JP2007120110A - Heavy machinery approaching alarm device - Google Patents

Abstract

A heavy equipment approaching alarm device capable of improving safety by preventing contact between the heavy equipment and an approaching person when a heavy equipment approaches an approaching person at a construction site. To provide.
When a heavy machine 2 and an approaching person 3 approaching the heavy machine 2 approach a predetermined distance at a construction site, the approach information of the approaching person 3 is notified to an operator of the heavy machine 2. The approaching person 3 has a wireless tag 4 that transmits ID data for identifying the approaching person 3, a receiving apparatus 5 that is attached to the heavy machine 2 and receives the ID data, and is connected to the receiving apparatus 5 And a notification device 6 that notifies approach information based on the received ID data, wherein the notification device 6 notifies different approach information for each received ID data. Device 1.
[Selection] Figure 1

Description

  The present invention relates to a heavy equipment approaching alarm device for notifying an operator of the heavy equipment when the heavy equipment and an approaching person approaching the heavy equipment approach a predetermined distance at a construction site.

  Conventionally, there is a technology that can quickly detect the contact state between work vehicles such as heavy machinery and other work vehicles and workers who work around them, and improve safety measures for other surrounding vehicles and workers. It is known (see, for example, Patent Document 1).

The contact alarm device described in Patent Document 1 includes an apparatus main body that is detachably attached to a driver's cab, and a contact member that is supported by the apparatus main body so as to be swingable in an arbitrary direction and has flexibility. And.
When a contact object such as a worker comes into contact with one end side of the contact member, an alarm is issued from an alarm unit disposed in the vicinity of the cab.
Japanese Patent Laid-Open No. 11-222881

  However, in the contact alarm device as described above, since the alarm is not issued unless the contact member comes into contact with a contact object such as an operator, the operator approaches the work vehicle and the operator is in contact with the contact member. When it was not touched, it was sometimes difficult to ensure sufficient safety.

  The subject of this invention is the heavy machine approacher who can aim at the improvement of safety by preventing the contact between the heavy machine and the approaching person when the heavy machine and the approaching person approaching the heavy machine approach the construction site It is to provide an alarm device.

  In order to solve the above problems, the invention described in claim 1 is, for example, as shown in FIGS. 1 and 2, a heavy machine 2 and an approaching person 3 approaching the heavy machine 2 at a construction site up to a predetermined distance. A heavy machine approaching person alarm device 1 for notifying an operator of the heavy machine 2 of approach information of the approaching person 3 when approaching, ID data for the approaching person 3 to identify the approaching person 3 A wireless tag 4 for sending, a receiving device 5 attached to the heavy machine 2 for receiving the ID data, and a notifying device 6 connected to the receiving device 5 for notifying approach information based on the received ID data. The notification device 6 notifies different approach information for each received ID data.

  According to the first aspect of the present invention, the ID data for identifying the approaching person is received by the receiving device, and the approach information based on the received ID data is notified to the operator of the heavy equipment. Can quickly know the approach information of the approaching person. Thus, the operator can grasp the approach distance between the heavy machine and the approaching person and prevent the heavy machine and the approaching person from coming into contact with each other, thereby improving the safety.

  Further, since the notification device can notify different approach information for each received ID data, not only to prevent contact between the heavy equipment and an approaching person as described above, but also the approach information, It can be used as a cue for the operator to recognize that an approaching person such as a work vehicle that should proceed with the heavy machinery has reached a predetermined distance. As a result, the link work between the heavy machinery and the approaching person such as the work vehicle can be smoothly advanced, so that the work efficiency can be improved.

  The invention according to claim 2 is characterized in that, in the heavy equipment approaching person alarm device 1 according to claim 1, for example, as shown in FIGS. 1 and 2, the approaching person 3 is an operator 3a.

  According to the second aspect of the present invention, the operator of the heavy machine can quickly recognize the approaching person as a worker, so that the approaching distance between the heavy machine and the worker can be grasped, and the heavy machine Contact with workers can be prevented in advance, and safety can be improved.

  The invention described in claim 3 is characterized in that, as shown in FIGS. 1 and 2, for example, in the heavy equipment approaching person alarm device 1 described in claim 1, the approaching person 3 is a transport vehicle 3b.

  According to the invention described in claim 3, since the operator of the heavy equipment can quickly recognize the approaching person as a transport vehicle, the approach distance between the heavy equipment and the transport vehicle is grasped, Contact with the transport vehicle can be prevented and safety can be improved.

  In addition, since the approach information can be used as a cue for the operator to recognize that the transport vehicle that works together with the heavy machinery has reached within a predetermined distance, the linkage work between the heavy machinery and the transport vehicle As a result, the working efficiency can be improved.

  According to a fourth aspect of the present invention, for example, as shown in FIGS. 1 and 2, in the heavy equipment approaching person alarm device 1 according to the first aspect, the approaching person 3 is another heavy equipment 3c. .

  According to the invention of claim 4, since the operator of the heavy machine can quickly recognize the approaching person as another heavy machine, grasp the approach distance between the heavy machine and the other heavy machine, Contact between the heavy machinery and other heavy machinery can be prevented in advance, and safety can be improved.

  Further, since the approach information can be used as a cue for the operator to recognize that another heavy machine that works together with the heavy machine has reached within a predetermined distance, the heavy machine and the other heavy machine The linkage work can be smoothly performed, and the work efficiency can be improved.

  The invention according to claim 5 is the heavy equipment approaching person alarm device 1 according to any one of claims 1 to 4, for example, as shown in FIGS. 1 and 2, wherein the notification device 6 is the approaching person. A lighting unit 6a that emits different light for each of the three types, and an announcement unit 6b that emits a different sound for each type of the approaching person 3, and the light emitted by the lighting unit 6a and the announcement unit 6b The approach information is composed of at least one of voices to be uttered.

  According to the invention of claim 5, by notifying at least one of the different light for each type of approaching person and the sound different for each type of approaching person with the notification device, The type of approaching person approaching the heavy machinery can be immediately recognized by the operator of the heavy machinery. As a result, the approach distance between the heavy machine and the approaching person can be grasped, and the contact between the heavy machine and the approaching person can be prevented in advance, and the safety can be improved. In addition, it is possible to smoothly advance the link work between the heavy machinery and the approaching person, thereby improving the work efficiency.

  The invention according to claim 6 adjusts the transmission distance of the wireless tag 4 in the heavy equipment approaching person alarm device 1 according to any one of claims 1 to 5, for example, as shown in FIGS. It is possible.

  According to the invention described in claim 6, by adjusting the transmission distance of the wireless tag, the notification device is not operated when the heavy machinery and the approaching person are closer than the predetermined distance. It becomes possible. As a result, when the approaching person approaches the heavy machinery, the notification device does not continue to operate, so that the operator of the heavy machinery and the approaching person working around it are comfortable. It is possible to work in an environment.

  The invention according to claim 7 is the heavy equipment approaching person alarm device 1 according to any one of claims 1 to 6, for example, as shown in FIGS. 1 and 2, wherein the receiving device 5 includes a plurality of ID data. Can be read simultaneously.

  According to the seventh aspect of the present invention, since the receiving device can simultaneously read a plurality of ID data, the operator of the heavy machinery promptly uses the notification device to indicate that there are a plurality of approaching people approaching the surroundings. Can be recognized. As a result, the operator of the heavy machine can take care of only the one approaching person and not pay attention to the other approaching person, so that the contact between the heavy machine and the plurality of approaching persons can be prevented. It is possible to prevent this, and it is possible to improve safety.

According to the present invention, ID data for identifying an approaching person is transmitted by a wireless tag, the ID data is received by a receiving device attached to a heavy machine, and further, access information based on the received ID data. To the operator of the heavy equipment, the operator can quickly know the approach information of the approaching person, can grasp the approach distance between the heavy equipment and the approaching person, can prevent the contact in advance, It is possible to improve.
In addition, since the notification device connected to the reception device can notify different approach information for each received ID data, the access information is used for a transport vehicle or other heavy machinery that works together with the heavy machinery. Can be used as a cue for the operator to recognize that has reached within a predetermined distance. As a result, the link work between the heavy machinery and the transport vehicle, other heavy machinery, or the like can be smoothly advanced, so that the work efficiency can be improved.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, the heavy equipment approaching person alarm device 1 of the present embodiment, when the heavy equipment 2 and the approaching person 3 approaching the heavy equipment 2 approach a predetermined distance at the construction site, Notifying the approach information of the approaching person 3 to the operator of the heavy machinery 2,
The approaching person 3 has a wireless tag 4 that transmits ID data for identifying the approaching person 3, a receiving apparatus 5 that is attached to the heavy machine 2 and receives the ID data, and is connected to the receiving apparatus 5 And a notification device 6 that notifies approach information based on the received ID data, and the notification device 6 notifies different approach information for each received ID data.

Here, as shown in FIG. 1, the heavy machinery 2 indicates a power shovel including a bucket 2a for excavating earth and sand and the like, and a caterpillar 2b as an advancing means. An operator for maneuvering the heavy machine 2 is on board the heavy machine 2.
Further, as shown in FIG. 2, the approaching person 3 according to the present embodiment includes any one of an operator 3 a, a transporter 3 b that transports earth and sand, and another heavy machine 3 c that performs a work different from the heavy machine 2. Pointing.

  As shown in FIG. 1, the wireless tag 4 is carried by the worker 3a, attached to the transport vehicle 3b, and attached to the other heavy machine 3c. In addition, when the worker 3a carries the wireless tag 4, it is preferable that the worker 3a is attached to an object that is always worn during work, such as a helmet.

Although not shown, such a wireless tag 4 includes at least a transmitting antenna unit and a transmitting circuit unit for transmitting ID data, a storage unit for storing various data such as the ID data, a program, and the like, a power supply unit, The inside is configured with a microcomputer section for controlling these sections.
The wireless tag 4 is lightweight so as not to hinder the work even if it is worn, and the power supply unit is also battery-powered, and a small lithium button battery or the like is used.

  Each internal component of the wireless tag 4 is covered with a small-chassis tag body made of resin or the like. Furthermore, it is preferable to place such a wireless tag 4 in a waterproof case because it can be prevented from being exposed to wind and rain.

As a procedure for transmitting the ID data by the wireless tag 4, the ID data stored in the storage unit is extracted under the control of the microcomputer unit, and the extracted ID data is transmitted by the transmitting circuit unit. is doing.
At this time, the ID data is set to be transmitted intermittently and automatically at intervals of, for example, 0.2 seconds or more.

Next, the receiving device 5 includes at least the receiving antenna portions 5a and 5a for receiving the ID data and a receiving circuit portion inside a housing made of resin or the like, and a list of the received ID data and various ID data. It comprises a storage unit for storing other various data, programs, and the like, a power supply unit, and a microcomputer unit for controlling these units.
Further, a part of the receiving device 5 is provided with a connection unit for connecting the receiving device 5 and the host device.

  Furthermore, the power supply unit only needs to be able to obtain necessary power, for example, by supplying power from the heavy machinery 2 or from a rechargeable adapter, and is connected to the PLC device 7 which is a host device described later. Then, the power may be obtained together with the PLC device 7.

The host device refers to the PLC device 7, an input unit connected to the connection unit of the receiving device 5, a list of the ID data and various ID data received by the receiving device 5, other various data, And a storage unit for storing programs, an output unit for instructing operation to a notification device connected to the PLC device, a power supply unit 7a, and a control calculation unit for controlling these units.
The power supply unit 7a only needs to be able to obtain necessary power, for example, by supplying power from the heavy machinery 2 or from a rechargeable adapter.

  On the other hand, the list of ID data is a list of ID data corresponding to the worker 3a, ID data corresponding to the transport vehicle 3b, ID data corresponding to the other heavy equipment 3c, and the like. .

  Further, as shown in FIG. 1, the notification device 6 connected to the PLC device 7 emits a different light for each type of the approaching person 3 and a different sound for each type of the approaching person 3. An announcement unit 6b that emits light, and the approach information is constituted by at least one of light emitted by the lighting unit 6a and sound emitted by the announcement unit 6b.

  According to such a notification device 6, at least one of the light that is different for each type of the approaching person 3 and the sound that is different for each type of the approaching person 3 is notified by the notification device 6. This makes it possible for the operator of the heavy machine 2 to immediately recognize the type of the approaching person 3 approaching the heavy machine 2. As a result, the approach distance between the heavy machine 2 and the approaching person 3 can be grasped, and the contact between the heavy machine 2 and the approaching person 3 can be prevented in advance, and the safety can be improved. In addition, it is possible to smoothly advance the link work between the heavy machinery 2 and the approaching person 3, and the work efficiency can be improved.

  It should be noted that when different lights and sounds are emitted for each approaching person 3 in this way, the light / sound data stored inside the notification device 6 is set in response to an instruction from the PLC device 7. Has been.

  And as the reception procedure of the ID data by the receiving device 5, the ID data received by the receiving antenna units 5a and 5a and the receiving circuit unit are among a plurality of types of ID data stored in the storage unit, The type of approaching person 3 is recognized by the control of the microcomputer unit. Thereafter, the information is sent to the PLC device 7 through the connection unit.

  Next, as the instruction procedure to the notification device 6 by the PLC device 7, the received ID data information sent from the receiving device 5 to the input unit of the PLC device 7 is stored in the storage unit. Of the plurality of types of ID data, the type of approaching person 3 is recognized by the control of the control calculation unit. Thereafter, the information is sent as an instruction to the notification device 6 via the output unit.

Next, the notification device 6 notifies the approach information of light and sound by the lighting unit 6a and the announcement unit 6b based on the ID data information received from the PLC device 7.
In addition, the said lighting part 6a is color-coded for every kind of approaching person 3. FIG. At this time, for example, when the approaching person 3 is the worker 3a, the operator of the heavy equipment 2 can recognize it earlier by, for example, arranging the color in a highly urgent color.

  Further, even when no sound is heard due to noise or the like, the operator of the heavy machine 2 recognizes which type of approaching person 3 the approaching person 3 is by color-coding the lighting unit 6a. Will be able to. As a result, the safety can be further improved.

  Further, it is desirable that the receiving device 5, the PLC device 7, and the notification device 6 as described above are detachable from the heavy machine 2. If detachable as described above, it is possible to improve workability such as use at various construction sites or storing new data in the respective storage units.

  As described above, the receiving device 5, the notification device 6, and the PLC device 7 attached to the heavy machinery 2 allow the operator to quickly recognize the approaching person 3 approaching the heavy machinery 2. .

  Then, as shown in FIG. 2A, when the approaching person 3 is a worker 3a, the lighting unit 6a emits light for the worker 3a and emits sound for the worker 3a. It has become.

  As described above, when the approaching person 3 is the worker 3a, the operator of the heavy machinery 2 determines that the approaching person 3 is the worker 3a by the operation of the wireless tag 4, the receiving device 5, the notification device 6, and the like. Since it can be recognized promptly, the approach distance between the heavy machinery 2 and the worker 3a can be grasped, and the contact between the heavy machinery 2 and the worker 3a can be prevented in advance, thereby improving safety. It becomes possible.

  Further, as shown in FIG. 2B, when the approaching person 3 is the transport vehicle 3b, the lighting unit 6a emits light for the transport vehicle 3b and emits sound for the transport vehicle 3b. It has become.

And when the approaching person 3 is the transport vehicle 3b in this way, the operator of the heavy machinery 2 moves the approaching person 3 with the transport vehicle 3b by the operation of the wireless tag 4, the receiving device 5, the notification device 6, and the like. Since it can be recognized as soon as possible, the approach distance between the heavy equipment 2 and the transport vehicle 3b can be grasped, and the contact between the heavy equipment 2 and the transport vehicle 3b can be prevented in advance, thereby improving safety. It becomes possible.
Further, since the approach information can be used as a cue for the operator to recognize that the transport vehicle 3b that works together with the heavy machinery 2 has reached within a predetermined distance, the heavy machinery 2 and the transport vehicle 3b. As a result, it is possible to smoothly advance the linkage work and improve the work efficiency.

  In addition, as shown in FIG. 2C, when the approaching person 3 is another heavy machine 3c, the lighting unit 6a emits light for the other heavy machine 3c and the sound for the other heavy machine 3c. Is coming out.

When the approaching person 3 is another heavy machine 3c as described above, the operator of the heavy machine 2 moves the approaching person 3 to another heavy machine by the operation of the wireless tag 4, the receiving device 5, the notification device 6, and the like. 3c can be recognized as soon as possible, so that the approach distance between the heavy machine 2 and the other heavy machine 3c can be grasped, and contact between the heavy machine 2 and the other heavy machine 3c can be prevented in advance. Can be improved.
In addition, since the approach information can be used as a cue to make the operator recognize that another heavy machine 3c that works together with the heavy machine 2 has reached within a predetermined distance, Linkage work with the heavy machinery 3c can be smoothly advanced, and work efficiency can be improved.

On the other hand, when the heavy machinery 2 is a power shovel as described above, there is a case where work such as excavation of earth and sand and loading of the earth and sand into a transport vehicle 3b for earth and sand transportation such as a dump truck is frequently performed at a construction site. is there.
At this time, the receiving device 5 attached to the heavy machine 2 and the wireless tag 4 attached to the transport vehicle 3b may come closer than a predetermined distance. In such a case, since the notification device 6 is constantly informing the approach information during work, the transmission distance of the wireless tag 4 is adjusted.

  Then, by adjusting the transmission distance of the wireless tag 4 in this way, when the heavy machinery 2 and the transport vehicle 3b are closer than the predetermined distance, the notification device 6 may not be operated. It becomes possible. Accordingly, when the transport vehicle 3b approaches the heavy machine 2 and the work must be advanced, the notification device 6 does not continue to operate. Therefore, the transport vehicle that performs the work in and around the operator of the heavy machine 2 3b can work in a comfortable environment.

  In order to adjust the transmission distance of the wireless tag 4, although not shown, a predetermined function of the wireless tag 4 may be provided with a switch function, a function of adjusting the transmitted radio wave, and the like. At this time, it is desirable to cover the switch portion and adjustment portion for adjusting the transmission distance so that the transmission distance is not excessively shortened due to malfunction or the like.

  On the other hand, at the construction site, many workers 3a and many vehicles such as heavy machinery 2, 3c and transport vehicle 3b often perform work, and there are many approachers 3 around the heavy machinery 2. It may come closer.

  In such a case, since the receiving device 5 can simultaneously read a plurality of ID data emitted from the wireless tags 4 of the approaching persons 3, the operator of the heavy equipment 2 has a plurality of approaching persons 3 approaching the surroundings. This can be quickly recognized by the notification device 6. Accordingly, the operator of the heavy machine 2 can pay attention to the other approaching person 3 without being distracted only by the one approaching person 3, so that the heavy machine 2 and the plurality of approaching persons 3 It is possible to prevent the contact between the two and the safety can be improved.

  As described above, according to the heavy equipment approaching person alarm device 1 of the present embodiment, ID data for identifying the approaching person 3 is transmitted by the wireless tag 4, and this ID data is received by the receiving apparatus attached to the heavy equipment 2. 5 and further notifies the operator of the heavy machine 2 of the approach information based on the received ID data, so that the operator can quickly know the approach information of the approacher 3, and the heavy machine 2 and the approacher It is possible to grasp the approaching distance to 3 and prevent contact, and to improve safety.

  In addition, since the notification device 6 connected to the receiving device 5 can notify different approach information for each received ID data, the approach information can be sent to the transport vehicle 3b that works together with the heavy machinery 2 or the like. It can be used as a signal for allowing the operator to recognize that another heavy machine 3c or the like has reached within a predetermined distance. As a result, the link work between the heavy machine 2 and the transport vehicle 3b, the other heavy machine 3c, etc. can be smoothly advanced, so that the work efficiency can be improved.

  As described above, in this embodiment, the approaching person 3 having the wireless tag 4 is the worker 3a, the transport vehicle 3b, and the other heavy equipment 3c. However, the present invention is not limited to this. Goods may be used.

That is, when the heavy machinery 2 works around a nearby building, when the heavy machinery 2 approaches the building more than necessary, the notification device 6 is activated so that the heavy machinery 2 is operated. It is possible to quickly recognize that the operator is approaching the building, so that the approaching distance between the heavy machinery 2 and the building can be grasped and contact can be prevented, and safety can be further improved. It becomes possible.
In connection with this, the color classification of the said lighting part 6a may be increased, and the kind of sound of the said announcement part 6b may be increased.

Moreover, although the heavy machinery approaching person alarm device 1 of this Embodiment employ | adopts the unidirectional type which sends ID data from the said wireless tag 4 to the said receiving device 5, it is not restricted to this, For example, A signal may be transmitted from the receiving device 5 so that the wireless tag 4 can receive and broadcast the signal.
That is, it is desirable to provide a bidirectional heavy machine approaching person alarm device 1 by providing a transmission / reception circuit unit in both the wireless tag 4 and the receiving device 5 so that safety can be taken into consideration at the construction site. .

It is a block diagram which shows the heavy machine approaching person alarm device of this invention. It is explanatory drawing which shows the operation state of the alerting | reporting apparatus according to the kind of approaching person and every kind of approaching person, (a) is an approaching person when it is a worker, (b) is an approaching person with a transport vehicle. When there is, (c) shows a case where the approaching person is another heavy machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heavy machine approaching person alarm device 2 Heavy machine 3 Approaching person 3a Worker 3b Transportation vehicle 3c Other heavy machine 4 Radio tag 5 Receiver 6 Notification apparatus 6a Lighting part 6b Announcement part 7 PLC apparatus

Claims (7)

When a heavy machine and an approaching person approaching the heavy machine approach a predetermined distance at a construction site, the heavy machine approaching person alarm device that notifies the approaching person's approach information to the operator of the heavy machine,
A wireless tag that the approaching person has and transmits ID data for identifying the approaching person;
A receiving device attached to the heavy machinery and receiving the ID data;
A notification device connected to the receiving device and informing the approach information based on the received ID data;
The heavy equipment approaching person alarm device characterized in that the notification device notifies different approach information for each received ID data.   The heavy equipment approaching person alarm device according to claim 1, wherein the approaching person is a worker.   The heavy equipment approaching person alarm device according to claim 1, wherein the approaching person is a transport vehicle.   The heavy equipment approaching person alarm device according to claim 1, wherein the approaching person is another heavy equipment. The notification device includes a lighting unit that emits different light for each type of approaching person, and an announcement unit that emits different sound for each type of approaching person,
5. The access information is configured by at least one of light emitted by the lighting unit and sound emitted by the announcement unit. 6. Heavy equipment approaching alarm device.   The heavy equipment approaching person alarm device according to any one of claims 1 to 5, wherein a transmission distance of the wireless tag is adjustable.   The heavy equipment approaching person alarm device according to any one of claims 1 to 6, wherein the receiving device is capable of simultaneously reading a plurality of ID data.

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