Construction support system

Abstract

The present invention aims to provide a construction support system capable of optimizing safety and productivity in a construction site work. Therefore, a construction support system having a safe construction support function that contributes to reducing the risk of workers and work machines in a construction site includes a server that collects operation information of work machines arranged in the construction site, and a communication network that connects the work machines and the server, the server measures the number of actions of the safe construction support function, calculates the safety awareness level of the workers working in the construction site based on the number of actions, and sends to a receiving device.

Description

TECHNICAL FIELD

[0001] The present application relates to a construction support system that supports construction of a working machine or the like. BACKGROUND

[0002] A worker who performs work around a working machine such as a construction machine or a mobile crane has a risk of being caught or drawn in by the working machine. Therefore, the worker can reduce the risk by performing work while being distanced from the working machine, but it is also conceivable to approach the working machine in order to assist work of the working machine or the like. Generally, safety and productivity are in an inverse relationship, and if the worker distances from the working machine in order to improve safety, productivity is reduced, and if the worker approaches the working machine in order to improve productivity, safety is reduced.

[0003] Patent Literature 1 provides an excavator that can ensure safety of a worker around the excavator, which has a person detection mechanism that detects a person within a prescribed range around the excavator, and a controller that, before an action of a hydraulic actuator, determines whether the person detection mechanism detects a person at each prescribed control cycle, and if a person is detected, prohibits any one of a rotation action, a travel action, and a digging action. Thus, the excavator prohibits an action when a worker around the excavator is detected, and safety of the worker is ensured. As such, an effort is made to reduce the risk of an accident by using a function (safety construction support function) that detects a worker and prohibits an action or urges the worker to perform a safer action.

[0004] PRIOR ART DOCUMENT

[0005] PATENT LITERATURE

[0006] Patent Literature 1: Japanese Patent Application Publication No. 2019-7348 SUMMARY

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] The excavator of Patent Literature 1 ensures safety of a worker around the excavator by stopping the machine. Note that this function basically makes the same response to all workers, and the same action is performed for a worker who performs work with proper consideration of safety and a worker who lacks consideration of safety. In this case, the safety construction support function needs to be designed conservatively so as to be able to reduce the risk of an accident also for a worker who lacks consideration of safety, and there is a case where excessive safety construction support (support to reduce the risk of an accident by the safety construction support function) is performed for a worker who performs work with proper consideration of safety. Excessive safety construction support sometimes excessively limits an action of the working machine, and there is a possibility that productivity deteriorates.

[0009] The present application has been made in view of the above problems, and has an object to provide a construction support system capable of optimizing safety and productivity in construction site work.

[0010] Means for solving the problems

[0011] To achieve the above object, the construction support system according to the present application has a safe construction support function that contributes to reducing the risk of workers and work machines in a construction site, and is characterized by comprising: a server that collects operation information of work machines arranged in the construction site; a communication network that connects the work machines and the server and the reception device; and a reception device that can receive information transmitted from the server, the server measuring the number of actions of the safe construction support function, calculating a safety awareness level of workers in the construction site work based on the number of actions, and transmitting the safety awareness level to the reception device.

[0012] According to the construction support system according to the present application configured in the above manner, it is possible to grasp to what extent the workers in the construction site work safely (safety awareness level), and by changing the control parameters of the safe construction support function in correspondence with the safety awareness level of the workers who are the objects of the safe construction support function, it is possible to prevent excessive safe construction support from being implemented, and to improve the productivity of work. In addition, by prompting the supervisor of the construction site of the safety awareness level of the workers, it is also possible to implement safety education and the like of safety awareness to the workers who have a low safety awareness level (relatively lack safety consideration).

[0013] Effects of the Invention

[0014] According to the construction support system according to the present application, it is possible to optimize safety and productivity in construction site work. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a whole view of the construction support system according to the embodiment of the present application.

[0016] Figure 2 is a configuration view of the construction support system according to the embodiment of the present application.

[0017] Figure 3 is a functional block diagram of the construction support system according to the embodiment of the present application.

[0018] Figure 4 is a view showing an example of information transmitted from the number of actions measuring function to the safety awareness level estimation function.

[0019] Figure 5 is a view showing an example of the number of actions information of a certain worker stored in the safety awareness level estimation function.

[0020] Figure 6 Fig. 1 is a diagram showing an example of contents transmitted by the transmission function.

[0021] Figure 7 Fig. 2 is a diagram showing another example of contents transmitted by the transmission function. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the present application will be described using the drawings and the like. The following description shows specific examples of the gist of the present application, and the present application is not limited to these descriptions, and a person skilled in the art can make various modifications and corrections within the technical idea disclosed in the present specification. In addition, in all the drawings for describing the present application, there are cases where the same reference numerals are attached to parts having the same function and repeated description thereof is omitted.

[0023] Figure 1 Fig. 1 is a diagram showing an example of contents transmitted by the transmission function.

[0024] The work machine 2 includes all machines such as construction machines and transport vehicles that work at a construction site. The work machine 2 has a communication device 23, a controller 21, and has a function of automatically or semi-automatically operating by the controller 21. Note that, in the present embodiment, a hydraulic excavator is illustrated as the work machine 2.

[0025] The work person 3 is a person who works within a construction site, and operates the work machine 2, assists the work of the work machine 2, or works within the construction site independently of the work machine 2.

[0026] The wearable device 4 is a device that the work person 3 wears on the body, and has a controller 41, a communication device 45, an output HMI 44 such as a speaker and a monitor, and an input HMI 43 such as a touch panel and a button. In the present embodiment, a wristwatch type configuration is illustrated as the wearable device 4, but it can be a glasses type or other shapes.

[0027] The environmental setting sensor 5 is provided in the construction site, and includes a camera, a laser sensor, a temperature sensor, a humidity sensor, and the like, and is used to acquire environmental information. In addition, the communication device 53 is provided in the same manner as the work machine 2 and the wearable device 4. The communication device 6 is a device that can be connected to the same network in the construction site, and is constituted by an access point of a wireless LAN (Local Area Network), and the like. The server 7 is a computer connected to the communication network 61 of the communication device 6. The reception device 8 is a device (computer, FAX, and the like) that can receive information transmitted from the server 7 via the communication network 61 or other communication means. The reception device 8 is provided, for example, in the work site of the construction manager or the safety supervisor, or in an office or the like that is remote from the work site.

[0028] The work machine 2, the wearable device 4, and the environmental setting sensor 5 can be connected to the communication network 61 provided by the communication device 6 via the communication devices possessed by each of them, and can communicate with the server 7 connected to the same network to transmit information.

[0029] Figure 2 is a configuration diagram of the construction support system 1. The work machine 2 has a work device 24 (a front mechanism constituted by a boom, a stick, a bucket, and the like in the case of a hydraulic excavator, for example) that performs various work, and the work device 24 is controlled by a controller 21. The controller 21 further controls a safety construction support function, and counts the number of times of operation thereof. The safety construction support function is, for example, a function that detects the position of the worker 3 around the machine, and if the worker 3 intrudes into a prescribed range, reduces or stops the operation of the machine, or warns the worker 3 by sound, display, or the like, or notifies the worker 3 of the state of the machine to encourage the worker 3 to take safety action, and the like, and is basically a function that automatically operates in response to the action of the worker 3 that is highly risky, and helps to reduce the risk of accidents.

[0030] The work machine 2 includes a sensor 22 that measures the position of the work machine 2 itself using a GPS (Global Positioning System) or the like, or acquires the position, identification information, or the like of a worker 3 in the vicinity of the work machine 2, a buzzer, a speaker, a lamp, an LED (Light Emitting Diode), a display, or the like that outputs an HMI (Human Machine Interface) 25 that notifies the worker 3 in the vicinity of the work machine 2 of the state of the machine or issues a warning, a communication device 23 that communicates with the outside and counts the number of times of operation of a safety construction support function executed in the work machine 2, or the like. Information measured by the sensor 22 is transmitted to the controller 21. The output HMI 25 is connected to the controller 21 and controls the output of sound, light, or the like. In addition, the controller 21 can exchange information with the outside of the machine via the communication device 23. The communication device 23 is connected to a communication network 61 provided in the construction site by the communication device 6.

[0031] The wearable device 4 is provided with an input HMI 43 composed of a touch panel, a button, a switch, or the like, an output HMI 44 composed of a monitor, a speaker, a vibration device, or the like, a controller 41 that controls each HMI and the identification information of the worker 3, a sensor 42 composed of a GPS or the like that measures biological information such as the heart rate of the worker 3 wearing the device, position information, or the like, a communication device 45 that communicates with the outside, or the like. Position information and the like of the worker 3 measured by the sensor 42 is transmitted to the controller 41. In addition, the controller 41 can exchange information with the outside of the device via the communication device 45. The communication device 45 is connected to the communication network 61. The controller 41 further controls a safety construction support function that warns the worker 3 or the like by the output HMI 44 and counts the number of times of operation thereof.

[0032] The environment setting sensor 5 includes a sensor 52 composed of a camera, a laser sensor, or the like that measures the position, identification information, or the like of a moving body in the surroundings, a controller 51 that transmits the measured information of the sensor 52 and performs processing to convert it into a physical value, other information, or the like, and a communication device 53 that is connected to the communication network 61 and exchanges information with the outside by the controller 51.

[0033] The server 7 is connected to the communication network 61 by wire or wirelessly and can acquire information of the work machine 2, the wearable device 4, the environment setting sensor 5, or the like connected to the same network or transmit internal information.

[0034] The work machine 2, the wearable device 4, and the environment setting sensor 5 are not limited to one within the construction site, and can be provided separately in plural or not at all. In addition, the position of the worker 3, the identification information, the number of times of action of the safety construction support function, and the like can be acquired by any one of the work machine 2, the wearable device 4, and the environment setting sensor 5.

[0035] Figure 3 is a functional block diagram of the construction support system 1. The construction support system 1 has, as main functions, the safety construction support function 2a acting in the work machine 2, the safety construction support function 4a acting in the wearable device 4, the number of times of action measuring function 7a acting in the server 7, the safety awareness level estimation function 7b, and the transmission function 7c.

[0036] The safety construction support function 2a acting in the work machine 2 is to detect the position of the worker 3 in the vicinity, and in the case where the worker 3 approaches the work machine 2, to automatically delay or stop the action of the travel, the turning, the work device 24, and the like of the work machine 2 against the operation of the operator, thereby being able to prevent or mitigate the accident of the worker 3 colliding with, being caught in, or being crushed by the work machine 2. Also, the safety construction support function 2a is to detect the position of the worker 3 in the vicinity, and in the case where the worker 3 approaches the work machine 2, to warn the worker 3 of the approach using the output HMI 25 in the display of sound, light, text, and figure, thereby being able to alert or make the worker 3 aware of the presence of the work machine 2 to prevent or mitigate the accident. The action state of the safety construction support function 2a (the execution state of the action delay or stop or the execution state of the warning, the identification information of the worker 3 as the object) is transmitted to the number of times of action measuring function 7a of the server 7 via the communication network 61. Also, there is a case where the safety construction support function 2a is constituted of plural safety construction support functions.

[0037] The safety construction support function 4a acting in the wearable device 4 compares the position of the work machine 2 obtained from the work machine 2 via the communication network 61 with the position of itself, and in the case where the distance is within a certain distance, warns the worker 3 of the approach of the work machine 2 using the output HMI 44 in the display of sound, vibration, text, and figure, thereby being able to alert or make the worker 3 aware of the presence of the work machine 2 to prevent or mitigate the accident. The action state of the safety construction support function 4a (the execution state of the warning, the identification information of the worker as the object of the warning) is transmitted to the number of times of action measuring function 7a of the server 7 via the communication network 61. Also, there is a case where the safety construction support function 4a is constituted of plural safety construction support functions.

[0038] In server 7, the action count measurement function 7a receives the action status of safety construction support functions 2a and 4a, and counts the number of times each worker performs a safety construction support function action. The action status information of the safety construction support function includes which function caused which worker 3 to perform the action. Within a certain measurement span, the function counts how many times each worker 3 on the construction site performs each safety construction support function action, and sends this information to the safety awareness level estimation function 7b. It should be noted that the measurement span can be several hours, one day, one week, etc., and can be freely set by the construction manager. Preferably, if the safety awareness level of the workers 3 on site is assumed to be low, the measurement span is set to be short; if it is assumed to be high, the measurement span is set to be long. When the current measurement span ends and the next measurement span begins, all counts are reset to zero.

[0039] Figure 4 This is an example of information sent from the action count measurement function 7a to the safety awareness level estimation function 7b. In this example, it shows a scenario where there are 4 workers (workers A to D) on-site and 4 safety construction support functions (functions A to D) operating in the on-site construction support system. Information about which worker 3 activated which safety construction support function a certain number of times within the current measurement span is transmitted to the safety awareness level estimation function 7b.

[0040] exist Figure 4 In this context, function A is one of the safety construction support functions 2a installed on the controller 21 of the working machinery 2. It automatically stops the operation of the working machinery 2 when the operator 3 approaches within 10 meters of it. Function B is also one of the safety construction support functions 2a installed on the controller 21 of the working machinery 2. It automatically reduces the speed of the working machinery 2 to 50% of its maximum speed when the operator 3 approaches within 15 meters of it. The "X% of maximum speed" mentioned here refers to the control parameter of the safety construction support function 2a, which can be changed according to the safety awareness level of the operator 3.

[0041] Function C is one of the safety construction support functions 4a installed in the controller 41 of the wearable device 4, and is a function in which the wearable device 4 automatically issues an alarm to the wearer in the form of vibration and sound (large volume) when the worker 3 (wearer) wearing the wearable device 4 approaches the work machine 2 to a distance of 12 m or less. Function D is one of the safety construction support functions 4a installed in the controller 41 of the wearable device 4, and is a function in which the wearable device 4 automatically issues an alarm to the wearer in the form of vibration and sound (small volume) when the wearer of the wearable device 4 approaches the work machine 2 to a distance of 12 m or more and 17 m or less. The volume and the magnitude of vibration of the wearable device 4 are control parameters of the safety construction support functions 4a, and can be changed in correspondence with the safety awareness level of the worker 3.

[0042] The safety awareness level estimation function 7b operating in the server 7 is a function that stores the number of operations of each worker of the safety construction support functions transmitted from the number-of-operations measuring function 7a including past measurement spans, and estimates the safety awareness level of the worker 3 from the number of operations of each function also including the past. Figure 5 This is an example of the number-of-operations information of a certain worker 3 stored in the safety awareness level estimation function 7b. Here, a case in which the number of safety construction support functions operating in the construction support system at the site is four (functions A to D) is shown, and the number of times each safety construction support function is operated by the worker of the storage target at each measurement span is arranged in order of the time series of the measurement spans. In the safety awareness level estimation function 7b, these pieces of information are used to estimate the safety awareness level of the worker 3. The estimation method of the safety awareness level considers a variety of methods, and the simplest method uses a value obtained by totaling the number of operations of each function, and for example, can be calculated by the following formula.

[0043] [Equation 1]

[0044]

[0045] In the above formula, L i represents the safety awareness level estimation value of the i-th worker 3, C i s，f represents the number of operations of the f-th safety construction support function in the s-th measurement span of the i-th worker 3, and N fThe total number of safety construction support functions is represented, a and b represent the numbers of measured spans, and the reciprocal of a value obtained by adding 1 to the sum of the number of times of all actions of the worker 3 in the measured spans from the a-th to the b-th is set as the safety awareness level. Using this formula, the safety awareness level of the worker 3 whose number of actions is zero is 1, and the safety awareness level approaches zero as the number of actions increases. The safety awareness level is a numerical value that quantifies the degree of safety consideration of the worker 3, and adopts a value of, for example, 0 to 1. If 1 is defined to represent the state in which the safety awareness is the highest and 0 represents the state in which the safety awareness is the lowest, then according to the above formula, the more the safety construction support function acts, the lower the safety awareness level of the worker 3 becomes. That is, it is estimated that the safety awareness level of the worker 3 who approaches the work machine 2 by chance and causes the safety construction support function to act is low.

[0046] There are various safety construction support functions, and the conditions for acting are different. It can also be considered that the safety awareness level for the number of actions for one time differs in weight between the safety construction support function that acts in a state of higher risk (for example, a position that is closer to the work machine than 1 m) and the safety construction support function that acts in a state of lower risk than that (for example, a position that is closer to the work machine than 1 m but less than 5 m). Therefore, the estimation method of the safety awareness level can also consider, for example, the following formula.

[0047] [Equation 2]

[0048]

[0049] In the above formula, ωf represents the weight of the f-th safety construction support function. For each safety construction support function, the weight ωf is set in correspondence with the risk height (urgency) of the condition for acting, and the sum of the number of actions considering the weight is used for the safety awareness level estimation. In the case of the functions A to D described in Figure 4 In the case of the functions A to D described in

[0050] The safety awareness level of each worker 3 estimated by the safety awareness level estimation function 7b is fed back to each safety construction support function 2a, 4a in association with the identification information of the worker 3 via the communication network 61. Thus, the safety construction support function 2a, 4a can appropriately select its action in correspondence with the safety awareness level of the subject, thereby performing an action that optimizes safety and productivity. In the case of a safety construction support function that, for example, detects the approach of a worker 3 to a work machine 2 and decelerates the action, in the case where the safety awareness level of the worker 3 as the subject is high, the degree of deceleration is moderated within a range in which the safety of the worker 3 with the high safety awareness level can be ensured, so as not to impair productivity. On the other hand, in the case where the safety awareness level of the worker 3 as the subject is low, the degree of deceleration is enhanced within a range in which the safety of the worker 3 with the low safety awareness level can be ensured, so as to improve safety even at the sacrifice of part of the productivity. In this way, by improving the productivity as much as possible in correspondence with the safety awareness level of the worker 3 as the subject on the basis of ensuring necessary safety, optimization of safety and productivity is achieved.

[0051] The transmission function 7c, which operates in the server 7, is a function that accepts the safety awareness level of each worker 3 estimated by the safety awareness level estimation function 7b and transmits the safety awareness level of the worker 3 at the construction site in the form of a table, a report, or the like to the reception device 8. On the basis of this function, the construction manager, the safety supervisor, can regularly accept the safety awareness level of the worker 3 at the site via the reception device 8, and can easily find the worker 3 with a low safety awareness level. By again giving safety education to the worker 3 with a low safety awareness level, or the like, the safety awareness level is improved, the safety awareness level of the entire site is improved, and thus the safety and productivity at the construction site are more optimized, and a safe and high-productivity construction can be implemented.

[0052] The transmission function 7c transmits the safety awareness level estimation result to the reception device 8 with a span of one week or the like, for example, after the work of the day ends. The transmission can be performed in the form of, for example, a facsimile, an e-mail, or the like, or in the form of uploading to a web page. The content of the transmission can include only the safety awareness level estimation value of each worker 3, but past estimation values can also be posted on the basis of the latest estimation value, and the evolution of the safety awareness level can be clearly and easily prompted. Figure 6 and Figure 7 is an example of the content transmitted by the transmission function 7c, Figure 6 is an example in which the latest week and the results of the past three weeks of the safety awareness level estimation value estimated with a span of each week are prompted in the form of a table, Figure 7 is a table in which Figure 6An example of the case where the same content is presented in the form of a report in which a line graph is additionally displayed. Such information is periodically transmitted to the construction manager, safety supervisor, and the like by the transmission function 7c, and is useful for planning appropriate work allocation, arrangement, re-education, and the like of the workers 3 on the site in correspondence with the safety awareness level of each worker 3, or for planning a change in safety measures used on the site in correspondence with the safety awareness level of the site as a whole. In addition, in the example shown in FIG. 9, the average of the safety awareness levels of the workers A to D is also output on the basis of the safety awareness levels of the workers A to D. Thus, the safety awareness level of the workers 3 as a whole working on the construction site can be grasped. Note that the safety awareness level of the whole is not limited to the average of the safety awareness levels of the workers 3, but can be a load average that takes into account, for example, the attributes of the workers 3 (whether they are skilled workers, what education they have received, and the like). Figure 7

[0053] In the present embodiment, in the construction support system 1 having the safety construction support function 2a, 4a that contributes to reducing the risks of the workers and the work machines on the construction site, including the server 7 that collects operation information of the work machines 2 arranged on the construction site and the communication network 61 that connects the work machines 2 and the server 7, the server 7 measures the number of actions of the safety construction support function 2a, 4a, and calculates and outputs the safety awareness level of the workers 3 working on the construction site on the basis of the number of actions.

[0054] According to the present embodiment configured in the above manner, it is possible to grasp to what extent the workers 3 on the construction site work while paying attention to safety (safety awareness level), and by changing the control parameters of the safety construction support function 2a, 4a in correspondence with the safety awareness level of a certain worker 3 among the targets of the actions of the safety construction support function 2a, 4a, it is possible to prevent excessive safety construction support from being implemented and to improve the productivity of work. In addition, it is also possible to implement safety education and the like that imparts safety awareness to the workers 3 whose safety awareness level is low (relatively lacking in safety considerations) by presenting the safety awareness level of the workers 3 to the supervisors on the construction site. As a result, it is possible to optimize safety and productivity in the work on the construction site.

[0055] In addition, the server 7 measures the number of actions of the safety construction support function 2a, 4a installed in the controllers 21, 41 mounted on the work machines 2 or the wearable devices 4. Thus, it is possible to individually notify the workers 3 who are at high risk of danger of warnings.

[0056] In addition, in the case where there are a plurality of workers 3 on the construction site, the server 7 calculates the safety awareness level for each of the plurality of workers 3. Thus, it is possible to optimize the actions of the safety construction support function 2a, 4a in correspondence with the safety awareness level of each worker.​

[0057] In addition, in a case where a plurality of workers 3 are present at the construction site, the server 7 calculates the safety awareness level for the entire plurality of workers 3. Thus, it is possible to grasp the overall safety awareness level of the plurality of workers 3 working at the construction site.

[0058] In addition, the server 7 calculates the safety awareness level corresponding to the number of operations of the safety construction support function 2a, 4a, based on a relational expression set so as to decrease the safety awareness level in accordance with an increase in the number of operations of the safety construction support function 2a, 4a. Thus, it is possible to objectively estimate the safety awareness level of the worker 3 working at the construction site.

[0059] In addition, the construction support system 1 has a plurality of safety construction support functions 2a, 4a having different degrees of urgency, and the server 7 measures the number of operations of each of the plurality of safety construction support functions 2a, 4a, calculates the sum of the product of the number of operations of each of the plurality of safety construction support functions 2a, 4a and the weight ωf corresponding to the degree of urgency of each of the plurality of safety construction support functions 2a, 4a, as the number of operations of the entire plurality of safety construction support functions 2a, 4a. Thus, the higher the degree of urgency of the safety construction support function, the greater the degree of decrease in the safety awareness level in accordance with an increase in the number of operations, and thus it is possible to improve the estimation accuracy of the safety awareness level.

[0060] In addition, the server 7 has a function of transmitting the safety awareness level. Thus, the construction manager, the safety supervisor, and the like can regularly receive the safety awareness level of the worker 3 at the site, and can easily find the worker 3 having a low safety awareness level. By again providing safety education and the like to the worker 3 having a low safety awareness level, it is possible to strive to improve the safety awareness level, and by improving the overall safety awareness level at the site, it is possible to realize optimization of the safety and productivity at the construction site, and to implement safe and high-productivity construction.

[0061] In addition, the controller 21, 41 receives the safety awareness level output from the server 7 via the communication network 61, and changes the control parameter of the safety construction support function 2a, 4a in accordance with the safety awareness level. Thus, since it is possible to relax the operation restriction based on the safety construction support function 2a, 4a in accordance with the safety awareness level of the worker 3 working at the construction site, it is possible to automatically optimize the safety and productivity in the construction site work.

[0062] The above describes the embodiments of the present application in detail, but the present application is not limited to the above-described embodiments, and various modifications are included. For example, the above-described embodiments are detailed descriptions made for the purpose of clearly and easily explaining the present application, and are not limited to having all the configurations described.

[0063] Explanation of Reference Signs

[0064] 1 … construction support system, 2 … work machine, 2a … safety construction support function, 21 … controller, 22 … sensor, 23 … communication device, 24 … work device, 25 … output HMI, 3 … work person, 4 … wearable device, 4a … safety construction support function, 41 … controller, 42 … sensor, 43 … input HMI, 44 … output HMI, 45 … communication device, 5 … environment setting sensor, 51 … controller, 52 … sensor, 53 … communication device, 6 … communication device, 61 … communication network, 7 … server, 8 … reception device.

Claims

1. A construction support system having a safety construction support function that helps reduce the risks to workers and machinery at construction sites, the construction support system being characterized by comprising: server; A controller mounted on the operating machinery located at the construction site; A controller mounted on a wearable device worn by workers at the construction site; A communication network that connects the controller of the operating machinery, the controller of the wearable device, and the server; as well as A receiving device capable of receiving information sent from the server. The controller of the work machinery is equipped with a safety construction support function that slows down or stops the movement of the work machinery based on the position information of the workers detected by sensors mounted on the work machinery. The wearable device's controller is equipped with a safety construction support function that warns workers of approaching machinery based on the location information of the work machinery received from the machinery's controller via the communication network and the wearable device's location information. The server measures the number of actions of the safety construction support function on the controller of the operating machinery and the safety construction support function on the controller of the wearable device, calculates the safety awareness level of the operator based on the number of actions, and sends the safety awareness level to the receiving device.

2. The construction support system according to claim 1, characterized in that, When there are multiple workers at the construction site, the server calculates the safety awareness level for each of the multiple workers.

3. The construction support system according to claim 1, characterized in that, When there are multiple workers at the construction site, the server calculates the overall safety awareness level for all of them.

4. The construction support system according to claim 1, characterized in that, The level of safety awareness is a numerical value that quantifies the degree of safety considerations of the workers, ranging from 0 to 1.

5. The construction support system according to claim 4, characterized in that, The server calculates the safety awareness level based on a formula that states the level decreases as the number of actions of the safety construction support function on the controller of the operating machinery and the safety construction support function on the controller of the wearable device increases.

6. The construction support system according to claim 4, characterized in that, The safety construction support functions of the controller installed on the operating machinery and the safety construction support functions of the controller installed on the wearable device are assigned weights corresponding to their respective urgency levels. The server calculates the sum of the product of the number of actions of the safety construction support function installed on the controller of the operating machinery and the safety construction support function installed on the wearable device, and the weight corresponding to each urgency level of the safety construction support function installed on the controller of the operating machinery and the safety construction support function installed on the wearable device. This sum is taken as the total number of actions of the safety construction support function installed on the controller of the operating machinery and the safety construction support function installed on the wearable device.

7. The construction support system according to claim 1, characterized in that, The controller receives the safety awareness level output from the server via the communication network and changes the control parameters of the safe construction support function accordingly.

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