Construction support system

Abstract

The present invention aims to provide a construction support system capable of optimizing safety and productivity in work at a construction site. Accordingly, a construction support system having a safety construction support function that contributes to reducing risks to workers and work machinery at a construction site comprises a server that collects operation information of work machinery deployed at the construction site and a communication network that connects the work machinery and the server. The server measures the number of times the safety construction support function is operated, calculates the safety awareness level of the worker working at the construction site based on the number of operations, and transmits the result to a receiving device.

Description

Technology Field

[0001] The present invention relates to a construction support system that supports construction using work machinery, etc. Background Technology

[0002] Workers performing tasks near machinery, such as construction equipment or mobile cranes, face risks such as pinching or entanglement. Therefore, while workers can mitigate these risks by maintaining a distance from the machinery, there are also instances where they approach the equipment for purposes such as assisting with operations. Generally, safety and productivity are inversely related; thus, if a worker keeps their distance from the machinery to increase safety, productivity decreases, and if a worker moves closer to the machinery to increase productivity, safety decreases.

[0003] Patent Document 1 provides a shovel capable of ensuring the safety of surrounding workers, and includes a human body detection means for detecting a person within a predetermined range around the shovel, and a controller that determines at predetermined control cycles whether the human body detection means has detected a person before the hydraulic actuator moves, and prohibits any of the slewing, driving, or excavating movements if a person is detected. Accordingly, the shovel prohibits operation when it detects a surrounding worker, thereby ensuring the safety of the worker. Thus, there is a measure to reduce the risk of accidents by using a function that supports safe construction (safe construction support function), which detects a worker and prohibits operation, or encourages the worker to perform safer movements. Prior art literature

[0004] Japanese Patent Publication No. 2019-7348 The problem to be solved

[0005] The shovel of Patent Document 1 is intended to ensure the safety of surrounding workers by stopping the machine. However, this function basically responds equally to all workers, and behaves in the same way for workers who work with proper consideration for safety as well as for workers who lack consideration for safety. In this case, the safety construction support function must be designed conservatively so that the risk of accidents is lowered even for workers who lack consideration for safety, and there are cases where excessive safety construction support (support that lowers the risk of accidents through the safety construction support function) is provided to workers who work with proper consideration for safety. Excessive safety construction support may restrict the operation of the machine more than necessary, which may lead to a deterioration in productivity.

[0006] The present invention has been made in consideration of the above-mentioned problem, and its purpose is to provide a construction support system capable of optimizing safety and productivity in work at a construction site. means of solving the problem

[0007] To achieve the above objective, the present invention relates to a construction support system having a safety construction support function that contributes to reducing risks to workers and work machinery at a construction site, comprising: a server that collects operation information of work machinery deployed at the construction site; a communication network that connects the work machinery, the server, and the receiving device; and a receiving device capable of receiving information transmitted from the server. The server measures the number of times the safety construction support function is operated, calculates the safety awareness level of a worker working at the construction site based on the number of times it is operated, and transmits the safety awareness level to the receiving device.

[0008] According to the present invention configured as described above, it is possible to determine the extent to which a worker at a construction site is performing their work with consideration for safety (safety awareness level). By changing the control parameters of the safety construction support function according to the safety awareness level of the worker to whom the safety construction support function is activated, excessive safety construction support can be prevented, thereby improving work productivity. Furthermore, by presenting the worker's safety awareness level to the supervisor at the construction site, safety awareness can be instilled in workers with a low safety awareness level (relatively lacking consideration for safety) through safety education or the like. Effects of the invention

[0009] According to the construction support system of the present invention, it is possible to optimize safety and productivity in work at a construction site. Brief explanation of the drawing

[0010] FIG. 1 is an overall diagram of a construction support system according to an embodiment of the present invention. FIG. 2 is a configuration diagram of a construction support system according to an embodiment of the present invention. FIG. 3 is a functional block diagram of a construction support system according to an embodiment of the present invention. Figure 4 is a diagram illustrating an example of information sent from the operation count measurement function to the safety awareness level estimation function. Figure 5 is a diagram illustrating an example of information on the number of operations of a certain worker stored in the safety awareness level estimation function. Figure 6 is a diagram illustrating an example of a betrayal function betraying content. Figure 7 is a diagram illustrating other examples of the contents of a betrayal function. Specific details for implementing the invention

[0011] Embodiments of the present invention will be described below using drawings and the like. The following description illustrates specific examples of the content of the present invention, and the present invention is not limited to these descriptions, but various changes and modifications by those skilled in the art are possible within the scope of the technical concept disclosed in this specification. Furthermore, in the overall drawings for explaining the present invention, elements having the same function are given the same reference numerals, and their repeated description may be omitted.

[0012] FIG. 1 is an overall view of a construction support system (1) according to the present embodiment. The construction support system (1) is composed of a work machine (2), a wearable device (4) worn on the body by a worker (3), an environment installation sensor (5), a communication facility (6), a server (7), a receiving device (8), etc.

[0013] The work machine (2) includes all machines that perform work, such as construction machinery or transport vehicles operated at a construction site. The work machine (2) has a communication device (23) or a controller (21) and is equipped with a function that can be operated automatically or semi-automatically by the controller (21). In addition, in this embodiment, a hydraulic shovel is illustrated as an example of the work machine (2).

[0014] The worker (3) is a person who performs work within the construction site, and operates the work machine (2), assists in the work of the work machine (2), or performs work within the construction site independently of the work machine (2).

[0015] The wearable device (4) is a device worn on the body by a worker (3) and is equipped with a controller (41), a communication device (45), an output HMI (Human Machine Interface) (44) such as a speaker or monitor, and an input HMI (43) such as a touch panel or button. In this embodiment, a wristwatch-type wearable device (4) is illustrated as an example, but it may be a glasses-type or other shape.

[0016] The environmental installation sensor (5) is installed within the construction site and is equipped with a camera, laser sensor, temperature sensor, humidity sensor, etc., for acquiring environmental information. In addition, a communication device (53) is provided, similar to the work machine (2) or wearable device (4). It may be fixedly installed at the site or may be temporarily placed so that its location can be easily changed. The communication facility (6) is a facility that enables the construction site to be connected to the same network and is configured by a wireless LAN (Local Area Network) access point, etc. The server (7) is a computer connected to the communication network (61) of the communication facility (6). The receiving device (8) is a device (computer, FAX, etc.) capable of receiving information transmitted from the server (7) through the communication network (61) or other communication means. The receiving device (8) is provided, for example, within the work site where the construction manager or safety supervisor is located, or in an office located away from the work site.

[0017] The work machine (2), wearable device (4), and environment installation sensor (5) can each connect to the communication network (61) provided by the communication facility (6) through their respective communication devices, and thus enable information transmission through communication with the server (7) connected to the same network.

[0018] FIG. 2 is a configuration diagram of a construction support system (1). A work machine (2) has a work mechanism (24) that performs various tasks (for example, in the case of a hydraulic shovel, a front mechanism consisting of a boom, arm, bucket, etc.), and the work mechanism (24) is controlled by a controller (21). The controller (21) also controls the safety construction support function and counts the number of times it operates. The safety construction support function is a function that, for example, detects the location of a worker (3) around the machine and, if the worker (3) enters a predetermined range, slows down or stops the operation of the machine, warns the worker (3) by sound or display, or notifies the worker (3) of the machine's status to encourage safe behavior. Basically, it is a function that detects high-risk behaviors of the worker (3) and operates automatically to contribute to reducing the risk of accidents.

[0019] In addition, the work machine (2) is equipped with a sensor (22) that measures its own position using a GPS (Global Positioning System) or acquires location or identification information of a worker (3) around the work machine (2), an output HMI (Human Machine Interface) (25) such as a buzzer, speaker, light, LED (Light Emitting Diode), or display for notifying or warning the worker (3) around the work machine (2) of the machine's status, and a communication device (23) for communicating with the outside, such as the number of operations of safety construction support functions executed within the work machine (2). Information measured by the sensor (22) is transmitted to the controller (21). The output HMI (25) is connected to the controller (21), and the output of sound, light, etc. is controlled. Furthermore, the controller (21) can exchange information with the outside of the machine through the communication device (23). The communication device (23) is connected to a communication network (61) provided within the construction site by a communication facility (6).

[0020] The wearable device (4) is equipped with an input HMI (43) consisting of a touch panel, buttons, switches, etc., an output HMI (44) consisting of a monitor, speakers, vibration devices, etc., a controller (41) that controls each HMI and stores identification information of the worker (3), a sensor (42) consisting of a GPS, etc. that measures biometric information such as the heart rate of the worker (3) wearing it, and a communication device (45) for communicating with the outside. The location information 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 through the communication device (45). The communication device (45) is connected to a communication network (61). The controller (41) also controls safety construction support functions, such as warning the worker (3) via the output HMI (44), and counts the number of times the operation is performed.

[0021] The environment installation sensor (5) is equipped with a sensor (52) comprising a camera or laser sensor that measures the location or identification information of a moving object in the surroundings, a controller (51) that receives the measurement information of the sensor (52) and performs processing such as converting it into a physical value or other information, and a communication device (53) connected to a communication network (61) for the controller (51) to exchange information with the outside.

[0022] The server (7) is connected to the communication network (61) via wired or wireless connection and can acquire information from work machines (2), wearable devices (4), environmental sensors (5), etc. connected to the same network, or transmit internal information.

[0023] The work machine (2), wearable device (4), and environmental installation sensor (5) are not limited to one in the construction site; there may be multiple of each, or none at all. Additionally, the location and identification information of the worker (3), the number of times the safety construction support function is operated, etc., may be obtained from any of the work machine (2), wearable device (4), and environmental installation sensor (5).

[0024] FIG. 3 is a functional block diagram of a construction support system (1). The construction support system (1) has, as its main functions, a safety construction support function (2a) that operates on a work machine (2), a safety construction support function (4a) that operates on a wearable device (4), an operation count measurement function (7a) that operates on a server (7), a safety awareness level estimation function (7b), and a betrayal function (7c).

[0025] The safety construction support function (2a) operating on the work machine (2) detects the location of a nearby worker (3) and, when the worker (3) approaches the work machine (2), automatically slows down or stops the movement of the worker (3), such as driving, turning, or the work machine (24), in opposition to the operator's operation, thereby preventing accidents or reducing damage such as the worker (3) being hit, swept up in, or run over by the work machine (2). In addition, the safety construction support function (2a) detects the location of a nearby worker (3) and, when the worker (3) approaches the work machine (2), uses the output HMI (25) to warn the worker (3) of the approach by sound, light, text, or picture display, thereby urging the worker (3) to pay attention or making the worker (3) aware of the presence of the work machine (2), thereby preventing accidents or reducing damage. The operating status of such safety construction support functions (2a) (execution status of deceleration or stop of operation, execution status of warning, or identification information of the target worker (3)) is sent to the operation count measurement function (7a) of the server (7) via the communication network (61). Additionally, the safety construction support functions (2a) may be composed of multiple safety construction support functions.

[0026] The safety construction support function (4a) operating in the wearable device (4) compares the location of the work machine (2) obtained from the work machine (2) via the communication network (61) with its own location, and when it approaches a certain distance, uses the output HMI (44) to warn the worker (3) of approaching the work machine (2) by sound, vibration, text, or picture display, thereby prompting the worker (3) to pay attention or making the worker (3) aware of the presence of the work machine (2), thereby preventing accidents or mitigating damage. The operating status of this safety construction support function (4a) (the execution status of the warning or worker identification information of the person being warned) is sent to the operation count measurement function (7a) of the server (7) via the communication network (61). Additionally, the safety construction support function (4a) may be composed of multiple safety construction support functions.

[0027] The operation count measurement function (7a) operating on the server (7) receives the operation status of the safety construction support function sent from the safety construction support function (2a, 4a) and counts the number of times the safety construction support function is operated for each worker. The information on the operation status of the safety construction support function includes which function was operated for which worker (3). Within a certain measurement span, the number of times each worker (3) in the construction site operated which safety construction support function is counted and the information is transmitted to the safety awareness level estimation function (7b). Additionally, the measurement span can be freely set by the construction manager, such as several hours, one day, or one week. It is recommended to set the measurement span short if the safety awareness level of the workers (3) at the site is assumed to be low, and to set the measurement span long if it is assumed to be high. When the current measurement span ends and moves to the next measurement span, all counts are reset to zero.

[0028] FIG. 4 is an example of information sent from the operation count measurement function (7a) to the safety awareness level estimation function (7b). In this example, it shows a case where the number of workers (3) working at the site is 4 (workers A to D) and the number of safety construction support functions operating in the construction support system at the site is 4 (functions A to D). Information regarding which worker (3) has operated which safety construction support function and how many times in the current measurement span is transmitted to the safety awareness level estimation function (7b).

[0029] In FIG. 4, Function A is one of the safety construction support functions (2a) implemented in the controller (21) of the work machine (2), and is a function that automatically stops the operation of the work machine (2) when the worker (3) approaches the work machine (2) within a distance of 10 meters. Function B is one of the safety construction support functions (2a) implemented in the controller (21) of the work machine (2), and is a function that automatically reduces the operation of the work machine (2) to 50% of the maximum speed when the worker (3) approaches the work machine (2) within a distance of 10 meters or more and 15 meters. X in the “X% reduction of maximum speed” mentioned here is a control parameter of the safety construction support function (2a) and can be changed according to the safety awareness level of the worker (3).

[0030] Function C is one of the safety construction support functions (4a) implemented in the controller (41) of the wearable device (4), and is a function in which the wearable device (4) automatically warns the wearer with vibration and sound (high volume) when the worker (3) (wearer) wearing the wearable device (4) approaches the work machine (2) within a distance of 12 meters. Function D is one of the safety construction support functions (4a) implemented in the controller (41) of the wearable device (4), and is a function in which the wearable device (4) automatically warns the wearer with vibration and sound (low volume) when the wearer of the wearable device (4) approaches the work machine (2) within a distance of 12 meters or more and 17 meters. The volume or vibration level of the wearable device (4) is a control parameter of the safety construction support function (4a) and can be changed according to the safety awareness level of the worker (3).

[0031] The safety awareness level estimation function (7b) operating on the server (7) stores the number of operations for each worker of the safety construction support function sent from the operation count measurement function (7a), including past measurement spans, and estimates the safety awareness level of the worker (3) from the number of operations of each function including past ones. FIG. 5 is an example of operation count information of a certain worker (3) stored in the safety awareness level estimation function (7b). Here, it shows the case where there are 4 safety construction support functions (functions A to D) operating in the construction support system at the site, and the number of times the target worker operated each safety construction support function in each measurement span is stored and arranged in the chronological order of the measurement spans. The safety awareness level estimation function (7b) estimates the safety awareness level of the worker (3) using this information. Although various methods can be considered for estimating the safety awareness level, the simplest method is to use the sum of the number of operations of each function, and can be calculated, for example, using the following formula.

[0032] [Mathematical Formula 1]

[0033]

[0034] In the above equation, L i is the estimated safety awareness level of the i-th worker (3), C i s, f is the number of times the f-th safety construction support function is operated in the s-th measurement span of the i-th worker (3), N f represents the total number of safety construction support functions, and a and b represent the numbers of the measurement spans, respectively. The safety awareness level is the reciprocal of the sum of the total number of operations by the worker (3) in the measurement spans from the a-th to the b-th plus 1. Using this formula, the safety awareness level of a worker (3) with zero operations is 1, and as the number of operations increases, the safety awareness level approaches zero. The safety awareness level is a numerical value that quantifies the degree of consideration for safety of the worker (3). For example, if a value from 0 to 1 is taken, and 1 is defined as the highest state of safety awareness and 0 as the lowest state, then the worker (3) has a safety awareness level low enough to activate the safety construction support function according to the above formula. In other words, a worker (3) who carelessly approaches the work machine (2) and activates the safety construction support function is presumed to have a low safety awareness level.

[0035] There are various functions for safety construction support functions, and the operating conditions for each differ. It can be assumed that safety construction support functions operating in higher-risk conditions (e.g., approaching within 1 meter of the work machine) have a different weighting for the safety awareness level per operation compared to safety construction support functions operating in lower-risk conditions (e.g., approaching within 1 meter or more and less than 5 meters of the work machine). For this reason, a method for estimating the safety awareness level can be considered, for example, a calculation method using the following formula.

[0036] [Mathematical Formula 2]

[0037]

[0038] In the above equation, ω f represents the weight of the f-th safety construction support function. For each safety construction support function, a weight (ω) is given according to the high risk (urgency) of its operating conditions. f ) is set, and the total number of operations considering the weights is used to estimate the safety awareness level. In the case of functions A to D described in Fig. 4, since the urgency increases in the order of function A > C > B > D, the weight (ω f ) is also set larger in the order of functions A > C > B > D. Using this formula, the weights (ω f Compared to cases where ) is not used, it becomes possible to estimate the level of safety awareness with higher precision.

[0039] 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) through the communication network (61) in a form associated with the worker (3)'s identification information. By doing so, the safety construction support function (2a, 4a) can execute actions that optimize safety and productivity by appropriately selecting the action according to the target's safety awareness level. For example, in the case of a safety construction support function that detects when a worker (3) approaches a work machine (2) and slows down the action, if the target worker (3) has a high safety awareness level, the degree of slowdown is mitigated within a range that ensures the safety of the worker (3) with this high safety awareness level, so as not to damage productivity. On the other hand, if the target worker (3) has a low safety awareness level, the degree of slowdown is strengthened within a range that ensures the safety of the worker (3) with this low safety awareness level, so as to increase safety even at the expense of some productivity. In this way, safety and productivity are optimized by maintaining the necessary safety and then improving productivity as much as possible, depending on the safety awareness level of the target worker (3).

[0040] The distribution function (7c) operating on the server (7) receives the safety awareness level of each worker (3) estimated by the safety awareness level estimation function (7b) and distributes the safety awareness level of the workers (3) at the construction site to the receiving device (8) in the form of a table or report. Through this function, the construction manager or safety supervisor can regularly receive the safety awareness level of the workers (3) at the site through the receiving device (8) and easily identify workers (3) with a low safety awareness level. For workers (3) with a low safety awareness level, measures are taken to improve their safety awareness level, such as by conducting safety training again, thereby raising the overall safety awareness level of the site. This further optimizes the safety and productivity of the construction site, making it possible to carry out construction that is both safe and highly productive.

[0041] The delivery function (7c) delivers the safety awareness level estimation results to the receiving device (8) in spans such as after the end of work on one day or one week. The delivery may be done in the form of, for example, a fax or email, or by uploading to a webpage. The delivery content may include the safety awareness level estimation values ​​of each worker (3), and it is better if past estimation values ​​are also included in addition to the latest estimation values ​​so that the changes in the safety awareness level are presented in an easy-to-understand manner. FIGS. 6 and FIGS. 7 are examples of the content delivered by the delivery function (7c). FIGS. 6 is an example of presenting the results of the latest week and the past three weeks of safety awareness level estimation values ​​estimated in spans of one week in the form of a table, and FIGS. 7 is an example of presenting the same content as FIGS. 6 in the form of a report with added line graphs. This information is regularly sent to construction managers or safety supervisors, etc., by means of the dispatch function (7c), and helps to plan appropriate work distribution, placement, and retraining of workers (3) at the site according to the safety awareness level of each worker (3), or helps to plan changes to safety measures used at the site according to the overall safety awareness level of the site. In addition, in the example shown in FIG. 7, in addition to the safety awareness levels of each worker A to D, the average of the safety awareness levels of workers A to D is also output. This makes it possible to determine the overall safety awareness level of multiple workers (3) working at the construction site. Furthermore, the overall safety awareness level is not limited to the average of the safety awareness levels of each worker (3), but may also be a load average that incorporates, for example, the attributes of the worker (3) (whether they are veterans, what kind of training they have received, etc.).

[0042] In this embodiment, a construction support system (1) having safety construction support functions (2a, 4a) that contribute to reducing risks to workers and work machines at a construction site is provided with a server (7) that collects operation information of a work machine (2) deployed at the construction site and a communication network (61) that connects the work machine (2) and the server (7). The server (7) measures the number of times the safety construction support functions (2a, 4a) operate and calculates and outputs the safety awareness level of a worker (3) working at the construction site based on the number of times the functions operate.

[0043] According to the embodiment configured as described above, it is possible to determine the extent to which a worker (3) at a construction site is performing work with consideration for safety (safety awareness level). By changing the control parameters of the safety construction support functions (2a, 4a) according to the safety awareness level of the worker (3) to whom the safety construction support functions (2a, 4a) are operated, it is possible to prevent excessive safety construction support and improve work productivity. Furthermore, by presenting the safety awareness level of the worker (3) to the supervisor at the construction site, it is possible to instill safety awareness in workers (3) with a low safety awareness level (relatively lacking consideration for safety) through safety education, etc. As a result, it becomes possible to optimize safety and productivity in work at the construction site.

[0044] Additionally, the server (7) measures the number of times the safety construction support function (2a, 4a) is operated, which is installed in the controller (21, 41) mounted on the work machine (2) or wearable device (4). By doing so, it becomes possible to individually notify a high-risk worker (3) of a warning.

[0045] In addition, the server (7) calculates the safety awareness level for each of the multiple workers (3) when multiple workers (3) are present at the construction site. By doing so, it becomes possible to optimize the behavior of the safety construction support functions (2a, 4a) according to the safety awareness level of each worker.

[0046] In addition, the server (7) calculates the safety awareness level for all of the multiple workers (3) when there are multiple workers (3) at the construction site. By doing so, it becomes possible to determine the overall safety awareness level of the multiple workers (3) working at the construction site.

[0047] Additionally, the server (7) calculates the safety awareness level according to the number of times the safety construction support functions (2a, 4a) are operated, based on a relationship formula in which the safety awareness level decreases as the number of times the safety construction support functions (2a, 4a) are operated increases. By doing so, it becomes possible to objectively estimate the safety awareness level of the worker (3) working at the construction site.

[0048] Additionally, the construction support system (1) has multiple safety construction support functions (2a, 4a) with different levels of urgency, and the server (7) measures the number of times each of the multiple safety construction support functions (2a, 4a) is operated, and a weight (ω) according to the number of times each of the multiple safety construction support functions (2a, 4a) is operated and the level of each of the multiple safety construction support functions (2a, 4a) is operated. f The sum of the products of ) is calculated as the total number of operations of multiple safety construction support functions (2a, 4a). As a result, as the urgency of the safety construction support function increases, the degree of decrease in the safety awareness level with increasing operation count increases, so it is possible to improve the accuracy of the safety awareness level estimation.

[0049] Additionally, the server (7) has the function of monitoring safety awareness levels. By doing so, the construction manager or safety supervisor can regularly monitor the safety awareness levels of the workers (3) at the site and easily identify workers (3) with low safety awareness levels. For workers (3) with low safety awareness levels, measures are taken to improve their safety awareness levels, such as by conducting safety training again, thereby raising the overall safety awareness level of the site. This optimizes the safety and productivity of the construction site, making it possible to carry out construction that is both safe and highly productive.

[0050] Additionally, the controller (21, 41) receives the safety awareness level output from the server (7) through the communication network (61) and changes the control parameters of the safety construction support function (2a, 4a) according to the safety awareness level. As a result, since the work restrictions by the safety construction support function (2a, 4a) are relaxed according to the safety awareness level of the worker (3) working at the construction site, it becomes possible to automatically optimize safety and productivity in the work at the construction site.

[0051] Although embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments and includes various modifications. For example, the above-described embodiments are described in detail to facilitate understanding of the present invention and are not necessarily limited to having all the described configurations. Explanation of the symbols

[0052] 1: Construction support system 2: Work machine 2a: Safety construction support function 21: Controller 22: Sensor 23: Communication device 24: Work Log 25: Output HMI 3: Worker 4: Wearable device 4a: Safety construction support function 41: Controller 42: Sensor 43: Input HMI 44: Output HMI 45: Communication device 5: Environment Installation Sensor 51: Controller 52: Sensor 53: Communication device 6: Communication facilities 61: Communication network 7: Server 8: Receiving device

Claims

Claim 1 A construction support system having a safety construction support function that contributes to reducing risks to workers and work machines at a construction site, comprising: a server; a controller mounted on a work machine deployed at the construction site; a controller mounted on a wearable device worn by a worker working at the construction site; a communication network connecting the work machine, the wearable device, and the server; and a receiving device capable of receiving information transmitted from the server. The server measures the number of times the safety construction support function mounted on the controller of the work machine and the safety construction support function mounted on the controller of the wearable device operate, calculates the safety awareness level of the worker based on the number of times the operation occurs, and transmits the safety awareness level to the receiving device. Claim 2 delete Claim 3 A construction support system according to claim 1, wherein the server calculates the safety awareness level for each of the plurality of workers when there are a plurality of workers at the construction site. Claim 4 A construction support system according to claim 1, wherein the server calculates the safety awareness level for all of the plurality of workers when there are a plurality of workers at the construction site. Claim 5 A construction support system according to claim 1, characterized in that the safety awareness level is a numerical value that quantifies the degree of consideration for the safety of the worker in the range of 0 to 1. Claim 6 A construction support system according to claim 5, wherein the server calculates the safety awareness level based on a relationship formula set such that the safety awareness level decreases as the number of operations of the safety construction support function implemented in the controller of the work machine and the safety construction support function implemented in the controller of the wearable device increases. Claim 7 A construction support system according to claim 5, wherein a weight is set according to each level of urgency for the safety construction support function implemented in the controller of the work machine and the safety construction support function implemented in the controller of the wearable device, and the server calculates the sum of the products of the number of operations of each safety construction support function implemented in the controller of the work machine and the safety construction support function implemented in the controller of the wearable device and the weight according to each level of urgency of the safety construction support function implemented in the controller of the work machine and the safety construction support function implemented in the controller of the wearable device as the number of operations of the safety construction support function implemented in the controller of the work machine and the safety construction support function implemented in the controller of the wearable device. Claim 8 A construction support system according to claim 1, wherein the controller receives the safety awareness level output from the server through the communication network and changes the control parameters of the safety construction support function according to the safety awareness level.

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