state, the state monitoring means operates the construction civil engineering machine based on the measurement signal output from the measurement means. Is determined to be in a state to be stopped or restricted, and a determination signal indicating the determination result is transmitted to the machine control means of the construction civil engineering machine.
And a machine control means stops or restrict | limits the operation | movement of a construction civil engineering machine, when the determination result shown by the determination signal is abnormal.

  Therefore, when the situation of the construction site changes suddenly, the construction can be quickly interrupted in response to the sudden change of situation by stopping or restricting the operation of the construction civil engineering machine. As a result, it is possible to prevent an abnormal sound or vibration from continuing for a long time to increase the influence on the surroundings. In addition, when a problem occurs in the work itself, the problem can be prevented from occurring by stopping or limiting the operation of the construction civil engineering machine. That is, it is possible to prevent harmful effects caused by continuing construction without taking measures in an abnormal situation.

  According to a second aspect of the present invention, in the work environment monitoring system according to the first aspect, the state monitoring means issues a warning in addition to the determination of the normal state and a state in which the construction civil engineering machine is stopped or restricted. A warning execution means for warning a worker engaged in the work related to the construction civil engineering machine when the judgment signal indicates a state in which the judgment signal is set and a warning is given. And

According to the second aspect of the present invention, the state monitoring means based on the measurement signal relates to the construction civil engineering machine, although the state of the surroundings of the construction civil engineering machine is not, for example, a level that interrupts the work by the construction civil engineering machine. Notify the workers who perform the work, for example, the operator of the construction engineering machine, the worker who works in the vicinity of the construction engineering machine, the manager of the work using the construction engineering machine, or the supervisor. Can be notified by an alarm. By taking a countermeasure based on the alarm at this time, it may be possible to prevent the operation of the construction civil engineering machine from being stopped or restricted as described above.
In addition, when there is a possibility that it is better to stop or restrict the operation of the construction engineering machine, an alarm is issued in the previous condition to notify the worker of the operation of the construction engineering machine. Gives time to respond to outages and restrictions.

  According to a third aspect of the present invention, in the work environment monitoring system according to the first or second aspect, the measurement means includes an imaging means for photographing the surroundings of a construction civil engineering machine, and the state monitoring means is the imaging means. Image recognition means for recognizing an intruder that enters the monitoring area set in the image data as the measurement signal photographed in the state, the state monitoring means corresponding to the recognition result of the image recognition means, Judgment is performed.

  According to a third aspect of the present invention, the imaging means as the measuring means takes an image of the surroundings of the construction civil engineering machine (which may include the construction civil engineering machine itself), and the situation monitoring means is the monitoring set in the image data Recognize intruders that may enter the area (which may include construction civil engineering machines themselves), for example, construction civil engineering machinery (for example, a part) is close to the construction site or a danger such as a structure or hole in the construction site Stopping or restricting the operation of construction civil engineering machinery when entering the monitoring area set around the area, or when people or vehicles enter the monitoring area set around the construction civil engineering machine Damage can be prevented.

  Further, an intruder that enters the second monitoring area is divided into a first monitoring area that should respond urgently to the above-mentioned monitoring area and a second monitoring area that should be alerted outside the first monitoring area. If an intruder is allowed to enter the first monitoring area, an alarm is issued if the operation of the construction engineering machine is to be stopped or restricted. By responding at the time, it may be possible to prevent a situation in which the operation of the construction engineering machine is stopped or restricted.

The invention described in claim 4 is characterized in that the work environment monitoring system according to any one of claims 1 to 4 is equipped with the measuring means and the state monitoring means.
According to the fourth aspect of the present invention, the inter-work environment system of the present invention can be easily constructed on the construction site by arranging the vehicle so as to run on its own to the construction site.
In addition, the function which can stop or restrict | limit operation | movement of a construction civil engineering machine based on the determination signal which a condition monitoring means outputs is required for the machine control part which controls a construction civil engineering machine.

  According to a fifth aspect of the present invention, in the working environment monitoring method using the working environment system according to any one of the first to fourth aspects, the working environment around the construction civil engineering machine at the construction civil engineering work site is monitored. The operation of the construction engineering machine is controlled based on the monitoring result.

  According to the fifth aspect of the present invention, it is possible to prevent the occurrence of problems at the construction site by controlling the operation of the construction civil engineering machine at the construction site in accordance with the work environment. Can be secured. In addition, since work can be carried out within a certain noise level for noise problems, etc., it is possible to work without interruption due to complaints from neighboring residents, thereby preventing the construction period from being extended. . In addition, for example, noise problems can be prevented immediately before the problem occurs, so that no cost and time loss are required for solving the problem.

  According to the present invention, when the situation of the construction site changes suddenly, the construction can be quickly interrupted in response to the sudden change of the situation by stopping or limiting the operation of the construction civil engineering machine. As a result, it is possible to prevent abnormal sounds and vibrations from continuing for a long time and expanding the influence on the surroundings. Occurrence of problems can be prevented beforehand by restrictions.

A working environment monitoring system according to a first embodiment of the present invention will be described below with reference to the drawings.
As shown in the block diagrams of FIGS. 1 and 2, the working environment monitoring system of this example is an application of the present invention to a construction site of a pile press-fitting and extracting machine 1 as a construction civil engineering work machine.
The working environment monitoring system includes a measuring device 21 (measuring means), a data collecting device 22 (state monitoring means) shown in FIG. A data collection vehicle 2 equipped with one of 24, a controller 11 (machine control means) provided in a pile press-fitting and drawing machine 1 that is a construction civil engineering machine, and a radio 12 for communication with the data collection device 22 And one of the cables 13.

  The measuring device 21 monitors the surrounding state when operating the construction civil engineering machine, and is provided in the data collection vehicle 2, but is used while mounted on the data collection vehicle 2. In some cases, the vehicle is unloaded from the data collection vehicle 2 and installed in a place suitable for measurement. Each measuring device 21 is connected to a data collecting device 22 so that a measuring signal indicating a measurement result is output from the measuring device 21 to the data collecting device 22. Each measuring device 21 is connected to the data collection device 22 with a cable and transmits the above-described measurement signal. For example, the measurement device 21 and the data collection device 22 are provided with a wireless communication device. The measuring device 21 and the data collecting device 22 may be connected wirelessly so that measurement signals can be transmitted and received. In particular, the measuring device 21 arranged at a position away from the data collecting vehicle 2 has a wireless function. Is preferred.

Moreover, as a measuring instrument with which the data collection vehicle 2 is equipped, the working environment measuring means which measures working environments, such as a noise and a vibration, and the inclination, subsidence, horizontal movement, etc. of a ground and a structure are detected. That is, it has a displacement measuring means for measuring changes (displacements) of the ground and structures, and a weather measuring means for measuring weather conditions such as rainfall, wind speed, wind direction, temperature, and humidity.
Specific examples include sound level meters, vibration meters, inclinometers, subsidence meters, horizontal displacement meters, rain gauges, anemometers, wind direction meters, thermometers, hygrometers, etc. Other measuring means can be used as long as it can grasp the state of the construction site. For example, it is possible to use various measuring means such as an imaging means such as a surveillance camera, which will be described later, and a soil pressure gauge, a tide gauge, a water gauge, and a water flow speed meter in consideration of the type of construction and the place where the construction is performed good.
The structure is, for example, a building such as a building, a bridge, a railway, or the like, and may be a target of construction work involving a construction civil engineering machine, or may be a target of direct construction. Instead, it may be a structure in the construction site or in the vicinity of the construction site.

  In addition, each measuring instrument 21 is equipped and mounted on the data collection vehicle 2 with all the types necessary for monitoring the situation around the construction civil engineering machine at the construction site. Note that the data collection vehicle 2 can be equipped with and equipped with all types of measuring instruments 21 required at various construction sites that require work performed by the construction engineering machine, for example, corresponding to the type of construction engineering machine. Preferably, it is preferable not to change the measuring instrument 21 to be mounted and equipped for each construction site. The measuring device 21 as described above is a measuring unit that measures a state around the construction civil engineering machine and outputs a measurement signal indicating a measurement result of the state.

  The data collection device 22 receives, for example, a measurement signal transmitted (output) from a measuring instrument, converts it into, for example, digital measurement data, collects and stores and stores each measurement data, For example, a data logger, various computers, or the like can be used as the data collection device 22. Note that a data logger having a computer connected to the data logger may be used. In the case where the measuring device 21 performs digital conversion and outputs digital measurement data as a measurement signal, it is not necessary to digitally convert the measurement signal by the data collection device 22.

In addition, the data collection device 22 of this example needs not only to collect and store measurement signals as measurement data by simply receiving measurement signals from a plurality of measuring devices 21, but also to perform the following warning stop determination processing. There is.
For the following processing, the data collection device 22 has a warning value as a first threshold value input in advance and input as a second threshold value for each measuring device 21 or each type of measuring device 21. The stop value is stored in a semiconductor storage device such as various memories, an optical / magnetic storage device such as a hard disk, CD, DVD, or MO, and a program for performing the following processing. The warning value and stop value may be set at the level of the measurement signal when the measurement signal is analog, and may be compared with the measurement signal before digital conversion. May be compared with digital measurement data.

  In addition, for each measuring instrument, considering the possibility that the measurement data may interfere with the work and the adverse effects on the surroundings, it is possible to actually interfere with the work or to adversely affect the surroundings. However, it is not preferable to continue the work as it is, exceeding the normal value range by slightly exceeding the normal value range and taking a measure that is preferable to take some measures as a warning value. The value is the stop value. For example, in the case of noise or vibration, a level slightly lower than the level at which some of the neighboring residents feel uncomfortable may be used as the warning value, and a level at which half of the neighboring residents feel uncomfortable may be set as the stop value. . In addition, for example, when measuring displacement without measuring the warning value or stop value as the level of the measurement signal or measurement data, the value of displacement speed may be used as the warning value or stop value instead of the displacement level. good. That is, when the displacement speed is low, that is, when the displacement is slightly slow, the warning value may be used, and when the displacement speed is high, the stop value may be used.

In the warning stop determination process performed by the data collection device 22, as shown in FIG. 2, the data collection device 22 receives the measurement signal and collects the measurement data (step S1) at every predetermined timing or for a predetermined time. The measurement data is compared with the warning value every time (for example, every 100 msec) (step S2).
If the measurement data is lower than the warning value, it is determined that the measurement data indicates a normal state (step S3). On the other hand, if the measurement data is higher than the warning value, the measurement data is then compared with the stop value (step S4). If the measurement data is lower than the stop value, it is determined that the measurement data indicates a warning state (step S5). On the other hand, when the measurement data is higher than the stop value, it is determined that the measurement data indicates a state in which the operation of the construction civil engineering machine is stopped or restricted (step S6).

  Then, the data collection device 22 wirelessly transmits a determination signal indicating the determination result of the warning stop determination process described above, that is, a normal state, a state in which a warning is issued, or a state in which the operation of the construction civil engineering machine is stopped or restricted. Using the machine 23 or the cable 24, it transmits (outputs) to the controller 11 which is a machine control means. That is, the data collection device 22 determines whether the state indicated by the measurement signal is a normal state set in advance or a state in which the operation of the construction civil engineering machine set in advance is stopped or restricted, and the determination result is also shown. It functions as a state monitoring unit that outputs a determination signal, and also functions as a state monitoring unit that determines whether or not to issue an alarm in addition to the determination of the normal state and the state of stopping or restricting the construction civil engineering machine. .

  The pile press-fitting and pulling machine 1 as a construction civil engineering machine is a well-known machine, and includes a plurality of clamps 1a (shown in a state where the pile is seen through) that grips a steel pipe sheet pile 10 (pile) that has already been press-fitted (placed). A saddle 1b, a slide base 1c slidably movable back and forth with respect to the saddle 1b, a swivel mast 1d mounted on the slide base 1c so as to be turnable to the left and right, and movable up and down along the front surface of the swivel mast 1d. And the chuck | zipper 1e which press-fits a pile by descend | falling in the state which hold | gripped the pile is provided. The pile press-fitting / pulling machine 1 is capable of pressing and pulling piles by taking a reaction force from the existing piles, and can press-fitting and pulling piles while self-propelled on the piles that are press-fitted side by side. It has become. In addition, the pile which the pile press-fitting / extracting machine 1 can press-fit is not limited to the steel pipe sheet pile 10, and there exists the pile press-fitting / extracting machine 1 capable of press-fitting various piles.

  Moreover, the pile press-fitting / pulling-out machine 1 of this example is provided with a warning lamp (not shown) that is turned on when the warning is performed as described above. In addition, a status indicator 15 is provided as a warning device. The status indicator 15 is a display capable of giving a warning. For example, the status indicator 15 displays the type of the measuring instrument and the measurement value that have transmitted the measurement signal that is in a warning state or in a state of being stopped or restricted. It can be displayed. In addition, the pile press-fitting and extracting machine 1 may be provided with a voice generator that generates a warning sound.

  In addition to the pile press-in / pull-out machine 1, there may be a device that functions as the warning execution means of the present invention. For example, the power source unit vehicle 3, the field office, or a pile press-in / pull out machine as will be described later. A computer having a display as a warning execution means for issuing a warning when a determination signal is received by a crane or the like for supplying piles to 1 and the determination signal indicates a warning state based on the determination signal Etc.

  Further, the pile press-fitting / extracting machine 1 is connected to a power source unit vehicle 3 that can supply hydraulic pressure and electric power to the pile press-fitting / pulling machine 1 and that is a power source of the pile press-fitting / pulling machine 1. Further, the pile press-in / pull-out machine 1 is capable of remote control, and has a control panel operated by an operator as a control device, a remote controller that transmits a control signal corresponding to the operation of the control panel, and a pile press-fit pull-out A controller main body is provided in the machine 1 and controls opening and closing of various hydraulic valves based on a control signal transmitted from a remote controller. The remote controller and the controller main body can communicate with each other wirelessly (wireless device) or wired (cable).

The controller 11 serving as the machine control means of the present invention will be described as the above-described controller main body in this example. However, the controller 11 may correspond to a remote controller. In this case, the data is transmitted from the data collection device 22. The determination signal to be transmitted is transmitted to the remote controller. In the remote controller, it is determined whether to issue an alarm based on the determination signal as will be described later, whether to stop or limit the operation of the pile press-fitting / pulling machine 1, and the remote controller It is also possible to output a control signal according to the determined content.
The determination signal transmitted from the data collection device 22 is a control signal (command signal) transmitted from the remote controller when the pile press-fitting / extracting machine 1 is controlled from the remote controller. The controller may function as a controller, or at this time, a determination signal that is a command signal may be relayed to the controller main body by the remote controller. In addition, a display device or a utterance device that issues a warning when a determination signal indicating a warning state or a stop or limit state is input to the remote controller may be provided. That is, the remote controller may function as the warning execution means of the present invention.

The controller 11 controls the operation of the pile press-fitting / pulling machine 1 based on a control signal (command signal) output based on an operator's operation from the remote controller, and is transmitted from the data collection device 22 described above. The determination signal is received by the wireless device 12 or the cable 13 as a kind of command signal, and the following determination correspondence control processing is performed.
That is, when the command signal is received (step S11), when the command signal is a determination signal indicating that the warning signal is in a state of being warned (step S12), the warning lamp is turned on and the warning on the status indicator 15 is displayed. A control signal is output to the warning lamp and the status indicator so as to give an alarm such as a display (step S13).

When the command signal indicates the stop or restriction of the operation of the construction civil machine (step S14), for example, the pile press-fitting / pulling machine 1 and the power source unit vehicle 3 are regarded as an integrated civil construction machine and the controller 11 The power source unit vehicle 3 can be controlled from the power source unit 3 and the power source 3a (power generator, hydraulic unit), etc. of the power source unit vehicle 3 can be stopped, or power can be supplied without stopping the power source itself. It is good also as what interrupts. Moreover, it is good also as what controls a switch, valve | bulb 1f, etc. by the pile press-fit extraction machine 1 side, and stops the pile press-fit extraction machine 1. FIG. That is, the operation of the construction civil machine is stopped or restricted (step S15).
The pile press-fitting / pulling machine 1 is configured so that the clamp 1a and the chuck 1e hold the pile when the power supply or the hydraulic pressure is cut off, and the pile press-fitting / pulling machine 1 falls over. There is nothing to do.

  Further, without stopping the pile press-fitting / extracting machine 1 completely, for example, the vertical movement of the chuck 1e holding the pile, the turning of the turning mast 1d, or the back-and-forth movement of the slide base 1c is restricted. You may do it. Further, the upper limit of the operation speed may be limited if the construction civil engineering machine can adjust the operation speed. That is, it is good also as what restrict | limits the operation | movement which suppresses the capability of a construction civil engineering machine.

  If the determination signal (command signal) is neither a warning nor a stop, the controller 11 determines that the signal is normal and normal control is performed (step S16). Therefore, the controller 11 functions as a machine control means for stopping or restricting the operation of the construction civil machine when the determination signal indicates a state for stopping or restricting the operation of the construction civil engineering machine, and also a warning lamp or a status indicator. When the determination signal indicates a state in which an alarm is issued together with 15 and the sound generator, it functions as an alarm execution means for issuing an alarm to a worker engaged in work related to the construction civil engineering machine.

  According to the work environment monitoring system as described above, based on the measurement signal input from each measuring instrument 21, the data collection device 22 indicates a warning if the measured value (measurement data) indicated by the measurement signal is greater than or equal to the warning value. A command signal (determination signal) is output, and if the measured value is equal to or greater than the stop value, a command signal indicating stop (limit) is transmitted. And when the command signal indicates an alarm, the controller 11 issues an alarm using a warning light, a sound generator, a status indicator 15 or the like, and when the command signal indicates a stop (limit), the pile press-fitting / extracting machine 1 Stop or limit the operation. Therefore, when a large noise or vibration occurs in the construction using the pile press-fitting / extracting machine 1, the operation of the pile press-fitting / extracting machine 1 is stopped or restricted so that the noise or vibration is eliminated or reduced. Thus, the influence on the surroundings can be prevented in advance. In addition, when noise and vibration become larger than normal, an alarm is issued to alert the worker and take some measures to stop the construction civil engineering machine as described above. There is a possibility that it can be prevented from happening.

  In addition, when the measured value becomes a stop value that causes trouble to the work when the construction civil engineering machine continues the work, the construction civil engineering machine is temporarily stopped to prevent development of a major problem. be able to. Moreover, if the warning value is given and the warning is issued before that, it may be possible to prevent the construction civil engineering machine from being stopped as described above. In particular, it is possible to stop or limit the operation of construction civil engineering machinery in real time in response to fluctuations in measured values, so that even if measured values deteriorate rapidly, it is possible to respond quickly and prevent major problems. Can do.

  In addition, since a plurality of measuring instruments 21 and a data collection device 22 necessary for the data collection vehicle 2 are installed and mounted, the data collection vehicle 2 is used in the construction by the construction civil engineering machine having the controller 11 as described above. Is directed to the construction site, the data collection vehicle 2 is arranged at the construction site, and the measuring device 21 is moved from the data collection vehicle 2 to the measurement position as necessary, thereby constructing the work environment monitoring system of the present invention. It can be easily placed on site.

Next, a second embodiment of the present invention will be described.
In the second embodiment, the measuring device 21 uses a monitoring camera 21a as an imaging unit, and has a function as an image recognition unit that performs image recognition on the data collection device 22 as a state monitoring unit. The above-described warning stop determination process is performed based on the image recognition result of the image data as the measurement signal from the monitoring camera 21a. Moreover, the crane 4 which supplies a pile to the said pile press-fit extraction machine 1 is used as a construction civil engineering machine, and the said controller 11 is provided in the crane 4. FIG. In the second embodiment, the description of the same configuration as that of the first embodiment is omitted, and the portion without description has the same configuration as that of the first embodiment.

  The monitoring camera 21a as the measuring instrument 21 is equipped and mounted on the data collection vehicle 2 described above. If the data collection vehicle 2 can be arranged at an appropriate position for photographing, the monitoring camera 21a is mounted on the data collection vehicle 2. It may be used in the vehicle or may be used after being taken down from the data collection vehicle 2. Then, when used after being taken down from the data collection vehicle 2, it is preferable that a wireless device 21b for transmitting image data is connected to the monitoring camera 21a, but image data as a measurement signal is transmitted by wire. It is good as a thing. When the wireless device 21b is connected to the monitoring camera 21a, the wireless device 26 that receives the image data is connected to the data collection device 22 mounted on the data collection vehicle 2.

The data collection device 22 has a function of performing image recognition (image analysis) on image data captured by the monitoring camera 21a and received as a measurement signal.
In this example, it is assumed that there is an existing building 5 (structure) within the working radius of the jib 41 of the crane 4 (in the construction site or in the vicinity of the construction site), and the crane 4 is within the imaging range of the monitoring camera 21a. And at least the part of the crane 4 side of the building 5 enters.

As shown in FIG. 4, in the data collection device 22, two adjacent monitoring areas 6 and 7 are set between the building 5 and the crane 4 in the received image data. One monitoring area 7 is set on the crane 4 side, and the other monitoring area 6 is set on the building 5 side. And the data collection device 22 as an image recognition means can recognize that the jib 41 of the crane 4 and the pile (steel pipe sheet pile 10) suspended from the jib 41 enter the monitoring areas 6 and 7 as intruders. ing.
For example, a change with time of the color (luminance) of each pixel in the monitoring areas 6 and 7 in the sequentially input image data is recognized, and is set in advance in a predetermined number or more pixels. It is assumed that there is an intruder in the monitoring area when a change in color value exceeding the specified range (for example, a change in value for each RGB when the image data is displayed in RGB) and a change in luminance are met. In addition, it is good also as what recognizes a pile and the jib 41 more correctly from the difference between the color of a pile (steel pipe sheet pile 10), the color of the jib 41, and the color of a background. Moreover, you may make it recognize a pile and the jib 41 with another known image recognition method.

  When the data collection device 22 recognizes that the jib 41 or the pile has entered the second monitoring area 7 closer to the crane 4 (construction site) than the building 5 as an intruder, in the warning stop determination process described above, , It is determined that a warning is to be made. In addition, when the data collection device 22 recognizes that the jib 41 or the pile has entered the first monitoring area 6 closer to the building 5 than the second monitoring area 7 as an intruder, in the warning stop determination process described above, It is determined that the state is to be stopped or restricted. When the intrusion into the monitoring areas 6 and 7 is not recognized, it is determined as normal. And as mentioned above, the data collection device 22 transmits a determination signal to the crane 4 as a construction civil engineering machine by radio or wire.

In addition, the crane 4 is provided with the controller 11 as described above, and is also provided with a cable for wired communication or a communication device for wireless communication, and can receive a determination signal as a command signal from the data collection device 22, The operation can be stopped or restricted by the control of the controller 11 based on the command signal.
Here, for example, when a judgment signal indicating a warning is transmitted from the data collection device 22 when the jib 41 of the crane 4 enters the second monitoring area, a warning light (not shown) of the crane 4 is controlled by the controller 11. In the status indicator and the sound generator, an alarm is performed by turning on a warning light, displaying a warning, producing a warning sound, or the like. As a result, the operator of the crane 4 is instructed not to perform an operation for bringing the jib 41 closer to the building 5.

When the jib 41 of the crane 4 enters the first monitoring area and a determination signal indicating stop or restriction is transmitted from the data collection device 22, the operation of the crane 4 is stopped by the control of the controller 11, for example. . Thereby, when the crane 4 continues operation | movement, it can prevent that the pile suspended by the jib 41 and the jib 41 contacts the building 5. FIG.
Instead of completely stopping the operation of the crane 4, the movement of the jib 41 in the direction approaching the building 5 may be limited, and the movement of the jib 41 in the direction away from the building 5 may be enabled. In this case, the jib 41 can be moved away from the building 5 and the jib 41 can be taken out of the monitoring area. In this case, the data collection device 22 recognizes that there are no intruders such as the jib 41 in the monitoring areas 6 and 7, and determines that the data is normal. And when it determines with a normal state, the data collection device 22 transmits the determination signal which shows a normal state as a command signal. Then, when a determination signal indicating normality is input after the determination signal indicating the restriction on the operation is received and the operation of the construction civil machine is limited, the controller 11 cancels the control for limiting the operation, and the construction civil machine It is good also as what controls normally.

In addition, after stopping or restricting the operation of the construction civil engineering machine including the embodiment of the first example described above, for example, when safety confirmation or some measures are taken, the controller 11 stops or restricts the operation. Must be releasable.
As described above, according to the work environment monitoring system of the second embodiment, a situation in which the jib 41 of the crane 4 contacts the building 5 can be reliably prevented.

It is drawing for demonstrating the pile press-fit drawing machine and its controller of the working environment monitoring system of the 1st Embodiment of this invention. It is drawing for demonstrating the data collection apparatus of the data collection vehicle of a work environment monitoring system. It is drawing for demonstrating the work environment system of the 2nd Embodiment of this invention. It is drawing for demonstrating the work environment system of 2nd Embodiment.

Explanation of symbols

1 Pile press-fitting and drawing machine (construction civil engineering machinery)
2 Data collection vehicle (vehicle)
11 Controller (Mechanical control means, alarm execution means)
15 Status indicator (alarm execution means)
21 Measuring instrument (measuring means)
21a Monitoring camera (imaging means, measuring means)
22 Data collection device (status monitoring means, image recognition means)

Claims (5)

A working environment monitoring system for monitoring the surrounding conditions when operating a construction civil engineering machine,
Measuring means for measuring a state around the construction civil engineering machine and outputting a measurement signal indicating a measurement result of the state;
A state monitoring unit that determines whether the state indicated by the measurement signal is a normal state that is set, or a state that stops or restricts the operation of the set construction civil machine, and outputs a determination signal that indicates a determination result;
Machine control means for stopping or limiting the operation of the construction civil machine when the determination signal indicates a state of stopping or limiting the operation of the construction civil engineering machine;
A working environment monitoring system comprising: The state monitoring means, in addition to the determination of the normal state and the state of stopping or restricting the construction civil engineering machine, determines whether or not it is in a state of performing an alarm,
The work according to claim 1, further comprising warning execution means for warning a worker engaged in work related to the construction civil engineering machine when the determination signal indicates a set warning state. Environmental monitoring system. The measuring means includes an imaging means for photographing the surroundings of the construction civil engineering machine,
The state monitoring means includes image recognition means for recognizing an intruder that enters a monitoring area set in image data as a measurement signal imaged by the imaging means,
The work environment monitoring system according to claim 1, wherein the state monitoring unit performs the determination according to a recognition result of the image recognition unit.   The work environment monitoring system according to claim 1, wherein the measuring unit and the state monitoring unit are provided in one vehicle.   The working environment system according to any one of claims 1 to 4 is used to monitor the working environment around the construction civil engineering machine at the construction civil engineering work site, and control the operation of the construction civil engineering machine based on the monitoring result. A work environment monitoring method characterized by this.

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