Remote Safety Management System

Abstract

To provide a remote safety management system capable of remotely managing safety on a construction site and remotely issuing an alert to the construction site promptly as needed, and a remote safety management method.SOLUTION: A remote safety management system 70 comprises: a construction machine 10 including various sensors 15 and an alarm 20 electrically connected with the sensors 15 via signal circuits; a transmitter 30 which is electrically connected to the signal circuits and acquires an alert signal acquired in the sensor 15; a server device 50 which receives the alert signal transmitted from the transmitter 30 and transmits an alert content information signal corresponding to the received alert signal; and a management terminal 60 which receives the alert content information signal and displays alert content information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a remote safety management system. Mu Regarding. [Background technology]

[0002] At construction sites, multiple types of vehicles, such as heavy machinery and trucks, are frequently in operation, and accidents involving collisions between vehicles and workers are a major concern. Furthermore, accidents such as cranes tipping over due to overloading or suspended loads falling are also a major concern. There are a variety of alert systems at construction sites, including those equipped on various types of construction machinery (for example, human detection systems on backhoes and tricolor lights indicating the load on cranes), as well as technologies that issue alerts based on data transmitted from measuring devices such as various sensors and IoT (Internet of Things) devices, but all of these systems primarily issue alerts directly to construction personnel on the site.As a result, at construction sites with a complex network of construction machinery, for example, alerts can be drowned out by noise and poor visibility, and alerts are often not adequately communicated to workers or construction machinery operators who are in imminent danger of collision injuries, or to construction machinery operators who are in imminent danger of tipping over due to an overloaded load.

[0003] For these reasons, there is a need for a system and method that allows alerts issued at a construction site to be transmitted to the construction site's management building, which is located a short distance from the construction site, or to related departments or safety management departments, etc., located far away from the construction site, and that allows safety management (safety monitoring) within the construction site to be carried out remotely. For example, remote safety management within a construction site will enable prompt alerts to be sent to workers or construction machinery operators who are unaware of danger, dramatically improving construction safety at the site.

[0004] Patent Document 1 proposes a hazard monitoring system, which is a work area monitoring system for heavy machinery, that prevents heavy machinery or parts of it from entering a danger zone while the heavy machinery is in operation without erecting barricades or deploying guides. More specifically, this hazard monitoring system includes an imaging device that captures images of moving objects and the vicinity of the moving objects and outputs video signals, and an image processing device that receives the video signals from the imaging device, separates the moving object from the background for each frame of the video signal, divides the background into multiple zones, and outputs a specific zone intrusion signal when at least a part of the outline of the moving object is located in a predetermined zone. This image processing device includes a specific zone setting device that sets the specific zone, and an alarm signal generator that outputs an alarm signal in response to the specific zone intrusion signal from the image processing device. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-175992 Summary of the Invention [Problem to be solved by the invention]

[0006] The danger monitoring system described in Patent Document 1 is an extremely complex system in which an imaging device captures images of moving objects and outputs a video signal, an image processing device separates the moving object from the background from this video signal, and outputs a specific zone intrusion signal when the moving object is located in a predetermined zone where the background is divided into multiple parts.Since it is expected to take time for the analysis results to be obtained, it is difficult for managers who manage safety at construction sites remotely to quickly issue alerts to the construction site as needed.

[0007] The present invention provides a remote safety management system that can remotely manage the safety of a construction site and can quickly issue an alert to the construction site from a remote location as needed. M It is intended to provide. [Means for solving the problem]

[0008] In order to achieve the above object, one aspect of the remote safety management system according to the present invention is to a construction machine including various sensors and an alarm electrically connected to the sensors via a signal circuit; a transmitter electrically connected to the signal circuit and configured to receive an alert signal from the sensor; a server device that receives an alert signal transmitted from the transmitter and transmits an alert content information signal corresponding to the received alert signal; The system is characterized by having a management terminal that receives the alert content information signal and displays the alert content information.

[0009] According to this aspect, a transmitter is electrically connected to the signal circuit of a sensor and an alarm that are electrically connected via a signal circuit equipped on the construction machine, and an alert signal transmitted from the transmitter is received from a server device which transmits an alert content information signal corresponding to the alert signal to a management terminal, and alert content information based on the alert content information signal is displayed on the management terminal, thereby enabling the management terminal to identify the degree of danger of various construction machines at the construction site, and enabling a remote manager or the like to quickly issue an alert to the construction site (or to construction personnel at the construction site) as necessary. The server device may be a cloud server device that allows multiple management terminals to send and receive data simultaneously, and the multiple management terminals may include a management computer in a management building at the construction site, smartphones or tablets carried by multiple construction managers at the construction site, computers in related departments at head office or branches, construction safety management departments, etc. Construction machinery includes various heavy machinery such as cranes, excavators, rock drills, and tunnel boring machines, as well as gantry cranes that travel inside tunnels, trucks that transport various materials and equipment, and even general vehicles. The sensors include a variety of sensors, such as load sensors that detect the load when lifting a load using a crane, human detection sensors such as cameras mounted on vehicles, temperature sensors that detect fires caused by damage to vehicle components such as the engine or various actuators, and pressure sensors that detect contact with the surrounding area. The alarm includes a buzzer that emits an alert sound, a backlight that emits an alert light, a three-color light, etc.

[0010] In addition, "alert signals" include a safe state signal (green signal) indicating that there is no dangerous state, a caution signal (yellow signal) indicating that there is imminent danger, and a danger signal (red signal) indicating that there is a dangerous state. Furthermore, the "alert content information" based on the alert content information signal is information according to the type of construction machinery and the type of sensor that is the source of the alert signal. As described above, if the alert content is a fire or the like caused by damage to the engine or various actuators, the alert content information will be information according to the degree of danger, such as the temperature detected by the temperature sensor being below the threshold and no abnormality, the temperature being below the caution threshold and there is a possibility of fire, the temperature being above the danger threshold and there is a risk of explosion due to fire, and urgent fire extinguishing or evacuation. The alert content information varies depending on the type of construction machinery and sensors, and the alert content is diverse, for example, alerts regarding a crane's lifted load exceeding the limit, or alerts regarding contact with surrounding equipment when moving heavy machinery.

[0011] In another aspect of the remote safety management system according to the present invention, an ID is assigned to the transmitter, and the alert signal with the ID assigned is transmitted to the server device; The server device is characterized in that it identifies the transmitter that transmitted the alert signal based on the ID of the received alert signal.

[0012] According to this aspect, the server device can identify the transmitter corresponding to the alert signal received based on the ID (identification) assigned to the transmitter, so that alert content information regarding a specific construction machine at a specific construction site corresponding to this transmitter can be accurately and promptly identified remotely.

[0013] In another aspect of the remote safety management system according to the present invention, the alert content information is alarm level information, the alarm is electrically connected to the sensor via the signal circuit corresponding to a plurality of alarm levels, The transmitter having the unique ID is electrically connected to the signal circuit of each alarm level.

[0014] According to this embodiment, a transmitter with a unique ID is electrically connected to a signal circuit between an alarm device and a sensor corresponding to multiple types of alarm levels, and the alert content information sent from the server device to the management terminal based on the alert signal emitted from the transmitter is alarm level information, so that the degree of danger of a specific construction machine at a specific construction site can be accurately and promptly determined remotely. For example, if the alarm is a three-color light, the signal circuits corresponding to the green, yellow, and red lights that light up according to the alarm level are connected to sensors mounted on the construction machinery, and one example is a configuration in which a total of three transmitters are electrically connected to each signal circuit.The IDs of the transmitters corresponding to the green, yellow, and red lights can be used to accurately determine the level (safe, caution, danger, etc.) of a specific type of danger (falling due to excessive lifting load, fire, contact with surroundings, etc.) for a specific construction machine at a specific construction site.

[0015] In another aspect of the remote safety management system according to the present invention, The server device a storage unit that stores an alert signal content database in which the alert content information of each of a plurality of types of alert signals is linked to the ID unique to the alert signal; an identification unit that identifies the alert content information from the alert signal content database based on the ID of the alert signal received from the transmitter; The system is characterized by having a communication unit that receives the alert signal transmitted from the transmitter and transmits the alert content information signal to the management terminal.

[0016] According to this aspect, in the server device, alert content information based on the alert signal is stored as an alert signal content database linked to an ID unique to the alert signal, and the alert content information identified from the alert signal content database is transmitted to the management terminal as an alert content information signal. This makes it possible to extremely quickly identify the alert content information, thereby shortening the time from when the alert signal is transmitted by the transmitter to when the alert content information is displayed and confirmed by the management terminal, making it possible to quickly issue an alert to a construction site from a remote management building, etc.

[0017] Furthermore, one aspect of the remote safety management method according to the present invention is to Process A includes transmitting an alert signal to a server device from a transmitter electrically connected to a signal circuit that electrically connects various sensors and alarms provided in the construction machine; a step B of transmitting an alert content information signal corresponding to the alert signal received by the server device to a management terminal; and a step C of displaying alert content information on the management terminal based on the received alert content information signal.

[0018] According to this aspect, a transmitter is electrically connected to the signal circuit of a sensor and an alarm that are electrically connected via a signal circuit provided on the construction machine, and an alert signal transmitted from the transmitter is received from a server device which transmits an alert content information signal corresponding to the alert signal to a management terminal, and alert content information based on the alert content information signal is displayed on the management terminal. This enables the management terminal to identify the degree of danger of various construction machines at a construction site, and enables a remote manager or the like to quickly issue an alert to the construction site as necessary. [Effects of the Invention]

[0019] The remote safety management system of the present invention Mu This allows safety management of the construction site to be carried out remotely, and alerts can be quickly issued to the construction site remotely as necessary. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a diagram illustrating an example of the overall configuration of a remote safety management system according to an embodiment. [Figure 2] FIG. 10 is a diagram showing an example of a circuit diagram in which a transmitter is connected to each signal circuit that connects a sensor and an alarm device corresponding to a plurality of alarm levels. [Figure 3] FIG. 2 illustrates an example of a hardware configuration of a server device and a management terminal. [Figure 4] FIG. 2 illustrates an example of a functional configuration of a server device. [Figure 5A] FIG. 10 is a diagram showing an example of alert content information displayed on the display screen of the management terminal. [Figure 5B] FIG. 10 is a diagram showing another example of alert content information displayed on the display screen of the management terminal. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, a remote safety management system and a remote safety management method according to an embodiment will be described with reference to the accompanying drawings. In this specification and drawings, substantially identical components are designated by the same reference numerals, and redundant description may be omitted.

[0022] [Remote Safety Management System and Remote Safety Management Method According to the Embodiment] An example of a remote safety management system and a remote safety management method according to an embodiment will be described with reference to Figures 1 to 5. Here, Figure 1 is a diagram showing an example of the overall configuration of a remote safety management system according to an embodiment, and Figure 2 is a diagram showing an example of a circuit diagram in which transmitters are connected to respective signal circuits that connect sensors and alarms corresponding to a plurality of alarm levels.

[0023] Below, we will take a crane as an example of construction machinery, measure the crane's suspended load, and explain an example of remote safety management based on an alert signal corresponding to the level of the suspended load. However, construction machinery includes not only cranes but also various other heavy machinery, trucks, and general vehicles, and measurement targets include not only the suspended load but also the temperature of the construction machinery, nearby people or other construction machinery, and the pressure received when coming into contact with the surrounding area.

[0024] The illustrated remote safety management system 70 includes a crane 10 (an example of construction machinery), a server device 50 that receives, via a network 40, an alert signal transmitted from a transmitter 30 mounted on the crane 10, and a management terminal 60 that receives, via the network 40, an alert content information signal corresponding to the alert signal transmitted from the server device 50. Here, the illustrated server device 50 is a cloud server device. There may be multiple management terminals 60, and the multiple management terminals 60 may include a management computer (management terminal 60A) located in a management building at the construction site, smartphones or tablets carried by, for example, multiple construction managers at the construction site, and computers (management terminal 60B) located in related departments or construction safety management departments at head and branch offices.

[0025] Also, although not shown in the figure, surveillance cameras may be installed at various locations on the construction site, and the image data captured by the surveillance cameras may be transmitted to a server device 50 via the network 40, and then transmitted to a management terminal 60 via the server device 50, with both the alert signal and the image data being displayed on the management terminal 60.

[0026] The crawler crane 10 comprises a rotating body 12 and a running body 11 that runs while rotatably supporting the rotating body 12. The rotating body 12 is equipped with an operator's cabin and a working device for performing lifting work. The working device includes a boom 13, a hoisting rope 14a, a lifting rope 14b, a hook 14c, a lifting winch (not shown), and the like.

[0027] The boom 13 is attached to the front of the rotating body 12 so that it can be raised and lowered freely, and a hook 14c for suspending a load is suspended from the tip of the boom 13 via a hoisting rope 14b. The hoisting winch is mounted above the rotating body 12, and hoists and lowers the hook 14c by winding in and out the hoisting rope 14b.

[0028] A jib (not shown) that extends the boom length can also be provided at the tip of the boom 13, and the boom 13 is raised and lowered relative to the rotating unit 12 by changing the angle relative to the rotating unit 12. If a jib is not provided, the working radius of the crane 10, which is the radius of rotation of the hook 14c around the rotating unit 12, is set by setting the angle of the boom 13. If a jib is provided, the working radius of the crane 10 is determined by setting the angle of the boom 13 and then setting the angle of the jib.

[0029] In other words, the working radius of the crane 10 is a value determined by the inclination of the boom 13 and jib, and if the suspended load (load on the crane 10) is constant, the larger the working radius, the larger the moment generated by the suspended load, which may lead to the tipping of the crane 10 or damage to the boom 13 and jib. Therefore, the total rated load, which is the upper limit of the suspended load that the crane 10 can suspend, is determined by the working radius and the attitude of the crane 10 (the length of the boom 13 and jib and the combination thereof), etc.

[0030] The crane 10 shown in the figure is configured to divide the load condition (safety condition) for the rated total load related to the suspended load according to the working radius into three stages, and to issue an alert regarding the current safety condition via a three-color light 20 (an example of an alarm) mounted on the crane 10.

[0031] As one example, a load state of less than 70% of the total rated load related to the suspended load corresponding to the working radius is considered a safe state, and green light 23 (see FIG. 2) constituting the tri-color light 20 is turned on. On the other hand, a load state of 70% to 100% of the total rated load related to the suspended load corresponding to the working radius is considered a caution state, and yellow light 22 (see FIG. 2) constituting the tri-color light 20 is turned on. On the other hand, either a load state of more than 100% of the total rated load related to the suspended load corresponding to the working radius or a state in which the outriggers (not shown) are not extended is considered a dangerous state, and red light 21 (see FIG. 2) constituting the tri-color light 20 is turned on.

[0032] The crane 10 is equipped with transmitters 30A, 30B, and 30C corresponding to the red light 21, yellow light 22, and green light 23 that make up the three-color light 20, and a unique alert signal is sent to the server device 50 from the transmitter 30 corresponding to the alarm light that is lit according to the alarm level.

[0033] Here, the electrical connection configuration between each warning lamp, the suspended load sensor 15, and each transmitter 30 will be described with reference to FIG.

[0034] The revolving structure 12 has a built-in suspended load sensor 15 (an example of a sensor) and a load control unit 16, which are electrically connected to each other. The load control unit 16 determines the total rated load for the suspended load corresponding to the working radius based on the measured load data transmitted from the suspended load sensor 15 and the working radius data at that time. Here, the total rated load for the suspended load corresponding to the working radius is stored in a storage unit (not shown) as list table data, and the load control unit 16 may determine the total rated load by referring to the list table data based on the received measured load data and the working radius data at that time, or may directly calculate the total rated load from the received measured load data and the working radius data at that time.

[0035] The load control unit 16 compares the identified total rated load with the measured load data (data on the suspended load applied to the crane 10) and determines what percentage of the total rated load is acting on the crane 10.

[0036] A switch unit 17 is electrically connected to the load control unit 16, and a unique red light circuit 18A (an example of a signal circuit), a yellow light circuit 18B (another example of a signal circuit), and a green light circuit 18C (yet another example of a signal circuit) are electrically connected to the switch unit 17 and the red light 21, yellow light 22, and green light 23 that make up the three-color light 20. The three-color light 20 is further connected to a power source 19.

[0037] The switch unit 17 includes a red light switch 17A, a yellow light switch 17B, and a green light switch 17C, and the contacts of each switch are provided at the ends of the corresponding circuits.

[0038] The load control unit 16 identifies the load state of the crane 10 (what percentage of the total rated load the load state is), turns on a switch corresponding to the identified load state, and turns on a warning light connected to the circuit whose switch has been turned on.

[0039] Here, the red light circuit 18A, the yellow light circuit 18B, and the green light circuit 18C are electrically connected to corresponding transmitters 30A, 30B, and 30C, respectively.

[0040] Each transmitter 30A, 30B, 30C is assigned a unique ID, and therefore, an alert signal with the assigned ID is transmitted from each transmitter 30 to the server device 50. More specifically, IDs are assigned to the transmitters 30A, 30B, 30C corresponding to the red light 21, yellow light 22, and green light 23 that constitute the three-color light 20 mounted on a specific crane 10. As will be described in detail below, the server device 50 identifies the corresponding transmitter 30 based on the ID of the received alert signal, and transmits an alert content information signal (a signal indicating the load state of the crane 10, which may be the alert signal itself received by the server device 50) corresponding to the transmitter 30 to the management terminal 60.

[0041] Next, an example of the hardware configuration of the server device 50 and the management terminal 60 will be described with reference to FIG. 3, and an example of the functional configuration of the server device 50 will be described with reference to FIG.

[0042] As shown in FIG. 3, both the server device 50 and the management terminal 60 are configured by information processing devices (computers) such as personal computers (PCs).

[0043] The computer that constitutes the server device 50 and the management terminal 60 includes a CPU (Central Processing Unit) 51, a main memory device 52, an auxiliary memory device 53, an input / output IF (interface) 54, and a communication IF 55, which are interconnected by a connection bus 56. The main memory device 52 and the auxiliary memory device 53 are computer-readable recording media. Note that the above components may be provided separately, or some of the components may not be provided.

[0044] The CPU 51 is also called an MPU (Microprocessor) or a processor, and may be a single processor or a multiprocessor. The CPU 51 is a central processing unit that performs overall control of the server device 50 and the management terminal 60, which are made up of computers. The CPU 51, for example, deploys a program stored in the auxiliary storage device 53 in an executable form in the working area of ​​the main storage device 52, and controls peripheral devices through the execution of the program, thereby providing functions that meet a predetermined purpose.

[0045] The main memory device 52 stores computer programs executed by the CPU 51, data processed by the CPU 51, etc. The main memory device 52 includes, for example, a flash memory, a RAM (Random Access Memory), and a ROM (Read Only Memory). The auxiliary memory device 53 stores various programs and various data on a readable and writable recording medium, and is also referred to as an external memory device. The auxiliary memory device 53 stores, for example, an OS (Operating System), various programs, various tables, etc. The OS includes, for example, a communication interface program that exchanges data with external devices connected via the communication IF 55. The external devices for the server device 50 include the transmitter 30 and the management terminal 60, and the external devices for the management terminal 60 include, in addition to the server device 50, smartphones and tablets carried by operators of the crane 10 and construction managers at the construction site.

[0046] The auxiliary storage device 53 is used, for example, as a storage area that supplements the main storage device 52, and stores computer programs executed by the CPU 51, data processed by the CPU 51, etc. The auxiliary storage device 53 is a silicon disk including nonvolatile semiconductor memory (flash memory, EPROM (Erasable Programmable ROM)), a hard disk drive (HDD: Hard Disk Drive), a solid state drive, etc. Examples of the auxiliary storage device 53 include drives for removable recording media such as CD drives, DVD drives, and BD drives, and examples of the removable recording media include CDs, DVDs, BDs, USB (Universal Serial Bus) memories, and SD (Secure Digital) memory cards.

[0047] The input / output IF 54 is an interface for inputting and outputting data between the server device 50 and devices connected to the management terminal 60. Input devices such as a keyboard, a touch panel, a mouse or other pointing device, and a microphone are connected to the input / output IF 54. Both the server device 50 and the management terminal 60 receive, via the input / output IF 54, operation instructions and the like from an operator who operates an input device.

[0048] Furthermore, display devices such as liquid crystal panels (LCD: Liquid Crystal Display) and organic EL panels (EL: Electroluminescence) and other output devices such as printers and speakers are connected to the input / output IF 54. The management terminal 60 is configured to display, for example, specific alert content information (in the illustrated example, the load state of the suspended load) of a crane 10 (specific construction machine) at a specific construction site.

[0049] The communication IF 55 is an interface with the network 40 to which the server device 50 is connected. The communication IF 55 receives an alert signal with an ID assigned from the transmitter 30 via various networks 40, such as a public network such as the Internet, a wireless network such as a mobile phone network, a dedicated network such as a VPN (Virtual Private Network), or a LAN (Local Area Network), and similarly transmits an alert content information signal corresponding to the alert signal to the management terminal 60 via the network 40.

[0050] The communication IF 55 may also be an LPWA wireless communication module, and major LPWA communication methods (communication protocols) include Sigfox, LoRaWAN (Long Range Wide Area Network), and NB-IoT. LoRaWAN is a communication method that uses the 920 MHz ISM band and employs LoRa modulation, enabling long-distance communication even at low output power of 13 dBm or less. As mentioned above, among the various communication protocols, it is preferable to use private LoRa, which does not require a license, allows for the installation of private base stations inside tunnels (an example of a construction site) even in mountainous areas where mobile phone signals are difficult to reach, and allows for the construction of low-cost communication systems.

[0051] The communication IF 55 receives an alert content information signal from the server device 50 via the network 40 to which the management terminal 60 is connected, and transmits a remote alert issuance signal to a smartphone, tablet, etc. carried by the operator of the crane 10 or the construction manager at the construction site.

[0052] 4, the server device 50 provides various functions of at least a communication unit 510, an identification unit 520, a display unit 530, and a storage unit 540 by executing a program by a CPU 51. Here, at least a part of the processing functions may be provided by a DSP (Digital Signal Processor), a GPU (Graphics Processing Unit), or the like, and similarly, at least a part of the processing functions may be provided by a dedicated LSI (Large Scale Integration) such as an FPGA (Field-Programmable Gate Array), a numerical calculation processor, an image processing processor, or other digital circuits, or the like.

[0053] The communication unit 510 receives alert signals, each of which is transmitted from a transmitter 30 and has a unique ID attached thereto, as needed, and stores the received signals in the storage unit 540 as needed.

[0054] The storage unit 540 stores an alert signal content database in which the alert content information of each of multiple types of alert signals (in the illustrated example, alert signals from transmitters 30A, 30B, and 30C) is linked to an ID unique to the alert signal.

[0055] Here, the alert content information includes information that the load state is less than 70% of the total rated load for the suspended load according to the working radius and is a safe state, information that the load state is 70% to 100% of the total rated load for the suspended load according to the working radius and is a state that requires caution, information that the load state is more than 100% of the total rated load for the suspended load according to the working radius and is a dangerous state, or information that the outriggers are not extended.

[0056] The alert signal content database contains alert signals from transmitters that have been assigned IDs, and alert content information related to these alert signals. For example, in the illustrated example, the alert signal content database contains information such as that transmitter 30A, which has been assigned a unique ID, is connected to red light 21 of the three-color light 20 mounted on crane 10, a specific piece of construction machinery, and that the load exceeds 100% of the total rated load, indicating a dangerous condition.

[0057] Since multiple construction machines are in operation at a particular construction site, the alert signal content database includes the IDs of the various transmitters installed on each piece of construction machinery, and also includes alert content information related to the alert signal from each transmitter.

[0058] The identifying unit 520 identifies the alert content information from the alert signal content database based on the ID of the alert signal received from the transmitter 30 .

[0059] The identified alert content information is displayed on the display unit 530. Here, since the alert content information displayed on the display unit 530 of the server device 50 is not directly checked by a remote administrator or the like (the administrator or the like checks the alert content information on the display unit of their own management terminal 60), the server device 50 does not need to be equipped with the display unit 530.

[0060] The communication unit 510 transmits an alert content information signal relating to the alert content information identified by the identification unit 520 to the management terminal 60. Here, the management terminal 60 is a related computer that has access authority to the server device 50, and multiple management terminals 60 that have been granted access authority can share various data.

[0061] Although not shown, each management terminal 60 has at least a communication unit and a display unit. An alert content information signal relating to alert content information is received from the server device 50 via the communication unit.

[0062] The alert content information based on the received alert content information signal is displayed on the display unit of the management terminal 60. Here, Figures 5A and 5B are diagrams showing an example of the alert content information displayed on the display unit 610 (display screen) of the management terminal 60.

[0063] The alert content information shown in Figure 5A indicates that multiple types of construction machinery (Backhoe No. 1, No. 2, No. 3, Crane No. 1, No. 2, No. 3) are all in a safe condition, and also indicates that wind speed, rainfall, and noise are all below thresholds and there are no problems.

[0064] On the other hand, the alert content information shown in Figure 5B indicates that Backhoe No. 2 is in a dangerous state, that Crane No. 3 is in a state requiring caution, and further indicates that the noise level exceeds the caution threshold.

[0065] When a manager or other person remote from the construction site checks the display shown in Figure 5B, an emergency alert is sent to the construction site that Backhoe No. 2 is in a dangerous state, that Crane No. 3 is in a state requiring caution, and that the noise level is at a level requiring caution.

[0066] The remote safety management method according to the embodiment includes a step A in which an alert signal is sent from transmitters 30A, 30B, 30C electrically connected to signal circuits 18A, 18B, 18C that electrically connect a suspended load sensor 15 and a three-color light 20 provided on a crane 10, which is a construction machine, to a server device 50.

[0067] Furthermore, the method includes a step B of transmitting an alert content information signal corresponding to the alert signal received by the server device 50 to the management terminal 60.

[0068] Furthermore, there is a step C of displaying the alert content information on the management terminal 60 based on the received alert content information signal. A manager or the like who has confirmed the alert content information displayed on the management terminal 60 can, if necessary, quickly send an alert indicating a dangerous situation to the operator of a specific construction machine at the construction site or the construction manager or the like, thereby making it possible to remotely prevent accidents at the construction site.

[0069] The remote safety management system 70 and remote safety management method shown in the figure enable safety management of construction sites to be carried out remotely, and alerts can be quickly issued to the construction site remotely as necessary, thereby dramatically improving construction safety at construction sites.

[0070] It should be noted that the present invention is not limited to the configurations shown here, and other embodiments may be possible in which other components are combined with the configurations described in the above embodiments. In this regard, the present invention can be modified within the scope of the present invention, and can be appropriately determined depending on the application form. [Explanation of symbols]

[0071] 10: Crane (construction machinery) 11: Running body 12: Rotating body 13: Boom 14a: Descending rope 14b: Hanging rope 14c: Hook 15: Hanging load sensor (sensor) 16: Load control section 17: Switch unit 17A: Red light switch 17B: Yellow light switch 17C: Green light switch 18A: Red light circuit (signal circuit) 18B: Yellow light circuit (signal circuit) 18C: Green light circuit (signal circuit) 19: Power supply 20: Alarm (three-color light) 21: Red light 22: Yellow light 23: Green light 30: Transmitter 30A: Red light transmitter (transmitter) 30B: Yellow light transmitter (transmitter) 30C: Green light transmitter (transmitter) 40: Network 50: Server device 60, 60A, 60B: Management terminal 70: Remote safety management system 510: Communications Department 520: Specific part 530: Display section 540: Storage area 610: Display section

Claims

1. a construction machine including various sensors and an alarm electrically connected to the sensors via a signal circuit; a transmitter electrically connected to the signal circuit and configured to receive an alert signal from the sensor; a server device that receives an alert signal transmitted from the transmitter and transmits an alert content information signal corresponding to the received alert signal; a management terminal that receives the alert content information signal and displays the alert content information; an ID is assigned to the transmitter, and the alert signal with the ID assigned is transmitted to the server device; the server device identifies the transmitter that transmitted the alert signal based on the ID of the received alert signal; the alert content information is alarm level information, the alarm is electrically connected to the sensor via the signal circuit corresponding to a plurality of alarm levels, A remote safety management system, characterized in that the transmitter, to which the unique ID is assigned, is electrically connected to the signal circuit of each of the alarm levels.

2. a construction machine including various sensors and an alarm electrically connected to the sensors via a signal circuit; a transmitter electrically connected to the signal circuit and configured to receive an alert signal from the sensor; a server device that receives an alert signal transmitted from the transmitter and transmits an alert content information signal corresponding to the received alert signal; a management terminal that receives the alert content information signal and displays the alert content information; an ID is assigned to the transmitter, and the alert signal with the ID assigned is transmitted to the server device; the server device identifies the transmitter that transmitted the alert signal based on the ID of the received alert signal; The server device a storage unit that stores an alert signal content database in which the alert content information of each of a plurality of types of alert signals is linked to the ID unique to the alert signal; an identification unit that identifies the alert content information from the alert signal content database based on the ID of the alert signal received from the transmitter; A remote safety management system comprising: a communication unit that receives the alert signal transmitted from the transmitter and transmits the alert content information signal to the management terminal.

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