Safety support device, safety support system, safety support method, and program

Abstract

To provide a safety measure supporting device capable of having on-site workers carry out a safety measure before the stage to need to finish a safety measure work.SOLUTION: A safety measure supporting device 2 according to the present embodiment has a state acquisition part 400 to acquire the state that the running device power of a high-place working vehicle 3 can be transferred to a facility 36 for a high-place work, a cover detection part 402, and a determination part 404 to determine the execution presence / absence for the safety measure at the corresponding timing to when the opening of an operation cover 360A is detected by the cover detection part 402, where the cover detection part detects the opening of the operation cover 360A covering the operation part of a control board 360 to operate the high-place work facility 36 as the condition that can transfer the power to the high-place work facility 36.SELECTED DRAWING: Figure 2

Description

Technical Field

[0004] ,

[0001] The present invention relates to a safety measure support device, a safety measure support system, a safety measure support method, and a program.

Background Art

[0002] For example, Patent Document 1 discloses a safety device for a work vehicle including jacks that support the vehicle body on the ground on the front, rear, left, and right sides of the vehicle body, the safety device including: an inclination detection means for detecting that the vehicle body is inclined at a predetermined angle or more in a front-up state; an operation detection means for detecting that an operation for operating the jack has been performed; and an alarm means for performing a predetermined alarm operation when the detection by the operation detection means is made when the detection by the inclination detection means is made, which is characterized by being composed of these components.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a safety measure support device capable of causing on-site workers to implement safety measures until a stage where safety measure work should be completed.

Means for Solving the Problems

[0005] The safety support device according to the present invention includes a state acquisition unit that acquires whether the power of the running gear of a work vehicle is in a state where it can be transmitted to work equipment; a cover detection unit that detects when the operating cover covering the operating part of the operating device for operating the work equipment has been opened, provided that the vehicle is in a state where it can be transmitted to the work equipment; and a determination unit that determines whether or not safety measures have been implemented at a timing corresponding to when the cover detection unit detects that the operating cover has been opened.

[0006] Preferably, the detection unit detects that the operating cover has been opened at a timing corresponding to the fact that power can be transmitted to the work equipment.

[0007] Preferably, the work vehicle is an aerial work platform equipped with work equipment for performing work at height, the safety measures include on-site safety measures for the aerial work platform and on-site workers, and the installation of facilities at the work site, and further comprises a warning unit that issues a warning if the safety measures are not implemented based on the determination result determined by the determination unit, and a warning means selection unit that selects a warning means to be issued by the warning unit based on the time of work at the work site, and the warning unit issues a warning using the warning means selected by the warning means selection unit.

[0008] Preferably, the warning means selection unit, based on the detection result detected by the cover detection unit, selects a warning means other than an audible warning means outside the work vehicle if the time from opening the operation cover to closing it is within a predetermined time.

[0009] Preferably, the installation of the facility includes the installation of a marker facility, further comprising a wireless device provided on the marker facility that transmits radio waves, and a notification unit that notifies the location to install the marker facility at a timing corresponding to when the work vehicle and the marker facility are at a predetermined distance from each other, wherein the determination unit determines, based on the received strength of the radio waves transmitted from the wireless device, that the location is for installing the marker facility if the received strength of the radio waves is below a predetermined threshold.

[0010] Preferably, the status acquisition unit acquires that the power of the running gear of the work vehicle cannot be transmitted to the work equipment, and the determination unit, at a timing corresponding to when it acquires that the power cannot be transmitted to the work equipment, determines that the indicator facility has not been retrieved based on the received strength of the radio waves transmitted from the wireless device, if the received strength of the radio waves is below a predetermined threshold.

[0011] The work equipment includes outriggers, the on-site safety measures include the installation of wheel chocks on the work vehicle, and the control unit further controls the extension of the outriggers based on a determination result by the determination unit that at least the installation of the wheel chocks has not been carried out.

[0012] Furthermore, the safety support system according to the present invention includes a state acquisition unit that acquires whether the power of the running gear of the work vehicle is in a state where it can be transmitted to the work equipment; a cover detection unit that detects when the operating cover covering the operating part of the operating device for operating the work equipment has been opened, provided that the vehicle is in a state where it can be transmitted to the work equipment; and a determination unit that determines whether or not safety measures have been implemented at a timing corresponding to when the cover detection unit detects that the operating cover has been opened.

[0013] Furthermore, the safety support method according to the present invention includes the steps of: acquiring that the power of the running gear of a work vehicle is in a state where it can be transmitted to work equipment; detecting that the operating cover covering the operating part of the operating device for operating the work equipment has been opened, provided that the vehicle is in a state where it can be transmitted to the work equipment; and determining whether or not safety measures have been implemented at a timing corresponding to the detection that the operating cover has been opened.

[0014] Furthermore, the program according to the present invention causes a computer to perform the following steps: acquire that the power of the running gear of the work vehicle is in a state where it can be transmitted to the work equipment; detect that the operating cover covering the operating part of the operating device for operating the work equipment has been opened, provided that the power can be transmitted to the work equipment; and determine whether or not safety measures have been implemented at a timing corresponding to the detection that the operating cover has been opened. [Effects of the Invention]

[0015] According to the present invention, safety measures can be implemented by on-site workers by the time the safety measures work is to be completed. [Brief explanation of the drawing]

[0016] [Figure 1] This figure illustrates an overview of the safety support system 1 in this embodiment. [Figure 2] This diagram provides a detailed explanation of the configuration of Safety Measures Support System 1. [Figure 3] This diagram illustrates the hardware configuration of the safety support device 2. [Figure 4] This diagram illustrates the functional configuration of the safety support device 2. [Figure 5] This diagram illustrates the functional configuration of the safety detection unit 403. [Figure 6] This is a flowchart explaining the safety measures support process (S10). [Figure 7] This is a flowchart explaining the safety measures support process (S20). [Figure 8] This is a flowchart explaining the safety measures support process (S30). [Figure 9] This is a flowchart explaining the safety measures support process (S40). [Figure 10] This is a flowchart explaining the safety measures support process (S50). [Figure 11] This is a flowchart explaining the safety measures support process (S60).

Best Mode for Carrying Out the Invention

[0017] First, the background of the present invention will be described. Among special work vehicles, about 20,000 aerial work platforms are in operation nationwide and are widely used at high-altitude work sites. Not only in the communication construction industry, but also, for example, in pruning of garden trees, construction work, industrial installation, equipment inspection, building maintenance, shipbuilding, electric power, municipal administration, airports, or traffic, etc., it extends over a wide range to high-altitude work sites. At the work site of high-altitude work, before performing high-altitude work, for example, it is necessary to implement safety measures such as confirmation of the parking angle of the aerial work platform, installation of wheel chocks, installation of construction notice boards, installation of safety facilities (safety cones and cone bars), and hooking of the lanyard hook (so-called safety belt hook) of the fall prevention device (so-called safety belt). However, some on-site workers may not be able to implement safety measures under appropriate conditions, and as a result, it has become a cause of serious accidents such as rollovers and runaway accidents of aerial work platforms.

[0018] As countermeasures, for example, safety guidance at the work site by managers, etc. (implementation of safety patrols) and double safety confirmation by the person in charge of grasping safety work and the on-site worker are carried out. However, although it is preferable to carry out the above safety measures for each work site, when the number of managed aerial work platforms is large, for example, 200 or more, it is difficult to thoroughly implement this, and it takes time and effort for both the person in charge of grasping safety work and the on-site worker, which becomes a work burden. Therefore, the embodiments of the present invention have been created from the above viewpoints. According to the embodiments of the present invention, safety measures can be thoroughly implemented by making on-site workers implement safety measures until the stage where on-site workers should finish safety measure work. Also, at the stage after finishing the safety measure work, by automatically notifying the person in charge of grasping safety work of the results of the implemented safety measures, the work burden can be reduced. Hereinafter, such embodiments of the present invention will be described with reference to the drawings.

[0019] First, please refer to Figures 1 and 2 to explain the overview of Safety Measures Support System 1. Figure 1 is a diagram illustrating an overview of the safety support system 1 in this embodiment. Figure 2 is a diagram illustrating the configuration of the safety support system 1 in detail. As illustrated in Figures 1 and 2, the safety support system 1 connects the aerial work platform 3 at the work site to the management server 9 at the site operations management center via a wired or wireless network 8, enabling information communication. Similarly, the portable information terminal used by the site worker W is also connected to the management server 9 via the network 8. In this example, the network 8 includes a closed network and a VPN network within the site operations management center. At the work site, the site worker W implements safety measures before performing work at height. Here, the implementation of safety measures includes the implementation of on-site safety measures for the aerial work platform 3 or the site worker W, and the installation of facilities 7 at the work site. On-site safety measures for the aerial work platform 3 include, for example, the application of the parking brake, the implementation of an appropriate parking angle when parking the aerial work platform 3, the installation of wheel chocks 54, and the implementation of ground clearance (wheels off the ground). On-site safety measures for the site worker W include the application of the lanyard hook of the fall arrest device. The installation of facilities 7 at the work site includes the installation of a signage facility 70 and the installation of a safety facility 72. The installation of the signage facility 70 is the installation of a construction notice sign 700 at an appropriate distance from the aerial work platform 3. Furthermore, the installation of safety facilities 72 refers to the installation of safety cones 726, cone bars 727, and arrow signs 728 to create a no-entry zone surrounding the work area of ​​the aerial work platform 3. The aerial work platform 3 is equipped with a safety support device 2. The safety support device 2 determines whether or not safety measures that should be taken before performing work at height have been implemented, and transmits the determination result to the management server 9. The management server 9, located in the field operations management center, then records the determination result regarding the implementation of safety measures sent from the safety support device 2. The safety measures assessment officer M checks the determination result regarding the implementation of safety measures transmitted to the management server 9 and contacts the field worker W to notify them of permission to perform work at height.

[0020] As illustrated in Figures 1 and 2, the safety support system 1 includes a safety support device 2, an aerial work platform 3, a facility 7, a network 8, and a management server 9. The safety support device 2 is an information processing device that determines whether or not safety measures that should be taken before performing work at height have been implemented. The safety support device 2 determines whether or not safety measures have been properly implemented on site for the aerial work platform 3 or the site worker W, and for the installation of facilities 7 at the work site. It notifies the site worker W of the determination result and also transmits the determination result to the management server 9. In addition, if the determination result is that the safety measures have not been properly implemented (i.e., not implemented or insufficiently implemented), the safety support device 2 will alert the site worker W. The safety support device 2 may also prompt the site worker W to re-implement the safety measures after the alert. In this example, the safety support device 2 is installed on the aerial work equipment 36, but it is not limited to this location, and the installation location can be changed as appropriate.

[0021] The aerial work platform 3 is a special work vehicle and is an example of a work vehicle according to the present invention. The aerial work platform 3 includes a running gear and aerial work equipment 36. The running gear is equipped with a parking brake 30, a PTO device operating lever 32, a vehicle body angle detection device 34, and an in-vehicle speaker 368C. The in-vehicle speaker 368C will be described later in relation to the notification device 368.

[0022] The parking brake 30 is a braking mechanism for maintaining the stationary state of the aerial work platform 3 when parked, and can be a stick-type, lever-type, foot-operated, or electric brake. In this example, the parking brake 30 is a lever-type and is also referred to as a handbrake. The parking brake 30 is connected to the safety support device 2 via wiring to transmit information, and notifies the safety support device 2 of the potential difference or current difference corresponding to the ON / OFF operation of the parking brake 30. In this example, the parking brake 30 notifies the safety support device 2 of the potential difference corresponding to the ON / OFF operation of the parking brake 30.

[0023] The PTO device operating lever 32 (hereinafter referred to as PTO lever 32) is the operating lever for the PTO (Power Take-Off) device, and is a device that enables the power of the travel mechanism of the aerial work platform 3 to be transmitted to the aerial work equipment 36. The potential difference corresponding to the ON / OFF operation of the PTO lever 32 is notified to the safety support device 2. The vehicle body angle detection device 34 is a device that measures the tilt of the aerial work platform 3 when it is parked, and is, for example, a tilt sensor, an angular velocity sensor, or an acceleration sensor. The detection result detected by the vehicle body angle detection device 34 is notified to the safety support device 2.

[0024] Furthermore, the equipment 36 for working at heights includes a control panel 360, a wheel chock detection device (not shown), a ground clearance detection device (not shown), an outrigger 362, a hook attachment detection device 364, a security camera 365, and a notification device 368. The control panel 360 is an operating device that includes, for example, an operating section for extending and retracting the outriggers 362, and for jacking up and jacking down, and is an example of an operating device according to the present invention. The control panel 360 includes an openable and closable operating cover 360A and an operating cover open / close sensor 361 (hereinafter referred to as the open / close sensor 361) that detects the opening and closing of the operating cover 360A. The open / close sensor 361 detects the opening and closing of the operating cover 360A and notifies the safety support device 2 of the detected detection result. The control panel 360 includes an operating button or lever for stopping the engine of the travel device. The wheel chock detection device is a device that detects wheel chocks 54 installed on both the front and rear sides of the contact surface in the direction of rotation of the wheels of the aerial work platform 3, and is, for example, a camera or a sensor. The wheel chock detection device may be installed on all wheels of the aerial work platform 3, or it may be installed only on the left and right front wheels or only on the left and right rear wheels of the aerial work platform 3. The wheel chock detection device detects the installed wheel chocks 54 and notifies the safety support device 2 of the detection result. In this example, the wheel chock detection device detects a pair of wheel chocks 54A installed on the left rear wheel and a pair of wheel chocks 54B (not shown) installed on the right rear wheel of the aerial work platform 3 and notifies the safety support device 2 of the detection result.

[0025] Outrigger 362 is equipment used to prevent the parked aerial work platform 3 from tipping over when it is jacked up. In this example, outrigger 362 is an H-type outrigger. The ground clearance detection device is a detection device that detects whether or not the wheels have lifted off the ground as the body of the aerial work platform 3 rises due to the jacking up of the outriggers 362. For example, it is a camera or a sensor. The ground clearance detection device notifies the safety support device 2 of the detection result.

[0026] The hook-attachment detection device 364 is a sensor that detects whether the lanyard hook of the fall protection device worn by the field worker W, who is standing on the bucket section which functions as a work platform, is attached to a fixed part at a predetermined position. For example, it can be a non-contact or contact sensor, such as a pressure sensor, an optical sensor, or a magnetic sensor. In this example, the hook-attachment detection device 364 is a magnetic sensor and detects magnetic information corresponding to the state in which the lanyard hook is attached to the fixed part, or magnetic information corresponding to the state in which the lanyard hook is not attached to the fixed part. In addition, the hook-attachment detection device 364 may be combined with a human presence sensor that detects when the field worker W is standing on the bucket section in order to sense the hook-attachment status. The hook-attachment detection device 364 notifies the safety support device 2 of the detection result. The security facility camera 365 is a camera that captures images of the installation status of the security facility 72 located directly below the bucket section, and is capable of capturing still images or videos. The security facility camera 365 notifies the safety support device 2 of the captured images taken directly below the bucket section.

[0027] The notification device 368 is a notification means that notifies the on-site worker W based on the warning or notification content notified by the safety support device 2. The notification device 368 notifies the on-site worker W of warnings or notifications regarding the application of the parking brake 30, the application of the proper vehicle angle when parking, the installation of wheel chocks 54, the installation of the construction notice sign 700, the application of the lanyard hook, and the installation of the facility 7, as well as warnings and notifications regarding the removal of the wheel chocks 54 and the construction notice sign 700. The notification device 368 provides warnings or notifications by sound or light. The notification device 368 includes a warning light 368A that provides warnings or notifications by light, and an external speaker 368B and an internal speaker 368C that provide warnings or notifications by sound or voice. Warning light 368A is an indicator light that emits light and is connected to the safety support device 2 by wire or wireless connection. Warning light 368A includes a warning light for the right rear wheel stopper, a warning light for the left rear wheel stopper, a warning light for construction notice sign 700A, and a warning light for construction notice sign 700B. The exterior speaker 368B and the interior speaker 368C are speakers installed inside and outside the aerial work platform 3, respectively, and are connected to the safety support device 2 by wire or wireless connection. The exterior speaker 368B and the interior speaker 368C output warning and notification guidance in sound. In this example, the warning light 368A, exterior speaker 368B, and interior speaker 368C are connected to the safety support device 2 by wire.

[0028] Facility 7 includes a signage facility 70 and a security facility 72. The signage facility 70 is a facility that displays construction signs, construction notice signs, lane reduction signs, direction signs, stop position signs, slow speed signs, bump warning signs, detour signs, road closure signs, or construction information signs, and in this example it is a construction notice sign 700. The construction notice sign 700 is a sign that informs vehicles and pedestrians traveling on the road that there are construction vehicles and a construction site in their path when construction work is being carried out on the road, and is installed at predetermined distances in front of and behind the aerial work platform 3. Specifically, the construction notice sign 700 is installed at distances of approximately 50m, 100m, or 300m from the aerial work platform 3. In this example, the construction notice sign 700 installed approximately 50m in front of the aerial work platform 3 is referred to as construction notice sign 700A, and the notice sign installed approximately 50m behind the aerial work platform 3 is referred to as construction notice sign 700B. Note that construction notice signs 700A and 700B have substantially the same configuration, and unless there is a need to distinguish between them, they are simply referred to as construction notice sign 700. Furthermore, construction notice sign 700 includes a beacon 710. Beacon 710A is a beacon installed on construction notice sign 700A, and beacon 710B is a beacon installed on construction notice sign 700B. Note that beacon 710A and 710B have substantially the same configuration, and unless there is a need to distinguish between them, they are simply referred to as beacon 710. Beacon 710 is an example of a wireless device according to the present invention, and is a wireless device that transmits radio waves. The beacon 710 transmits radio waves to the receiver 720 installed on the aerial work platform 3. The receiver 720 notifies the safety support device 2 of the strength of the radio waves received from the beacon 710. The receiver 720 is housed inside the safety support device 2. Furthermore, the safety facility 72 is a facility installed to enclose a predetermined area with safety equipment including safety cones 726, cone bars 727, and arrow signs 728. The safety facility 72 covers the work area of ​​the high-altitude work equipment 36 and prevents the entry of vehicles (including bicycles) and pedestrians traveling on the road.

[0029] The management server 9 records the results of the safety measures support device 2, including the application of the parking brake 30, the setting of the appropriate parking angle for the aerial work platform 3, the installation of wheel chocks 54, the implementation of ground clearance, the attachment of lanyard hooks, and the installation of the facility 7. This allows for the acquisition of evidence in the event of an emergency, enabling situation assessment and analysis, and the implementation of countermeasures.

[0030] Next, with reference to Figures 3 to 5, the hardware configuration and functional configuration of the safety support device 2 will be explained. Figure 3 is a diagram illustrating the hardware configuration of the safety support device 2. As illustrated in Figure 3, the safety support device 2 includes a CPU 200, memory 202, HDD 204, network interface 206 (network IF206), indicator light 208, and input / output device 210, and these components are connected to each other via a bus 212. CPU200 is, for example, the central processing unit. Memory 202 is, for example, volatile memory and functions as main memory. HDD204 is, for example, a hard disk drive, which stores computer programs and other data files as a non-volatile recording device. Network IF206 is an interface for wired or wireless communication, and for example, it enables communication with the management server 9. The management server 2 may be a cloud server. Furthermore, Network IF206 may enable communication with the information terminal of the person in charge of safety patrols. Indicator light 208 is an indicator device that lights up, for example, an LED or a lamp. The input / output device 210 is, for example, a USB port, to which the cables connected to the parking brake 30, the PTO device operating lever 32, the in-car and out-of-car speakers 368, and the outriggers 362 are connected.

[0031] Figure 4 is a diagram illustrating the functional configuration of the safety support device 2. Figure 5 is a diagram illustrating the functional configuration of the safety measures detection unit 403. The safety support device 2 has a safety support program 44 installed. As illustrated in Figures 4 and 5, the safety support program 44 includes a status acquisition unit 400, a cover detection unit 402, a safety measure detection unit 403, a determination unit 404, a warning unit 406, a warning means selection unit 408, a notification unit 410, a control unit 412, and a communication unit 414. Furthermore, some or all of the safety support program 44 may be implemented by hardware such as an ASIC. The safety support program 44 is also stored on a recording medium such as a CD-ROM and installed via this recording medium.

[0032] The status acquisition unit 400 acquires that the power of the aerial work platform 3's travel mechanism can be transmitted to the aerial work equipment 36. If the status acquisition unit 400 detects a potential difference corresponding to the ON operation of the PTO lever 32, it acquires that the power of the aerial work platform 3's travel mechanism can be transmitted to the aerial work equipment 36. If the status acquisition unit 400 detects a potential difference corresponding to the OFF operation of the PTO lever 32, it acquires that the power of the aerial work platform 3's travel mechanism cannot be transmitted to the aerial work equipment 36. The status acquisition unit 400 notifies the determination unit 404 of the acquisition result of the acquired status of the PTO device.

[0033] The cover detection unit 402 detects that the operation cover 360A, which covers the operation section of the control panel 360 for operating the aerial work equipment 36, has been opened and closed at a timing corresponding to the time when the acquisition result obtained by the state acquisition unit 400 indicates that the power of the aerial work platform 3's travel mechanism has been restored to the aerial work equipment 36. In other words, the cover detection unit 402 detects the opening and closing of the operation cover 360A at a predetermined timing, triggered by the time when the aerial work equipment 36 is restored to a state where power can be transmitted. The cover detection unit 402 may also detect the opening and closing of the operation cover 360A from the time the aerial work equipment 36 is restored to a state where power can be transmitted, or it may detect the opening and closing of the operation cover 360A at a predetermined timing after the aerial work equipment 36 is restored to a state where power can be transmitted. Furthermore, the cover detection unit 402 may detect the opening and closing operation of the operation cover 360A, or it may detect the open / closed state. The cover detection unit 402 notifies the determination unit 404 of the detection result detected by the opening / closing sensor 361.

[0034] The safety measures detection unit 403 detects the status of safety measures, acquired by sensors and imaging devices, at a timing corresponding to the moment when power can be transmitted to the high-altitude work equipment 36. In this example, the safety measures detection unit 403 detects the status of safety measures from the moment power can be transmitted to the high-altitude work equipment 36. The safety measures detection unit 403 includes the brake state detection unit 4030, parking angle detection unit 4032, wheel stop detection unit 4033, ground clearance detection unit 4034, hook attachment detection unit 4035, and facility detection unit 4036 as illustrated in Figure 5. The brake state detection unit 4030 detects a potential difference corresponding to the ON operation state of the parking brake 30, or a potential difference corresponding to the OFF operation state. The brake state detection unit 4030 detects a potential difference corresponding to the ON operation state or the OFF operation state of the parking brake 30. The brake state detection unit 4030 notifies the determination unit 404 of the detected detection result. Furthermore, the parking angle detection unit 4032 notifies the determination unit 404 of the vehicle body angle information of the aerial work platform 3 when parked, which has been detected by the vehicle body angle detection device 34, as a detection result. The parking angle detection unit 4032 notifies the determination unit 404 of the vehicle body angle information corresponding to an appropriate vehicle body angle of the aerial work platform 3 when parked, or information corresponding to an inappropriate vehicle body angle, as a detection result.

[0035] Furthermore, the wheel chock detection unit 4033 notifies the determination unit 404 of the presence or absence of wheel chocks 54 installed on both the front and rear sides of the contact surface in the direction of rotation of the wheels of the aerial work platform 3, as detected by the wheel chock detection device. In other words, the wheel chock detection unit 4033 detects whether or not wheel chocks 54 have been installed on the wheels of the aerial work platform 3 and notifies the determination unit 404 of the detected result. In addition, the wheel chock detection unit 4033 detects the presence or absence of wheel chocks 54 before the start of work at height and after the completion of work at height, and notifies the determination unit 404 of the detected result. Furthermore, the ground clearance detection unit 4034 notifies the determination unit 404 of the detection result, which is whether or not the wheels have been lifted off the ground as detected by the ground clearance detection device.

[0036] Furthermore, the hook-attachment detection unit 4035 notifies the determination unit 404 of the detection result of magnetic information corresponding to the state in which the lanyard hook is attached to the fixed part, or magnetic information corresponding to the state in which the lanyard hook is not attached to the fixed part, as detected by the hook-attachment detection device 364. In other words, the hook-attachment detection unit 4035 detects whether or not hook-attachment has been performed and notifies the determination unit 404 of the detected result.

[0037] Furthermore, the facility detection unit 4036 notifies the determination unit 404 of the detection result of the received strength of the radio waves transmitted from the beacon 710 installed on the construction notice sign 700, which has been received by the receiver 720. In addition, the facility detection unit 4036 detects the positional relationship of the safety cone 726, cone bar 727, and arrow board 728 from the overhead view image of the work site taken by the security facility camera 365, and notifies the determination unit 404 of the detection result.

[0038] The determination unit 404 detects information on the opening and closing of the operation cover 360A using the opening / closing sensor 361, aggregates this information using the cover detection unit 402, and then determines whether the time from opening to closing the operation cover 360A is within a predetermined time based on the aggregated results. In other words, the determination unit 404 determines whether the time from opening to closing the operation cover 360A is within a predetermined time based on the detection results of opening and closing the operation cover 360A detected by the cover detection unit 402. Here, the time from opening to closing the operation cover 360A is the time it takes for the field worker W to open the operation cover 360A, press the engine operation button on the opened control panel 360, and then close the operation cover 360A. This can be completed in, for example, 7 seconds or less, preferably within 2 seconds to 5 seconds. Therefore, the determination unit 404 in this example determines whether the time from opening to closing the operation cover 360A is 3 seconds or less. If the determination unit 404 determines that it is within a predetermined time, it notifies the warning means selection unit 408 of the determination result that it is within a predetermined time. Furthermore, if the determination unit 404 determines that the time from opening to closing the operation cover 360A is not within a predetermined time, it further determines whether the time of work performed at the work site falls within a predetermined time period. Specifically, the determination unit 404 determines whether the time of work performed at the work site is during the daytime or at night. For example, the determination unit 404 determines whether the work time is during the daytime, from 6:00 to 21:00, preferably from 7:00 to 20:00, or whether the work time is during the nighttime, from 19:00 to 8:00 the following morning, preferably from 20:00 to 7:00 the following morning. The determination unit 404 notifies the warning means selection unit 408 of the determination result.

[0039] Furthermore, the determination unit 404 determines whether or not safety measures are being implemented on-site based on the detection result detected by the safety measures detection unit 403 at a timing corresponding to when the cover detection unit 402 detects that the operation cover 360A has been opened. The determination unit 404 may make the determination at the time the opening is detected, or it may make the determination at a predetermined timing after the opening is detected.

[0040] Furthermore, the determination unit 404 determines whether or not the wheels of the aerial work platform 3 have been brought to a stationary state based on the potential difference of the operating state of the parking brake 30 detected by the brake state detection unit 4030. If the determination unit 404 detects a potential difference corresponding to the state when the parking brake 30 is ON, it determines that the wheels of the aerial work platform 3 have been brought to a stationary state. If the determination unit 404 detects a potential difference corresponding to the state when the parking brake 30 is OFF, it determines that the wheels of the aerial work platform 3 have not been brought to a stationary state and notifies the warning unit 406 of the determination result that the wheels of the aerial work platform 3 have not been brought to a stationary state.

[0041] Furthermore, the determination unit 404 determines whether or not the aerial work platform 3 is parked at an appropriate parking angle, based on the vehicle body angle of the aerial work platform 3 when parked, as detected by the parking angle detection unit 4032. For example, if the parking angle detection unit 4032 detects that the aerial work platform 3 is parked at an appropriate parking angle with a vehicle body angle of -2 degrees or more and +7 degrees or less, the determination unit 404 determines that the aerial work platform 3 is parked at an appropriate parking angle. If the determination unit 404 detects that the aerial work platform 3 is parked at an angle of less than -2 degrees or more than +7 degrees, with a downward slope or an upward slope, it determines that the aerial work platform 3 is not parked at an appropriate parking angle, and notifies the warning unit 406 and the control unit 412 of this determination.

[0042] Furthermore, the determination unit 404 determines whether or not the wheel chocks 54 have been installed based on the presence or absence of the wheel chocks 54 detected by the wheel chock detection unit 4033. The determination unit 404 determines that the wheel chocks 54 have been installed based on the detection result that the wheel chock detection unit 4033 has detected the wheel chocks 54. The determination unit 404 determines that the wheel chocks 54 have not been installed based on the detection result that the wheel chocks 54 have not been detected, and notifies the warning unit 406 of the determination result that the wheel chocks 54 have not been installed. In addition, the determination unit 404 may also consider the degree of contact between the wheel and the wheel chock 54 in addition to the presence or absence of the wheel chocks 54 when determining whether or not the wheel chocks 54 have been installed.

[0043] Furthermore, the determination unit 404 determines whether or not ground clearance has been performed based on the detection result of whether or not the wheels have been lifted off the ground, as detected by the ground clearance detection unit 4034. The determination unit 404 determines that ground clearance has been performed if the ground clearance detection unit 4034 has detected that the wheels have been lifted off the ground. The determination unit 404 determines that ground clearance has not been performed if it has not detected that the wheels have been lifted off the ground.

[0044] Furthermore, the determination unit 404 determines whether or not hooking has been performed based on the change in magnetism caused by hooking the lanyard hook to the fixing part, as detected by the hooking detection unit 4035. The determination unit 404 determines that hooking has been performed if the hooking detection unit 4035 detects magnetic information corresponding to the state in which the lanyard hook is hooked to the fixing part. The determination unit 404 determines that hooking has not been performed if it detects magnetic information corresponding to the state in which the lanyard hook is not hooked to the fixing part, and notifies the warning unit 406 of the determination result that hooking has not been performed.

[0045] Furthermore, the determination unit 404 determines the location to install the construction notice sign 700 based on the received strength of the radio waves transmitted from the beacon 710 detected by the facility detection unit 4036. The determination unit 404 determines that the location is for the construction notice sign 700 if the received strength of the radio waves detected by the facility detection unit 4036 is below a predetermined threshold, specifically below a predetermined threshold, and notifies the notification unit 410 of the determination result that the location is for the construction notice sign 700. The determination unit 404 determines that the location is not for the construction notice sign 700 if the received strength of the radio waves is not below a predetermined threshold, specifically below a predetermined threshold.

[0046] Furthermore, the determination unit 404 determines whether or not the construction notice sign 700 has been retrieved based on the received strength of the radio waves transmitted from the beacon 710 detected by the facility detection unit 4036. The determination unit 404 determines that the construction notice sign 700 has been retrieved if the received strength of the radio waves detected by the facility detection unit 4036 is above a predetermined threshold, specifically above a predetermined threshold. The determination unit 404 determines that the construction notice sign 700 has not been retrieved if the received strength of the radio waves is below a predetermined threshold, specifically below a predetermined threshold, and notifies the warning unit 406 of the determination result that the construction notice sign 700 has not been retrieved.

[0047] Furthermore, the determination unit 404 determines whether or not the safety facility 72 has been installed based on the relative positions of the safety cone 726, cone bar 727, and arrow board 728 detected by the facility detection unit 4036. The determination unit 404 determines that the safety cone 726, cone bar 727, and arrow board 728 have been placed in the appropriate positions, that is, the safety facility 72 has been properly installed, if the safety cone 726, cone bar 727, and arrow board 728 are arranged to surround the work area of ​​the aerial work platform 3 and set up a no-entry zone. Furthermore, if the safety cone 76, cone bar 727, and arrow board 728 are not positioned to surround the work area of ​​the aerial work platform 3 and establish a no-entry zone, the determination unit 404 determines that the safety cone 726, cone bar 727, and arrow board 728 are not positioned in the correct location, that is, that the safety equipment 72 has not been properly installed, and notifies the warning unit 406 of the determination that the safety equipment 72 has not been properly installed.

[0048] Furthermore, the determination unit 404 determines whether the wheel chocks 54 have been retrieved and stored in a predetermined storage position based on the detection results of the presence or absence of the wheel chocks 54 detected by the wheel chock detection unit 4033 before the start of work at height and after the end of work at height. The determination unit 404 determines that the wheel chocks 54 have been retrieved and stored in a predetermined storage position based on the detection result of the wheel chock detection unit 4033 detecting the presence of the wheel chocks 54 before the start of work at height and the detection result of the wheel chock detection unit 4033 detecting the absence of the wheel chocks 54 after the end of work at height. Alternatively, the determination unit 404 determines that the wheel chocks 54 have not been retrieved and stored in a predetermined storage position based on the detection result of the wheel chock detection unit 4033 detecting the presence of the wheel chocks 54 before the start of work at height and the detection result of the wheel chock detection unit 4033 detecting the presence of the wheel chocks 54 after the end of work at height, and notifies the warning unit 406 of the determination that the wheel chocks 54 have not been retrieved.

[0049] Based on the determination result by the judgment unit 404, which determined that safety measures were not being implemented, the warning unit 406 warns the on-site worker W that safety measures were not being implemented at the site. The warning unit 406 instructs the notification device 368 to notify the warning. When the warning unit 406 is issuing a warning regarding the application of the parking brake 30 and the implementation of an appropriate parking angle, it issues a warning using the in-vehicle speaker 368C. In addition, when the warning unit 406 is issuing a warning regarding the installation of wheel chocks 54, the implementation of ground clearance, the installation of lanyard hooks for fall arrest equipment, and the installation of safety facilities 72, it issues a warning using the warning light 368A and the external speaker 368B. Furthermore, based on the determination result from the judgment unit 404, which determined that the wheel chocks 54 and the construction notice sign 700 have not been removed, the warning unit 406 warns the on-site worker W that they have not been removed. The warning unit 406 issues the warning using the in-vehicle speaker 368C.

[0050] The warning means selection unit 408 selects a warning means other than an audible warning means outside the aerial work platform 3 if the time from opening to closing the operation cover 360A is within a predetermined time, based on the determination result determined by the determination unit 404. The warning means selection unit 408 selects a warning means other than an audible warning means if the work time from when the on-site worker W opens the operation cover 360A and presses the engine operation button on the opened operation panel 360 until closing the operation cover 360A is, for example, 7 seconds or less, preferably 2 seconds or more and 5 seconds or less. In this example, the warning means selection unit 408 selects a warning by a warning light 368A as a warning means other than an audible warning means outside the aerial work platform 3 if the time from opening to closing the operation cover 360A is 3 seconds or less.

[0051] Furthermore, the warning means selection unit 408 selects a warning means to be issued by the warning unit 406 based on the time of work performed at the work site. The warning means selection unit 408 selects a warning means according to a predetermined time period that includes the work time. The warning means selection unit 408 selects a warning means to be issued depending on whether the work time is during the day or at night. When the work time is during the day, the warning means selection unit 408 selects a warning means using light and sound, and when the work time is at night, it selects a warning means other than a sound warning, i.e., a warning means using light. In this example, the warning means selection unit 408 selects a warning means using a warning light 368A and an external speaker 368B when the work time is during the daytime from 7:00 to 20:00, and selects a warning means using a warning light 368A when the work time is at night from 20:00 to 7:00 the next morning.

[0052] The notification unit 410 instructs the notification device 368 to notify it of the installation location of the construction notice sign 700, and notifies the installation location of the construction notice sign 700 at a timing corresponding to when the construction notice sign 700 is a predetermined distance away from the aerial work platform 3. When the determination unit 404 determines that it is the location to install the construction notice sign 700, the notification unit 410 notifies the external speaker 368B at the timing when the location for installation of the construction notice sign 700 is reached. The distance between the aerial work platform 3 and the construction notice sign 700 can be appropriately set within the range of approximately 50m to approximately 300m, and the notification unit 410 notifies the timing when the set predetermined distance is reached within the range of approximately 50m to approximately 300m. In addition, the notification unit 410 notifies the locations of the construction notice signs 700A and 70B, which are installed in the front and rear directions of the aerial work platform 3, at the timing when they reach the predetermined distance. In this example, the notification unit 410 notifies the vehicle via the external speaker 368B about the installation locations of the construction notice signs 700A and 70B when the construction notice sign 700A is installed approximately 50m in front of the aerial work platform 3 and the construction notice sign 700B is installed approximately 50m behind the aerial work platform 3.

[0053] The control unit 412 controls the outrigger 362 to limit its extension based on the determination result from the determination unit 404, which determines that at least the wheel chocks 54 have not been installed. The control unit 412 also controls the engine operation button on the control panel 360 to be inoperable if the wheel chocks 54 have not been installed. Furthermore, the control unit 412 controls the engine operation button on the control panel 360 to be operable if the wheel chocks 54 have been installed.

[0054] The communication unit 414 collects the determination results of whether or not safety measures have been implemented, as determined by the determination unit 404, and transmits the collected determination results regarding the implementation of safety measures to the management server 9. The communication unit 414 transmits to the management server 9 the determination results regarding whether or not the parking brake 30 has been applied, the appropriate parking angle has been achieved, the wheel chocks 54 have been installed, the ground clearance has been performed, the lanyard hooks have been attached, and the facilities 7 (signage facilities 70 and security facilities 72) have been installed. The communication unit 414 may transmit the determination results regarding the implementation of safety measures to the management server 9 in real time, for example, once every 5 seconds, or it may transmit all the determination results to the management server 9 after determining whether or not each safety measure, such as the installation of wheel chocks 54, the ground clearance, the lanyard hooks have been attached, and the facilities 7 have been attached. Alternatively, the communication unit 414 may transmit the determination results to the management server 9 at the time it determines whether or not each safety measure has been implemented. Furthermore, if the determination unit 404 determines whether safety measures should be implemented using the captured image, the communication unit 414 may transmit only the determination result, or it may transmit the captured image and the determination result together. In this example, the communication unit 414 transmits only the determination result regarding the implementation of safety measures to the management server 9.

[0055] Next, we will explain the safety support process with reference to Figures 6 to 11. Figure 6 is a flowchart illustrating the safety support process (S10). Figure 7 is a flowchart illustrating the safety support process (S20). Figure 8 is a flowchart illustrating the safety measures support process (S30). Figure 9 is a flowchart illustrating the safety measures support process (S40). Figure 10 is a flowchart illustrating the safety measures support process (S50). Figure 11 is a flowchart illustrating the safety measures support process (S60). The site worker W arrives at the work site in the aerial work platform 3 and parks the aerial work platform 3 at the work site. After parking the aerial work platform 3, the site worker W operates the lever (ON operation) to apply the parking brake 30 to keep the wheels stationary. Subsequently, the site worker W operates the PTO lever 32 (ON operation) to drive the PTO device in order to transmit power from the aerial work platform 3's travel mechanism to the aerial work equipment 36. The safety support process (S10) is initiated by the ON operation of the PTO lever 32, which is illustrated in Figure 6. Then, after performing the safety support processing (S10), the safety support processing (S20) exemplified in Figure 7, the safety support processing (S30) exemplified in Figure 8, the safety support processing (S40) exemplified in Figure 9, the safety support processing (S50) exemplified in Figure 10, and the safety support processing (S60) exemplified in Figure 11 are started. The safety support processing (S20~S60) may be processed sequentially or in parallel, and in this example, they are processed in parallel.

[0056] As illustrated in Figure 6, in step 100 (S100), when the field worker W turns the PTO lever 32 to the ON position, the state acquisition unit 400 acquires the potential difference corresponding to the ON operation of the PTO lever 32. That is, the state acquisition unit 400 acquires that the power of the travel mechanism of the aerial work platform 3 can be transmitted to the aerial work equipment 36. Also, when the field worker W turns the PTO lever 32 to the OFF position, the state acquisition unit 400 acquires the potential difference corresponding to the OFF operation of the PTO lever 32. That is, the state acquisition unit 400 acquires that the power of the travel mechanism of the aerial work platform 3 cannot be transmitted to the aerial work equipment 36.

[0057] In step 102 (S102), the determination unit 404 determines that if the acquisition result obtained by the state acquisition unit 400 is the potential difference corresponding to when the PTO lever 32 is turned ON, the power of the travel device of the aerial work platform 3 can be transmitted to the aerial work equipment 36, and the process proceeds to S104. Alternatively, if the acquisition result obtained by the state acquisition unit 400 is the potential difference corresponding to when the PTO lever 32 is turned OFF, the determination unit 404 determines that the power of the travel device of the aerial work platform 3 cannot be transmitted to the aerial work equipment 36, and the process proceeds to S100.

[0058] In step 104 (S104), the brake state detection unit 4030 detects a potential difference corresponding to the ON / OFF operation of the parking brake 30. The parking angle detection unit 4032 detects the body angle of the aerial work platform 3 when parked. The wheel chock detection unit 4033 detects whether or not the wheel chocks 54 are present. The ground clearance detection unit 4034 detects whether or not the wheels are lifted off the ground. The hook attachment detection unit 4035 detects magnetic information corresponding to the state in which the lanyard hook is attached to the fixing part, or magnetic information corresponding to the state in which the lanyard hook is not attached to the fixing part. The facility detection unit 4036 detects the reception strength of radio waves transmitted from the beacon 710 installed on the construction notice sign 700. Furthermore, the facility detection unit 4036 detects the positional relationship of the safety facilities 72, including the safety cone 72, cone bar 727, and arrow board 728, from the overhead view images of the work site taken by the safety facility camera 365. The brake state detection unit 4030, parking angle detection unit 4032, wheel stop detection unit 4033, ground clearance detection unit 4034, hook attachment detection unit 4035, and facility detection unit 4036 then notify the determination unit 404 of the detected detection results.

[0059] In step 106 (S106), if the determination unit 404 detects a potential difference corresponding to the ON operation of the parking brake 30 when the brake state detection unit 4030 is turned ON, it determines that the parking brake 30 is in the ON state, and the process proceeds to S110. Also, if the determination unit 404 detects a potential difference when the brake state detection unit 4030 is turned OFF, it determines that the parking brake 30 is in the OFF state, and the process proceeds to S108.

[0060] In step 108 (S108), the warning unit 406, based on the determination that the parking brake 30 is in the OFF position, issues an audible warning notification via the in-vehicle speaker 368C. The warning unit 406 notifies the site worker W, who is riding in the aerial work platform 3, to turn on the parking brake 30 to bring the wheels to a stationary position.

[0061] In step 110 (S110), if the determination unit 404 detects that the parking angle detection unit 4032 detects that the vehicle is parked with a downward slope at an angle of -2 degrees or more and +7 degrees or less, it determines that the aerial work platform 3 is parked at an appropriate parking angle, and proceeds to the process in S114. If the determination unit 404 detects that the vehicle is parked with a downward slope at an angle of less than -2 degrees or more than +7 degrees, or parked with an upward slope at the front, it determines that the vehicle is not parked at an appropriate parking angle, and proceeds to the process in S112.

[0062] In step 112 (S112), the warning unit 406, based on the determination that parking has not been performed at an appropriate parking angle, issues an audible warning notification via the in-vehicle speaker 368C. The warning unit 406 notifies the site worker W, who is in the aerial work platform 3, to perform a downward-sloping parking with a vehicle angle of -2 degrees or more and +7 degrees or less. The warning unit 406 may also notify the current parking angle of the aerial work platform 3.

[0063] In step 114 (S114), the communication unit 414 transmits to the management server 9 the result of determining whether the parking brake 30 has been applied and whether the correct parking angle has been achieved. The communication unit 414 may transmit the determination result to the management server 9 at the time when the determination result for the application of the parking brake 30 or the determination result for achieving the correct parking angle is obtained, or it may transmit the determination result to the management server 9 when both the determination results for the application of the parking brake 30 and the determination result for achieving the correct parking angle have been obtained. Furthermore, in the safety support processing (S10) of this example, the determination and warning regarding the application of the parking brake 30, and the determination and warning regarding the implementation of an appropriate parking angle are performed in a series of steps, but these steps may be performed in a separate sequence. Thus, this process allows on-site workers W to apply the parking brake 30 and park at an appropriate angle, and the results of these actions can be transmitted to the management server 9 to notify the safety measures monitoring officer M.

[0064] As illustrated in Figure 7, in step 200 (S200), the cover detection unit 402 detects that the operating cover 360A has been opened from the time the acquisition result obtained by the state acquisition unit 400 indicates that power can be transmitted to the high-altitude work equipment 36, and notifies the determination unit 404 of the detected result.

[0065] In step 202 (S202), the determination unit 404 determines that the operation cover 360A has been opened if the detection result detected by the cover detection unit 402 at the timing corresponding to the opening of the operation cover 360A is an opening detection result, and the process proceeds to S204. If the detection result of the operation cover 360A is a closing detection result, the determination unit 404 determines that the operation cover 360A has not been opened, and the process proceeds to S200.

[0066] In step 204 (S204), the cover detection unit 402 detects that the operation cover 360A has been closed and notifies the determination unit 404 of the detected result.

[0067] In step 206 (S206), if the detection result detected by the cover detection unit 402 indicates that the operation cover 360A has been closed, the determination unit 404 determines that the operation cover 360A has been closed, and the process proceeds to S208. If the detection result indicates that the operation cover 360A has not been closed, the determination unit 404 determines that the operation cover 360A has not been closed, and the process proceeds to S204.

[0068] In step 208 (S208), the determination unit 404 determines whether the time from opening to closing the operation cover 360A is 3 seconds or less, based on the detection results of opening and closing the operation cover 360A detected by the cover detection unit 402. If the determination unit 404 determines that the work time is within a predetermined time of 3 seconds or less, the process proceeds to process S212. If the determination unit 404 determines that the work time exceeds 3 seconds, the process proceeds to process S210.

[0069] In step 210 (S210), if the determination unit 404 determines that the time from opening to closing the operation cover 360A exceeds 3 seconds, it determines whether the time of work at the work site is during the daytime (7:00 to 20:00) or during the nighttime (20:00 to 7:00 the following morning). If the determination unit 404 determines that the time of work at the work site is during the daytime, the process proceeds to S214; if it determines that it is at night, the process proceeds to S212.

[0070] In step 212 (S212), the warning means selection unit 408 selects a warning means using a warning light 368A outside the aerial work platform 3 if the determination unit 404 determines that the opening and closing time of the operation cover 360A is 3 seconds or less, or if the determination unit 404 determines that the time of work at the work site is at night, and notifies the warning unit 406 of the selected warning means.

[0071] In step 214 (S214), if the determination unit 404 determines that the work is being carried out during the daytime, the warning means selection unit 408 selects a warning means consisting of a warning light 368A and an external speaker 368B, and notifies the warning unit 406 of the selected warning means. Thus, this process allows for the use of the warning light 368A and the external speaker 368B depending on the time of day, enabling work to be carried out while taking care to avoid noise problems, for example, in the vicinity of the work site.

[0072] As illustrated in Figure 8, in step 300 (S300), the cover detection unit 402 detects that the operating cover 360A has been opened from the time the acquisition result obtained by the status acquisition unit 400 indicates that power can be transmitted to the high-altitude work equipment 36, and notifies the determination unit 404 of the detected result.

[0073] In step 302 (S302), the determination unit 404 determines that the operation cover 360A has been opened if the detection result detected by the cover detection unit 402 at the timing corresponding to the opening of the operation cover 360A is an opening detection result, and the process proceeds to S304. If the detection result indicates that the operation cover 360A has not been opened, the determination unit 404 determines that the operation cover 360A has not been opened, and the process proceeds to S300.

[0074] In step 304 (S304), if the determination unit 404 determines that the wheel chock 54 has been installed based on the detection result that the wheel chock detection unit 4033 has detected the wheel chock 54, the process proceeds to S306. Alternatively, if the determination unit 404 determines that the wheel chock 54 has not been installed based on the detection result that the wheel chock detection unit 4033 has not detected the wheel chock 54, the process proceeds to S308.

[0075] In step 306 (S306), the control unit 412 controls the operation of the engine operation button on the control panel 360 to enable operation based on the determination result from the determination unit 404 that the wheel chocks 54 have been installed. This allows the field worker W to extend the outriggers 362.

[0076] In step 308 (S308), the warning unit 406 warns that the wheel chocks 54 have not been installed, based on the determination result of the determination unit 404 that the wheel chocks 54 have been installed. The warning unit 406 either issues a warning using only the warning light 368A selected by the safety measures support processing (S20), or a warning using both the warning light 368A and the external speaker 368B.

[0077] In step 310 (S310), the control unit 412 controls the outrigger 362 to limit its extension based on the determination result from the determination unit 404 that the wheel chocks 54 have not been installed. Specifically, the control unit 412 controls the engine operation button on the control panel 360 to be inoperable if the wheel chocks 54 have not been installed. As a result, even if the field worker W attempts to extend the outrigger 362 using the control panel 360, the outrigger 362 cannot be extended.

[0078] In step 312 (S312), the wheel chock detection unit 4033 detects again whether a wheel chock 54A has been placed on the left rear wheel and a wheel chock 54B on the right rear wheel of the aerial work platform 3, and notifies the determination unit 404 of the detection result.

[0079] In step 314 (S314), the determination unit 404 determines whether or not ground clearance has been performed based on the detection result of whether or not the wheels have left the ground, as detected by the ground clearance detection unit 4034. If the ground clearance detection unit 4034 detects that the wheels have left the ground, the determination unit 404 determines that ground clearance has been performed, and this process proceeds to the process in S318. If the determination unit 404 does not detect that the wheels have left the ground, it determines that ground clearance has not been performed, and this process proceeds to the process in S316.

[0080] In step 316 (S316), the ground clearance detection unit 4034 detects again whether the wheels have left the ground and notifies the determination unit 404 of the detection result.

[0081] In step 318 (S318), the communication unit 414 transmits to the management server 9 the result of determining whether or not the wheel chocks 54 have been applied and / or whether the ground clearance has been performed. The communication unit 414 may transmit the determination result to the management server 9 at the time when the determination result for the application of the wheel chocks 54 or the determination result for the ground clearance has been obtained, or it may transmit the determination result to the management server 9 when both the determination results for the application of the wheel chocks 54 and the determination result for the ground clearance have been obtained. Furthermore, in the safety support processing (S30) of this example, the determination and warning regarding the implementation of the wheel chocks 54, and the determination regarding the implementation of ground clearance are performed in a series of steps, but these steps may be separate. Thus, this process allows on-site worker W to install wheel chocks 54 and perform proper ground clearance, and the results of these actions can be transmitted to the management server 9 to notify the safety measures monitoring officer M.

[0082] As illustrated in Figure 9, in step 400 (S400), the cover detection unit 402 detects that the operating cover 360A has been opened when the acquisition result obtained by the state acquisition unit 400 indicates that power can be transmitted to the high-altitude work equipment 36, and notifies the determination unit 404 of the detected result.

[0083] In step 402 (S402), the determination unit 404 determines that the operation cover 360A has been opened if the detection result detected by the cover detection unit 402 at the timing corresponding to the opening of the operation cover 360A is an opening detection result, and the process proceeds to S404. If the detection result indicates that the operation cover 360A has not been opened, the determination unit 404 determines that the operation cover 360A has not been opened, and the process proceeds to S400.

[0084] In step 404 (S404), the determination unit 404 determines that the location for installing the construction notice sign 700 is appropriate if the received signal strength of the radio waves detected by the facility detection unit 4036 falls below a predetermined threshold, and the process proceeds to S408. If the received signal strength of the radio waves detected by the facility detection unit 4036 does not fall below a predetermined threshold, the determination unit 404 determines that the location for installing the construction notice sign 700 is inappropriate, and the process proceeds to S406.

[0085] In step 406 (S406), the warning unit 406 warns that the construction notice sign 700 has not been installed, based on the determination result by the determination unit 404 which determined that the location for installing the construction notice sign 700 is not appropriate. The warning unit 406 either issues a warning using only the warning light 368A selected by the safety measures support processing (S20), or a warning using both the warning light 368A and the external speaker 368B.

[0086] In step 408 (S408), the notification unit 410 makes an audible notification from the external speaker 368B when the construction notice sign 700A is positioned approximately 50m in front of the aerial work platform 3. Similarly, the notification unit 410 makes an audible notification from the external speaker 368B when the construction notice sign 700B is positioned approximately 50m behind the aerial work platform 3.

[0087] In step 410 (S410), if the determination unit 404 determines, based on the positional relationship of the safety cone 726, cone bar 727, and arrow board 728 detected by the facility detection unit 4036, that the safety facility 72 is installed to surround the work area of ​​the aerial work platform 3 (which also serves as a restricted area), that is, that the safety facility 72 has been installed, then the process proceeds to S414. If the determination unit 404 determines that the safety facility 72 is not installed to surround the work area of ​​the aerial work platform 3 (which also serves as a restricted area), that is, that the safety facility 72 has not been installed, then the process proceeds to S412.

[0088] In step 412 (S412), the warning unit 406 warns that the construction notice sign 700 has not been installed, based on the determination result by the determination unit 404 which determined that the location for installing the construction notice sign 700 is not appropriate. The warning unit 406 either issues a warning using only the warning light 368A selected by the safety measures support processing (S20), or a warning using both the warning light 368A and the external speaker 368B.

[0089] In step 414 (S414), the communication unit 414 transmits to the management server 9 the result of determining whether the construction notice sign 700 and the safety cone 726, etc., have been installed in the appropriate locations. The communication unit 414 may transmit the determination results to the management server 9 when the determination results for the installation of the signage facility 70 and the determination results for the installation of the safety facility 72 are available, or it may transmit the determination results to the management server 9 when the determination results for the installation of the signage facility 70 and the determination results for the installation of the safety facility 72 have been obtained. Furthermore, in the safety measures support process (S40) of this example, the determination of whether to implement the signage facility 70 and the issuance of warnings, as well as the determination of whether to implement the security facility 72, are performed in a series of steps, but they may be performed in separate steps. Thus, this process allows on-site workers W to install construction notice signs 700 in the correct locations and to place safety cones 726 and other safety devices in the correct locations, and the results of these actions can be transmitted to the management server 9 to notify the safety measures monitoring officer M.

[0090] As illustrated in Figure 10, in step 500 (S500), the cover detection unit 402 detects that the operating cover 360A has been opened from the time the acquisition result obtained by the state acquisition unit 400 indicates that power can be transmitted to the high-altitude work equipment 36, and notifies the determination unit 404 of the detected result.

[0091] In step 502 (S502), the determination unit 404 determines that the operation cover 360A has been opened if the detection result detected by the cover detection unit 402 at the timing corresponding to the opening of the operation cover 360A is an opening detection result, and the process proceeds to S504. If the detection result indicates that the operation cover 360A has not been opened, the determination unit 404 determines that the operation cover 360A has not been opened, and the process proceeds to S500.

[0092] In step 504 (S504), if the determination unit 404 detects magnetic information corresponding to the state in which the lanyard hook is attached to the fixing part by the hook attachment detection unit 4035, it determines that the hook has been attached and proceeds to S508. If the determination unit 404 detects magnetic information corresponding to the state in which the lanyard hook is not attached to the fixing part, it determines that the hook has not been attached and proceeds to S506.

[0093] In step 506 (S506), the warning unit 406 issues a warning that the hook has not been attached, based on the determination result determined by the determination unit 404. The warning unit 406 may issue a warning using only the warning light 368A selected by the safety measures support process (S20), or it may issue a warning using both the warning light 368A and the external speaker 368B, or it may issue a warning using only the external speaker 368B. In step 508 (S508), the communication unit 414 transmits the result of the determination of whether or not hooking was performed to the management server 9. Thus, this process allows on-site worker W to perform the hooking procedure, and the results of the hooking procedure to be sent to the management server 9, which then notifies the safety measures monitoring officer M.

[0094] As illustrated in Figure 11, in step 600 (S600), the cover detection unit 402 detects that the operating cover 360A has been opened when the acquisition result obtained by the state acquisition unit 400 indicates that power can be transmitted to the high-altitude work equipment 36, and notifies the determination unit 404 of the detected result.

[0095] In step 602 (S602), the determination unit 404 determines that the operation cover 360A has been opened if the detection result detected by the cover detection unit 402 at the timing corresponding to the opening of the operation cover 360A is an opening detection result, and the process proceeds to S604. If the detection result indicates that the operation cover 360A has not been opened, the determination unit 404 determines that the operation cover 360A has not been opened, and the process proceeds to S600.

[0096] In step 604 (S604), the state acquisition unit 400 acquires the potential difference corresponding to the OFF operation of the PTO lever 32 when the field worker W turns the PTO lever 32 to the OFF position. That is, the state acquisition unit 400 acquires that the power of the travel mechanism of the aerial work platform 3 cannot be transmitted to the aerial work equipment 36.

[0097] In step 606 (S606), the determination unit 404 determines that if the acquisition result obtained by the state acquisition unit 400 is the potential difference corresponding to when the PTO lever 32 is turned OFF, the power of the travel mechanism of the aerial work platform 3 cannot be transmitted to the aerial work equipment 36, and the process proceeds to S608. Alternatively, if the acquisition result obtained by the state acquisition unit 400 is the potential difference corresponding to when the PTO lever 32 is turned ON, the determination unit 404 determines that the power of the travel mechanism of the aerial work platform 3 can be transmitted to the aerial work equipment 36, and the process proceeds to S604.

[0098] In step 608 (S608), the wheel chock detection unit 4033 detects the presence or absence of a pair of wheel chocks 54A installed on the left rear wheel and a pair of wheel chocks 54B installed on the right rear wheel of the aerial work platform 3.

[0099] In step 610 (S610), the determination unit 404 determines whether the wheel chocks 54 have been retrieved and stored in a predetermined storage position based on the detection result of the wheel chock detection unit 4033 detecting the presence or absence of the wheel chocks 54 in the safety support processing (S30) and the detection result of the wheel chock detection unit 4033 detecting the presence or absence of the wheel chocks 54 in this process S608. The determination unit 404 determines that the wheel chocks 54 have been retrieved and stored in a predetermined storage position based on the detection result of the wheel chock detection unit 4033 detecting the presence or absence of the wheel chocks 54 in the safety support processing (S30) and the detection result of the wheel chock detection unit 4033 detecting the absence of the wheel chocks 54 in this process S608, and this process proceeds to the process in S614. Furthermore, the determination unit 404 determines, based on the detection result of the wheel chock detection unit 4033 detecting the presence of the wheel chock 54 in the safety measures support processing (S30) and the detection result of the wheel chock detection unit 4033 detecting the presence of the wheel chock 54 in this process S608, that the wheel chock 54 has not been retrieved and stored in the predetermined storage position, and this process proceeds to the process in S612.

[0100] In step 612 (S612), the warning unit 406, based on the determination result by the determination unit 404 which determined that the wheel chock 54 had not been retrieved and stored in the predetermined storage position, warns the vehicle through the in-vehicle speaker 368C that the wheel chock 54 had not been retrieved and stored in the predetermined storage position.

[0101] In step 614 (S614), the facility detection unit 4036 detects the received strength of radio waves transmitted from the beacon 710 installed on the construction notice sign 700. In step 616 (S616), the determination unit 404 determines that the construction notice sign 700 has been retrieved if the received signal strength of the radio waves detected by the facility detection unit 4036 exceeds a predetermined threshold, and the process proceeds to S620. Alternatively, the determination unit 404 determines that the construction notice sign 700 has not been retrieved if the received signal strength of the radio waves detected by the facility detection unit 4036 falls below a predetermined threshold, and the process proceeds to S618.

[0102] In step 618 (S618), the warning unit 406, based on the determination result by the determination unit 404 that the construction notice sign 700 has not been collected, warns the vehicle via the in-vehicle speaker 368C that the construction notice sign 700 has not been collected.

[0103] In step 620 (S620), the cover detection unit 402 detects that the operating cover 360A has been closed and notifies the determination unit 404 of the detected result. In step 622 (S622), the determination unit 404 determines that the operation cover 360A has been closed if the detection result detected by the cover detection unit 402 indicates that the operation cover 360A has been closed, and this process ends. Alternatively, if the detection result indicates that the operation cover 360A has not been closed, the determination unit 404 determines that the operation cover 360A has not been closed, and this process proceeds to the process in S624.

[0104] In step 624 (S624), the warning unit 406, based on the determination result by the determination unit 404 that the operation cover 360A is not closed, warns the vehicle through the in-vehicle speaker 368C that the operation cover 360A is in an open state. Thus, this process prevents the wheel chocks 54 and construction notice signs 700 from being left uncollected, as well as the operation cover 360A from being left open.

[0105] As described above, the safety support system 1 in this embodiment allows on-site workers to implement on-site safety measures (applying the parking brake 30, ensuring an appropriate parking angle, installing marking facilities 70 and safety facilities 72, and installing wheel chocks 54) before the outrigger extension and jack-up operations. Furthermore, by ensuring the thorough installation of wheel chocks 54, it is possible to prevent the aerial work platform from running away.

[0106] Furthermore, according to Safety Measures Support System 1, it is expected that the current procedures performed by on-site worker W to verify safety measures—such as taking photographs of the angle meter showing the vehicle's angle when parked, taking photographs of the installation status of wheel chocks, and taking photographs of the installation status of construction notice signs—will become unnecessary, and the time required to notify safety measures management officer M of these implementation status photographs will be reduced. Furthermore, according to Safety Measures Support System 1, even if there are multiple aerial work platforms working on site, the implementation of safety measures can be confirmed for each aerial work platform, which is expected to allow for a more detailed understanding of the implementation status of safety measures. In addition, it is expected that telephone communication between on-site worker W and safety measures monitoring officer M will become unnecessary, improving the work efficiency of safety measures monitoring officer M. Furthermore, some functions of Safety Measures Support System 1 may also be used for safety measures in delivery trucks and the like.

[0107] (Variation 1) In the above embodiment, the control unit 412 controls the extension of the outriggers 362 based on the determination that the wheel chocks 54 have not been installed. However, the control unit 412 is not limited to this, and may be configured to restrict the extension of the outriggers 362 based on the determination that, in addition to the installation of the wheel chocks 54, the parking brake 30 has not been applied, the parking angle has not been set correctly, and the marking facilities 70 and safety facilities 72 have not been installed. This allows safety measures such as applying the parking brake 30, setting a correct parking angle, installing the marking facilities 70 and safety facilities 72, and installing the wheel chocks 54 to be implemented before the outriggers are extended and the vehicle is jacked up.

[0108] (Modification 2) In S616 of the safety support processing (S60) of the above embodiment, the determination unit 404 determined whether or not the construction notice sign 700 was retrieved based on the received strength of the radio waves detected by the facility detection unit 4036, but is not limited to this. For example, the determination unit 404 may determine whether or not the construction notice sign 700 was retrieved based on the detection results of the received strength of the radio waves transmitted from the beacon 710 detected by the facility detection unit 4036 before the start of work at height and after the end of work at height. Specifically, the determination unit 404 determines whether or not the construction notice sign 700 was retrieved based on the detection results of the received strength of the radio waves transmitted from the beacon 710 detected by the facility detection unit 4036 in the safety support processing (S40) and the detection results of the received strength of the radio waves transmitted from the beacon 710 detected by the facility detection unit 4036 in this process. The determination unit 404 determines that the construction notice sign 700 has been retrieved if the radio wave reception strength from the beacon 710 detected by the facility detection unit 4036 in this process S614 is stronger than the radio wave reception strength from the beacon 710 detected by the facility detection unit 4036 in the safety measures support process (S40). Conversely, the determination unit 404 determines that the construction notice sign 700 has not been retrieved if the radio wave reception strength from the beacon 710 detected by the facility detection unit 4036 in this process S614 is weaker or does not change compared to the radio wave reception strength from the beacon 710 detected by the facility detection unit 4036 in the safety measures support process (S40). In this way, it is possible to determine whether or not the construction notice sign 700 has been retrieved from the difference in detection results before the start of work at height and after the end of work at height. Although embodiments of the present invention have been described above, the invention is not limited thereto, and various modifications and additions are possible without departing from the spirit of the invention. [Explanation of Symbols]

[0109] 1…Safety measures support system 2…Safety support device 3…Aerial work platform 7… Facilities 70… Signage facilities 700... Construction Notice Sign 710... Beacon 720... Receiver 72…Security facilities 726... Safety cone 727... Cone Bar 728... Arrow sign 8…Network 9…Management Server 30... Parking brake 32...PTO device operating lever 34... Vehicle body angle detection device 36…Equipment for working at heights 360…Operation panel 360A...Operation cover 361...Operation cover opening / closing sensor 362... Outrigger 364... Hook-hanging detection device 365…Camera for security facilities 368…Notification device 368A…warning light 368B...Exterior car speaker 368C... In-car speaker 400...Status acquisition unit 402... Cover detection unit 403... Safety Measures Detection Unit 4030...Brake state detection unit 4032... Parking angle detection unit 4033... Wheel chock detection unit 4034...Ground clearance detection unit 4035... Hook attachment detection unit 4036...Security facility detection unit 405...Judgment section 406...Warning section 408…Warning means selection unit 410…Notification department 412... Control Unit 414... Communications Department

Claims

1. A state acquisition unit that acquires whether the power of the work vehicle's running gear is in a state where it can be transmitted to the work equipment, A cover detection unit detects when the operating cover covering the operating section of the operating device for operating the aforementioned work equipment is opened, provided that the equipment is in a state where power can be transmitted to it. When the cover detection unit detects that the operating cover has been opened, a determination unit determines whether or not safety measures have been implemented at the corresponding timing. It has, The cover detection unit detects that the operating cover has been opened at a timing corresponding to the fact that power can be transmitted to the work equipment. Safety support device.

2. A work vehicle is an aerial work platform equipped with work equipment for performing work at heights. The aforementioned safety measures include on-site safety measures for aerial work platforms and on-site workers, and the installation of facilities at the work site. A warning unit that issues a warning if the safety measures are not being implemented based on the determination result determined by the determination unit, A warning means selection unit selects a warning means to be issued by the warning unit based on the time of work performed at the work site. It further possesses, The warning unit issues a warning using the warning means selected by the warning means selection unit. The safety support device according to claim 1.

3. Based on the detection result detected by the cover detection unit, the warning means selection unit selects a warning means other than an audible warning means outside the work vehicle if the time from opening to closing the operation cover is within a predetermined time. The safety support device according to claim 2.

4. The installation of the aforementioned facilities includes the installation of signage facilities. A wireless device that transmits radio waves is installed in the aforementioned signage facility, A notification unit notifies the location where the marking facility will be installed at a timing corresponding to when the work vehicle and the marking facility are at a predetermined distance from each other. It further possesses, The determination unit determines, based on the received strength of the radio waves transmitted from the wireless device, that the location is the location where the marker facility will be installed if the received strength of the radio waves is below a predetermined threshold. The safety support device according to claim 2.

5. The state acquisition unit acquires that the power of the running gear of the work vehicle cannot be transmitted to the work equipment. When the determination unit acquires that it is impossible to transmit to the work equipment, it determines, at a corresponding timing, that the indicator facility has not been retrieved based on the received strength of the radio waves transmitted from the wireless device, if the received strength of the radio waves is below a predetermined threshold. The safety support device according to claim 4.

6. The aforementioned work equipment includes outriggers, Safety measures at the aforementioned site include the installation of wheel chocks on the aforementioned work vehicles. Based on the determination result from the determination unit, which determines that at least the wheel chocks have not been installed, the control unit controls the extension of the outriggers to be limited. It further possesses The safety support device according to claim 2.

7. A state acquisition unit that acquires whether the power of the work vehicle's running gear is in a state where it can be transmitted to the work equipment, A cover detection unit detects when the operating cover covering the operating section of the operating device for operating the aforementioned work equipment is opened, provided that the equipment is in a state where power can be transmitted to it. When the cover detection unit detects that the operating cover has been opened, a determination unit determines whether or not safety measures have been implemented at the corresponding timing. It has, The cover detection unit detects that the operating cover has been opened at a timing corresponding to the fact that power can be transmitted to the work equipment. Safety measures support system.

8. A step of obtaining confirmation that the power from the running gear of the work vehicle is in a state where it can be transmitted to the work equipment, The steps include detecting that the operating cover covering the operating section of the operating device for operating the work equipment has been opened, provided that the work equipment is in a state where power can be transmitted to it, When the operation cover is detected to have been opened, the procedure involves determining whether or not safety measures will be implemented at a corresponding timing. It has, In the detection step, the system detects that the operating cover has been opened at a timing corresponding to the moment when power can be transmitted to the work equipment. Safety measures support methods.

9. A step of obtaining confirmation that the power from the running gear of the work vehicle is in a state where it can be transmitted to the work equipment, The steps include detecting that the operating cover covering the operating section of the operating device for operating the work equipment has been opened, provided that the work equipment is in a state where power can be transmitted to it, When the operation cover is detected to have been opened, the procedure involves determining whether or not safety measures will be implemented at a corresponding timing. It has, In the detection step, the operation cover is detected to have been opened at a timing corresponding to the fact that power can be transmitted to the work equipment. A program that causes a computer to execute something.

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