JP2017082430A - Safety management system for construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety management system for a construction machine, the safety management system being capable of performing safety management on the basis of information transmitted from a non-contact communicator fitted to an intruder into a work site.SOLUTION: A safety management system for a construction machine includes a non-contact communicator 10 and a control unit 20 that receives identification information transmitted from the non-contact communicator 10 and, on the basis of the received identification information, performs safety management on a work site. The non-contact communicator 10 is fitted to an intruder into the work site and transmits identification information on the intruder as signal information. The control unit 20 includes: a lock signal generation unit 31 that generates a lock signal for disabling operation of the construction machine; warning signal generation units 33, 34 that generate a warning signal for issuing a warning; and stop signal generation units 35, 36 that generate a stop signal for stopping an engine or the like of the construction machine.SELECTED DRAWING: Figure 5

Description

The present invention relates to a construction machine safety management system, and more particularly to a construction machine safety management system that performs safety management based on information transmitted from a non-contact communication device.

At construction sites and construction sites, many construction machines such as bulltozas and backhoes are used. Since these construction machines are forced to perform various operations at work sites where the scaffolding is poor, many accidents have been reported due to the tilting or swinging of the vehicle body. For this reason, construction machines are equipped with various safety functions against abnormal tilting and swinging of the vehicle body. For the technology of such a construction machine, for example, the technology disclosed in Patent Document 1 is referred to.

JP 2006-096441 A

By the way, the accidents involving construction machines are not only the above-mentioned fall accidents, but also intruders entering the work site. More specifically, contact between the workers working at the work site and external visitors visiting the work site and the construction machine. Many accidents have been reported. In order to prevent such contact accidents, visual safety checks and thorough safety education are carried out every day at the work site. In order to realize the so-called “zero accident”, such safety checks and Safety education alone is not enough. In addition, there is a problem of unqualified operation by workers at the work site, and if an accident occurs due to unqualified operation, the user will be held a serious management responsibility, which is one of the management risks. It has become one. For this reason, thorough safety management relating to intruders at work sites such as workers and visitors is strongly desired.

This invention is made in view of the said situation, and provides the safety management system of the construction machine which can perform safety management based on the information of the intruder who invades the work site transmitted from a non-contact communication apparatus. For the purpose.

In order to achieve the above object, the invention of claim 1 according to a construction machine safety management system receives a non-contact communication device and information transmitted from the non-contact communication device, and based on the received information. A construction machine safety management system having a control unit that performs safety management at a work site, wherein the non-contact communication device stores information on an intruder entering the work site, and stores the information in the storage unit. The control unit has a receiving unit that receives the information on the intruder transmitted by the transmitting unit.

According to the present invention, the non-contact communication device has a storage unit that stores information on an intruder entering the work site, and a transmission unit that transmits information on the intruder stored in the storage unit, and controls the information. Since the unit has a receiving unit that receives intruder information transmitted by the transmitting unit, safety management is performed based on intruder information entering the work site transmitted from the non-contact communication device. Can do.

The control unit has a lock signal generation unit that generates a lock signal that disables the operation of the construction machine, and the lock signal generation unit generates the lock signal based on the intruder information received by the reception unit. For example, when the information of the intruder is a person who does not have the qualification to operate the construction machine, the person who does not have the qualification approaches the construction machine to disable the operation of the construction machine. Full control can be performed reliably, such as being able to prevent qualified driving (claim 2).

The control unit has an alarm signal generation unit that generates an alarm signal for issuing an alarm, and the alarm signal generation unit generates an alarm signal when the intruder enters the alarm distance. Based on the signal, an alarm can be issued when an intruder approaches the construction machine (claim 3).

The control unit has a stop signal generating unit that generates a stop signal for stopping the construction machine, and the stop signal generating unit stops if an intruder enters the stop distance and generates a stop signal. Based on the signal, the construction machine can be stopped by the approach of the intruder to the construction machine (claim 4).

If the stop distance is set to be shorter than the alarm distance, the construction machine can be stopped after issuing the alarm. That is, for example, after issuing an alarm, the construction machine driver can promptly perform a deceleration operation or a stop operation, so that a contact accident can be reliably prevented without a sudden stop (Claim 5). .

The alarm distance and stop distance are set by changing whether the intruder information transmitted by the non-contact communication device is a worker at the work site or not. For example, the warning distance and the stop distance can be set short, and the external visitor can be set long, so that the warning distance and the stop distance can be changed and set.

If the non-contact communication device is attached to a helmet mounted on the head, it is possible to easily distinguish between workers and visitors and individual workers.

ADVANTAGE OF THE INVENTION According to this invention, safety management can be performed based on the information of the intruder who invades the work site transmitted from a non-contact communication device.

It is a figure for demonstrating the whole structure of the safety management system of the construction machine which concerns on embodiment of this invention. It is a block diagram which shows the structure of the non-contact communication apparatus of the safety management system. It is a figure which shows the identification information memorize | stored in the memory | storage part of the non-contact communication device of the safety management system, (a) is a figure for demonstrating the identification information which shows an operator, (b) is the identification which shows a visitor. It is a figure for demonstrating information. It is a figure which shows the structure of the helmet with which the non-contact communication device of the safety management system was attached, (a) is a front view, (b) is a side view. It is a block diagram which shows the structure of the control unit of the safety management system. It is a figure which shows the data memorize | stored in the memory | storage part of the control unit of the safety management system. It is a figure which shows the structure of the lock mechanism of the safety management system, (a) is a figure which shows the state by which the lock mechanism was open | released, (b) is a figure which shows the state by which the lock mechanism was obstruct | occluded. It is a flowchart for demonstrating operation | movement of the control unit of the safety management system. It is a flowchart following FIG. 8 for demonstrating operation | movement of the control unit of the safety management system. It is a figure following FIG. 9 for demonstrating operation | movement of the control unit of the safety management system.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing an outline of the overall configuration of a safety management system 1 (hereinafter simply referred to as a safety management system 1) of a construction machine 100 showing an embodiment of the present invention. In the present invention, the construction machine 100 includes not only the construction machine 100 such as an aerial work vehicle and a crane but also the vehicle system construction machine 100.

The outline of the safety management system 1 of the present invention will be described with reference to FIG. 1. The safety management system 1 includes a non-contact communication device 10 and a control unit 20, and the non-contact communication device 10 uses a construction machine 100. Intruders who enter the work site, that is, workers who work at the work site (hereinafter, workers who work at the work site may be simply referred to as workers). And / or an external visitor who visits the work site (hereinafter, an external visitor who visits the work site may be simply referred to as a visitor). A machine 100 is provided. It is assumed that there are various types of driving methods for the construction machine 100 such as an engine type and an electric type.

The non-contact communication device 10 has a function of transmitting information on an intruder entering the work site as signal information, and can transmit predetermined signal information in a non-contact manner, that is, wirelessly. The non-contact communication device 10 is a non-contact communication tag, and more specifically, the non-contact communication tag is a Bluetooth (registered trademark) tag. As shown in FIG. 2, the non-contact communication device 10 includes a power source 11, a CPU, and a memory, and functions as a storage unit 12 and a transmission unit 13.

That is, the non-contact communication device 10 operates as a storage unit 12 and a transmission unit 13 with the CPU and memory operating when the power supply 11 is turned on, and the storage unit 12 stores information on intruders entering the work site, The transmission unit 13 transmits intruder information as signal information by performing a short-range wireless communication method, more specifically, by performing a wireless communication method defined by the Bluetooth (registered trademark) standard.

That is, as shown in FIG. 3, the storage unit 12 stores in advance identification information 14 for identifying an intruder at the work site, and the identification information 14 is stored in the work as shown in FIG. As shown in FIG. 3B, it includes identification information 14b indicating a visitor, and the identification information 14a is qualified to operate the construction machine 100. The information is classified into identification information 14c indicating that the person is a person who is performing and identification information 14d indicating that the person is not qualified to drive. In the present invention, it is assumed that the visitor is not qualified to drive, and the identification information 14b indicating the visitor is also recognized as identification information 14d indicating that the visitor is not qualified. The qualification for operating the construction machine 100 includes various licenses for operating the construction machine 100.

As shown in FIG. 4, the non-contact communication device 10 is attached to the helmet 110. The helmet 110 is mounted on the head and used at a work site, and the non-contact communication device 10 is attached to the inner surface side of the front portion of the helmet 110. The helmet 110 is divided into a worker and a visitor, and each worker has a helmet 110 individually. That is, by attaching the non-contact communication device 10 to the helmet 110, it is possible to easily distinguish between workers and visitors and individual workers, and by distinguishing individual workers, It is also possible to easily distinguish whether or not an individual is qualified to operate the construction machine 100. That is, in many work sites, the helmet 110 is generally distinguished from an operator or a visitor, or from each worker.

As shown in FIG. 5, the control unit 20 includes a first receiving unit 21, a second receiving unit 22, a distance calculating unit 23, a storage unit 24, a determining unit 25, a signal generating unit 30, a lock mechanism 40, and a switch. A mechanism 50 is provided.

The first receiving unit 21 has a function of receiving an engine on / off signal for the engine-type construction machine 100 and an on / off signal for a power source for driving the construction machine 100 for the electric construction machine 100. Yes. The construction machine 100 is provided with a drive mechanism 100a of an engine or a power source (hereinafter, the engine or power source is referred to as an engine or the like), and an on / off signal of the engine or the like is transmitted from the drive mechanism 100a.

The second receiving unit 22 has a function of receiving the identification information 14 transmitted from the non-contact communication device 10. That is, the second receiving unit 22 functions as a short-range wireless communication unit that performs short-range wireless communication with the non-contact communication device 10 and includes a Bluetooth (registered trademark) function. That is, the second receiving unit 22 can perform wireless communication defined by the Bluetooth (registered trademark) standard with the non-contact communication device 10. The second receiving unit 22 includes a reader of a contactless communication tag, for example.

The distance calculating unit 23 is based on the distance between the non-contact communication device 10 (intruder) and the construction machine 100 based on the intensity of the signal transmitted from the non-contact communication device 10 and received by the first reception unit 22. Specifically, it has a function of calculating a distance 23a between the control unit 20 and the second receiving unit 22 (hereinafter, the distance 23a may be referred to as a calculation distance 23a).

As shown in FIG. 6, the storage unit 24 is set as identification information 14 for identifying an intruder at the work site, more specifically from the construction machine 100 as a certain distance from the second receiving unit 22 of the control unit 20. The lock control distance 15, the alarm distance 16, and the stop distance 17 are stored in advance.

The identification information 14 stored in the storage unit 24 includes the identification information 14a indicating the worker and the identification information 14b indicating the visitor as described above, and the identification information 14a indicating the worker further drives the construction machine 100. It is divided into identification information 14c indicating that the person is qualified and identification information 14d indicating that the person is not qualified to drive.

The lock control distance 15 is set as a fixed distance from the construction machine 100, and when a person who is not qualified to operate the construction machine 100 enters the lock control distance 15, the operation of the construction machine 100 is disabled. It is defined as the distance that allows the construction machine 100 to be operated when a person qualified to drive enters.

The alarm distance 16 is set as a certain distance from the construction machine 100 and is defined as a distance at which an alarm is issued when an intruder enters the alarm distance 16. The alarm distance 16 includes a first alarm distance 16a that generates an alarm when a visitor enters and a second alarm distance 16b that generates an alarm when an operator enters.

The stop distance 17 is set as a fixed distance from the construction machine 100 and is set to a distance shorter than the alarm distance 16, and is a distance for stopping the construction machine 100 when an intruder enters the stop distance 17. Defined. The stop distance 17 includes a first stop distance 17a that stops the construction machine 100 when a visitor enters, and a second stop distance 17b that stops the construction machine 100 when an operator enters.

That is, the alarm distance 16 and the stop distance 17 are changed and set depending on whether or not the worker is at the work site. That is, the worker is familiar with the situation at the work site. In the present invention, the second warning distance 16b and the second stop distance 17b for the worker are the first warning distance 16a and the second warning distance for the visitor. The distance is set to be relatively shorter than one stop distance 17a. The alarm distance 16 and the stop distance 17 may be changed and set depending on the type of the construction machine 100.

The determination unit 25 reads out the identification information 14 stored in advance in the storage unit 24, and an intruder at the work site works as an operator based on the read identification information 14 and the identification information 14 received by the second reception unit 22. Or a visitor, and whether or not the person is qualified to operate the construction machine 100.

The determination unit 25 reads the lock control distance 15, the alarm distance 16, and the stop distance 17 stored in advance in the storage unit 24, and calculates the read lock control distance 15, alarm distance 16, and stop distance 17 and the calculated distance. 23a, and has a function of determining whether or not the calculation distance 23a is within the distances 15, 16, and 17.

Further, the determination unit 25 has a function of determining whether the engine or the like is on or off based on the on / off signal of the engine or the like received by the first reception unit 21.

The signal generation unit 30 has a function of generating a signal for performing safety management based on the determination result by the determination unit 25. The signal generator 30 includes a lock signal generator 31, a lock release signal generator 32, a first alarm signal generator 33, a second alarm signal generator 34, a first stop signal generator 35, and a second stop. A signal generator 36 is included.

The lock signal generation unit 31 has a function of generating a lock signal based on the intruder information received by the second reception unit 22. More specifically, the lock signal generation unit 31 is qualified to drive the construction machine 100 within the lock control distance 15 in more detail when the determination unit 25 determines that the calculation distance 23a is within the lock control distance 15. It has a function of generating a lock signal that disables the operation of the construction machine 100 when it is determined that an intruder has entered. The generated lock signal is transmitted to the lock mechanism 40 shown in FIG. 7 to disable the operation of the engine or the like. That is, the lock mechanism 40 has an open / close lid 43 that opens and closes a key insertion portion 42 for inserting a key 41 such as an engine, and can close the open / close lid 43 as shown in FIG. 7B based on a lock signal. .

The unlock signal generation unit 32 has a function of generating an unlock signal based on the intruder information received by the second receiver 22. More specifically, the lock release signal generation unit 32 has a qualification to drive the construction machine 100 within the lock control distance 15, more specifically, when the determination unit 25 determines that the calculation distance 23 a is within the lock control distance 15. It has a function of generating a lock release signal that enables the operation of the construction machine 100 when it is determined that the person who has entered has entered. The generated lock release signal is transmitted to the lock mechanism 40 shown in FIG. 7 to enable operation of the engine or the like. That is, the lock mechanism 40 can open the open / close lid 43 as shown in FIG. 7B based on the lock release signal.

The lock signal generation unit 31 and the lock release signal generation unit 32 generate a lock signal and a lock release signal when the determination unit 25 determines that the engine or the like is off. That is, when the determination unit 25 determines that the engine or the like is on, it is determined that a person qualified to operate the construction machine 100 is operating properly, and in such a case, the lock mechanism 40 operates. It is considered not to be.

When the determination unit 25 determines that the calculation distance 23a is within the first alarm distance 16a, the first alarm signal generation unit 33 determines in more detail that the visitor has entered the first alarm distance 16a. Sometimes it has a function of generating a first alarm signal.

When the determination unit 25 determines that the calculation distance 23a is within the second alarm distance 16b, the second alarm signal generation unit 34 determines in more detail that the operator has entered the second alarm distance 16b. Sometimes it has a function of generating a second alarm signal. The first alarm signal and the second alarm signal generated by the first alarm signal generation unit 33 and the second alarm signal generation unit 34 are transmitted to the alarm drive mechanism 200 of the construction machine 100 and a buzzer is issued. An alarm is displayed on a predetermined display device.

When the determination unit 25 determines that the calculation distance 23a is within the first stop distance 17a, the first stop signal generation unit 35 determines in more detail that the visitor has entered the first stop distance 17a. Sometimes it has a function of generating a first stop signal.

When the determination unit 25 determines that the calculation distance 23a is within the second stop distance 17b, the second stop signal generation unit 36 determines in more detail that the operator has entered the second stop distance 17b. Sometimes it has a function of generating a second stop signal.

The first stop signal and the second stop signal generated by the first stop signal generation unit 35 and the second stop signal generation unit 36 are transmitted to the switch mechanism 50 that turns on and off the engine of the construction machine 100, and the like. The switch mechanism 50 can be turned off by transmitting the stop signal. The switch mechanism 50 is configured by a predetermined electric circuit.

The alarm signal generation units 33 and 34 and the stop signal generation units 35 and 36 generate an alarm signal and a stop signal when the determination unit 25 determines that the engine or the like is on. That is, when the determination unit 25 determines that the engine or the like is off, it determines that there is no need to perform an alarm operation or a stop operation because the construction machine 100 is not in operation. In addition, when an engineer or the like is in an operating state where an engineer is in a driver's cab more specifically than an intruder, in order to prevent the operating state from being hindered, The control unit 20 is configured so that an alarm signal and a stop signal are not generated based on signal information from the non-contact communication device 10 provided to those in the cab.

Next, the operation flow by the safety management system 1 will be described based on the flowcharts of FIGS.
That is, in step S10, the first receiving unit 21 receives an on / off signal of the engine etc. from the driving mechanism 100a such as the engine, and the judging unit 25 turns on / off the engine etc. based on the on / off signal of the engine etc. Determine whether. When the determination unit 25 determines that the engine or the like is on, the process proceeds to step 100, performs the alarm stop operation of step S100 to step S170 and step S200 to step S230, and when the engine or the like is determined to be off, step S20 to The lock operation or unlock operation of step S70 is performed.

That is, in step S <b> 20, the determination unit 25 reads the identification information 14 and the lock control distance 15 stored in advance in the storage unit 24.
Subsequently, in step S <b> 30, the determination unit 25 determines whether the second reception unit 22 has received the identification information 14 from the non-contact communication device 10. When the determination unit 25 determines that the identification information 14 has been received, the distance calculation unit 23 is contactless based on the strength of the signal indicating the identification information 14 received by the second reception unit 22 in step S40. The distance 23a between the communication device 10 and the construction machine 100 is calculated.

Next, in step S50, the determination unit 25 determines whether or not an intruder has entered the lock control distance 15 based on the lock control distance 15 read in step S20 and the calculated distance 23a calculated in step S40. to decide. When the determination unit 25 determines that the intruder has entered the lock control distance 15, the determination unit 25 determines in step S60 based on the identification information 14 received in step S30 and the read identification information 14. The received intruder identification information 14 is identification information 14c indicating a person who is qualified to drive the construction machine 100 or identification information 14b and 14d indicating a person who is not qualified to drive the construction machine 100. Determine if there is.

When the determination unit 25 determines that the intruder identification information 14 is identification information 14b and 14d indicating a person who is not qualified to drive, the lock signal generation unit 31 outputs a lock signal in step S70. And the lock mechanism 40 is closed to close the locking operation (more specifically, when the open / close lid 43 is in the open state, the open state is shifted to the closed state, and when the open / close lid 43 is in the closed state). Maintains the closed state and ends the locking operation).

On the other hand, when the determination unit 25 determines in step S60 that the intruder identification information 14 is identification information 14c indicating a person qualified to drive, in step S80, the lock release signal generation unit. 32 generates a lock release signal, and opens and closes the open / close lid 43 of the lock mechanism 40 to complete the unlocking operation (more specifically, when the open / close lid 43 is in the closed state, the state is shifted from the closed state to the open state, When the lid 43 is open, the open state is maintained and the unlocking operation is terminated).

Next, the alarm stop operation shown in FIGS. 9 and 10 will be described.
That is, in step S <b> 100, the determination unit 25 reads the identification information 14, the alarm distance 16, and the stop distance 17 stored in advance in the storage unit 24.

Next, in step S <b> 110, the determination unit 25 determines whether the second reception unit 22 has received the identification information 14 from the non-contact communication device 10. When the determination unit 25 determines that the identification information 14 has been received, the distance calculation unit 23 is contactless based on the strength of the signal indicating the identification information 14 received by the second reception unit 22 in step S120. The distance 23a between the communication device 10 and the construction machine 100 is calculated.

Subsequently, in step S130, based on the identification information 14 received in step S110 and the identification information 14 read in step S100, the determination unit 25 receives the identification information 14b indicating the visitor. It is determined whether or not. When the determination unit 25 determines that the identification information 14b indicates a visitor, in step S140, the determination unit 25 determines the alarm distance 16 read in step S100 and the calculation distance 23a calculated in step S120. Then, it is determined whether or not the visitor has entered the first alarm distance 16a. When the determination unit 25 determines that the visitor has entered the first alarm distance 16a, in step S150, the first alarm signal generation unit 33 generates the first alarm signal, and the alarm driving mechanism. 200 is operated, a buzzer is issued, and an alarm is displayed.

Next, in step S <b> 160, the determination unit 25 determines whether or not the visitor has entered the first stop distance 17. When the determination unit 25 determines that the vehicle has entered, in step S170, the first stop signal generation unit 35 generates the first stop signal, turns off the switch mechanism 50, and turns off the engine and the like. To do.

On the other hand, as described above, in step S130, when the determination unit 25 determines that the received identification information 14 is not the identification information 14b indicating the visitor, that is, the received identification information 14 indicates the identification information 14a indicating the worker. Is determined, the determination unit 25 proceeds to step S200, and the determination unit 25 determines that the worker is within the second alarm distance 16b based on the alarm distance 16 read in step S100 and the calculation distance 23a calculated in step S120. To determine whether or not

When the determination unit 25 determines that the operator has entered the second alarm distance 16b, in step S210, the second alarm signal generation unit 34 generates a second alarm signal, and the alarm driving mechanism. 200 is operated, a buzzer is issued, and an alarm is displayed.

Subsequently, in step S220, the determination unit 25 determines whether the operator has entered the second stop distance 17b. When the determination unit 25 determines that it has entered, in step S230, the second stop signal generation unit 36 generates the second stop signal, turns off the switch mechanism 50, and turns off the engine and the like. To do.

As described above, according to the present invention, the non-contact communication device 10 includes the storage unit 12 that stores the identification information 14 of the intruder entering the work site, and the identification information of the intruder stored in the storage unit 12. 14, and the control unit 20 includes the receiving unit 22 that receives the intruder identification information 14 transmitted by the transmitting unit 13. Safety management can be performed based on the identification information 14 of the intruder.

That is, the control unit 20 includes a lock signal generation unit 31 that generates a lock signal that disables the operation of the construction machine 100, and the lock signal generation unit 31 receives the intruder identification information 14 received by the reception unit 22. Therefore, when the intruder identification information 14 indicates a person who does not have the qualification to operate the construction machine 100, the person who does not have the qualification approaches the construction machine 100. Thus, it is possible to reliably perform complete management, such as disabling operation of the construction machine 100 and preventing unauthorized operation.

In addition, since the control unit 20 includes the alarm signal generation units 33 and 34 that generate an alarm signal when an intruder enters the alarm distance 16, the control unit 20 further includes the alarm signal generator 33 and 34 within the stop distance 17. Since the stop signal generators 35 and 36 for generating a stop signal for stopping the construction machine 100 when an intruder enters the vehicle, the alarm is issued when the intruder approaches the construction machine 100, or the construction machine 100 can be stopped.

Furthermore, since the stop distance 17 is set to a distance shorter than the alarm distance 16, the construction machine 100 can be stopped after issuing an alarm. That is, for example, the driver of the construction machine 100 can promptly perform a deceleration operation or a stop operation after issuing an alarm, so that it is possible to reliably prevent a contact accident without a sudden stop. In addition, it is possible to prevent a fall accident of the construction machine 100 due to a sudden stop.

The present invention is not limited to the above-described embodiments, and various modifications and application can be made without departing from the scope of the claims.
For example, in the above-described embodiment, both the alarm operation and the stop operation are performed in the on state of the engine or the like, but only one of the alarm operation and the stop operation may be performed. Good.

In the above-described embodiment, the alarm distance 16 and the stop distance 17 are changed and set depending on whether the person is a worker or a visitor. The same distance may be set by the person. In this case, the signal indicating the intruder identification information 14 transmitted by the non-contact communication device 10 is simply a signal indicating whether or not an intruder exists.

Further, in the embodiment described above, the lock mechanism 40 has the opening / closing lid 43 that opens and closes the key insertion portion 42 for inserting the key 41 such as the engine, and performs the locking operation. A configuration similar to that of the switch mechanism 50 may be adopted as the lock mechanism 40 to perform the locking operation.

Furthermore, in the above-described embodiment, the non-contact communication device 10 is attached to the helmet 110. However, for example, an intruder at the work site may wear it as a card type.

Furthermore, in the above-described embodiment, the short-range wireless communication method is a method defined by the Bluetooth (registered trademark) standard, but it is performed using the WiFi function, It can also be performed using a range wireless communication system.

The present invention greatly contributes to safety management at a work site by providing a safety management system for a construction machine that performs safety management based on information transmitted from a non-contact communication device.

1: safety management system, 10: contactless communication device, 11: power supply, 12: storage unit, 13: transmission unit, 14: identification information, 14a: identification information (identification information indicating an operator), 14b: identification information ( Identification information indicating a visitor and identification information indicating that the person is not qualified to drive), 14c: identification information (identification information indicating that the worker is qualified to drive) ), 14d: identification information (identification information indicating that the worker is not qualified to drive), 15: lock control distance, 16: alarm distance, 16a: first alarm distance, 16b: Second alarm distance, 17: Stop distance, 17a: First stop distance, 17b: Second stop distance, 20: Control unit, 21: First receiver, 22: Second receiver, 23: Distance calculation unit, 24: storage unit, 25: determination unit, 0: signal generation unit, 31: lock signal generation unit, 32: lock release signal generation unit, 33: first alarm signal generation unit, 34: second alarm signal generation unit, 35: first stop signal generation unit 36: second stop signal generation unit, 40: lock mechanism, 41: key for engine, 42: key insertion unit, 43: open / close lid, 50: switch mechanism, 100: construction machine, 100a: engine for construction machine 110: Helmet, 200: Alarm drive mechanism

Claims (7)

A construction machine safety management system comprising: a non-contact communication device; and a control unit that receives information transmitted from the non-contact communication device and performs safety management of a work site based on the received information.
The non-contact communication device has a storage unit that stores information on an intruder entering the work site, and a transmission unit that transmits information on the intruder stored in the storage unit, and the control unit includes: A construction machine safety management system comprising: a receiving unit configured to receive the intruder information transmitted by the transmitting unit. The control unit includes a lock signal generation unit that generates a lock signal that disables the operation of the construction machine, and the lock signal generation unit is configured based on the intruder information received by the reception unit. The construction machine safety management system according to claim 1, wherein a lock signal is generated. The control unit includes an alarm signal generation unit that generates an alarm signal for issuing an alarm, and the alarm signal generation unit generates the alarm signal when the intruder enters within an alarm distance. The safety management system for a construction machine according to claim 1. The control unit includes a stop signal generation unit that generates a stop signal for stopping the construction machine, and the stop signal generation unit generates the stop signal when the intruder enters within a stop distance. The safety management system for a construction machine according to claim 1. The construction machine safety management system according to claim 4, wherein the stop distance is set to a distance shorter than the warning distance. 6. The warning distance and the stop distance are set by changing whether or not the intruder information transmitted by the non-contact communication device is an operator at the work site. The construction machine safety management system described in 1. The construction machine safety management system according to claim 1, wherein the non-contact communication device is attached to a helmet mounted on a head.

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