JP2019175131A - Construction management system - Google Patents

Abstract

To provide a construction management system which can easily and accurately count the number of times of loading in a construction site.SOLUTION: A construction management system includes: a data input part which acquires positional information of a transport machine, positional information of a working machine and acceleration information with a server related to a working state of a construction site via a communication line; an approach determination part which determines an approach state between the transport machine and the working machine from the positional information; a loading operation determination part which determines presence/absence of a loading operation by the working machine from the acceleration information of the working machine; and a loading work determination part which determines a state of a loading work on the basis of the determination result of the contact determination part and the loading operation determination part; in which the loading work determination part determines that the loading work to the transport machine is performed by the working machine when contact of the transport machine and the working machine continues for a predetermined time or longer and the loading operation by the working machine is a predetermined number or larger.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a transporter in a civil engineering construction site or the like and a construction management system related to management of a work machine that performs loading work on the transporter.

  The manager (supervisor) of the construction site grasps the work status of the construction site at a civil engineering construction site where the work is carried out by a transporter such as a dump truck and a work machine such as an excavator that performs loading work on the transporter. It is important to do. Then, the manager is required to change the work plan, improve the work efficiency, etc. according to the work situation.

  As a conventional management of construction sites, there is a method of confirming how many times loading work by a work machine is performed on a transporter and grasping the work status of the construction site. As a method for counting the loading operation, for example, a weight sensor is provided in the transporter and the loading machine, and the measurement result by the weight sensor is processed to detect the actual loading operation, and the final loading operation is performed. There is a method of accurately determining the completion of and counting. However, since it is necessary to install a dedicated sensor or a highly accurate sensor and the calculation processing is complicated, there is a possibility that the construction management itself cannot be easily performed.

  On the other hand, for example, in the construction management system described in Patent Document 1, the loading machine receives a radio wave transmitted from the transporter, and the time during which the intensity of the radio wave is equal to or greater than a threshold is set for a set period. If exceeded, it is determined that the transporter has approached the loading machine in order to perform the loading operation. When it is determined that the transporter has approached the loading machine, it is assumed that the loading operation has been performed, and the number of times of loading is counted to grasp the work status of the construction site. Is managing. In other words, construction management by a relatively simple method is realized by grasping the state of the transporter and the loading machine caused by the loading work and determining whether the loading work is being performed. Will be.

Japanese Patent No. 597676

  However, if it is determined whether or not the loading operation can be performed based only on the approach between the transporter and the loading machine, the number of times of loading is counted even when the transporter is approaching the loading machine and stopped. As a result, the number of loadings may be erroneously counted. That is, there is a problem in that the counting of the number of times of loading is inaccurate and the work situation at the construction site is erroneously grasped.

  This invention is made | formed in view of such a subject, The place made into the objective is providing the construction management system which can count the frequency | count of loading in a construction site easily and correctly.

  In order to achieve the above-described object, the construction management system of the present invention obtains information on a transporter and a work machine at a construction site via a communication line, and has a server for managing the work status of the construction site. The server includes a data input unit that acquires position information of the transporter, position information and acceleration information of the work machine, position information of the transporter and position information of the work machine, and the transporter and the work machine. An approach determination unit that determines an approach state with a work machine, a loading operation determination unit that determines whether or not there is a loading operation by the work machine from acceleration information of the work machine, the approach determination unit, and the loading operation determination A loading operation determination unit that determines the state of loading operation on the transporter by the work machine based on the determination result of the transporting unit, and the loading operation determination unit includes the transporter and When the approach of the work machine continues for a predetermined time or more and the loading operation by the work machine is a predetermined number of times or more, it is determined that the loading work by the work machine to the transporter has been performed. It is characterized by that.

  According to the construction management system of the present invention, the number of loadings at the construction site can be easily and accurately counted.

It is the schematic which shows the whole structure of the construction management system which concerns on Example 1 of this invention. It is a block diagram which shows the server of the construction management system which concerns on Example 1 of this invention, and the apparatus connected to the said server. It is the schematic for demonstrating the determination method of the loading operation | movement in Example 1 of this invention. It is a graph which shows the data used in the determination method of the loading operation | work in Example 1 of this invention. It is a functional block diagram of the construction management system which concerns on Example 1 of this invention. It is an example of a display of the loading work record in the construction management system which concerns on Example 1 of this invention. It is a determination flow of the loading operation | work by the construction management system which concerns on Example 1 of this invention. It is a specific processing flow of step S102 in FIG. It is a specific processing flow of step S108 in FIG. It is the schematic for demonstrating the determination method of the loading operation | movement in Example 2 of this invention. It is a graph which shows the data used in the determination method of the loading operation in Example 2 of this invention. It is a specific processing flow of step S102 in FIG. 6 in Embodiment 2 of the present invention. It is a specific processing flow of step S108 in FIG. 6 in Example 2 of the present invention. It is the schematic which shows the whole structure of the construction management system which concerns on Example 3 of this invention. It is a functional block diagram of the construction management system which concerns on Example 3 of this invention. It is a display example of the loading work record in the construction management system which concerns on Example 3 of this invention. It is the determination flow of the loading operation | work by the construction management system which concerns on Example 3 of this invention.

  Embodiments of a construction management system according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited to the content demonstrated below, In the range which does not change the summary, it can change arbitrarily and can implement. Moreover, all the various numerical values used in each embodiment show an example, and can be variously changed as necessary.

<Example 1>
Below, the structure of the construction management system which concerns on a present Example is demonstrated, referring FIG.1 and FIG.2. Here, FIG. 1 is a schematic diagram illustrating the overall configuration of the construction management system according to the present embodiment. Moreover, FIG. 2 is a block diagram which shows the server of the construction management system which concerns on a present Example, and the apparatus connected to the said server.

  As shown in FIG. 1, the construction management system according to the present embodiment includes position information and acceleration information of a heavy machine 1 such as a hydraulic excavator at a civil engineering construction site (hereinafter also simply referred to as a construction site), and a transporter such as a dump truck. 2 position information can be transmitted to the server 4 via the predetermined communication means 3. Specifically, the mobile terminal 5a installed in the heavy machine 1 and the mobile terminal 5b installed in the transporter 2 receive radio waves from a plurality of positioning satellites 6 constituting a global navigation satellite system (GNSS). Receive. Thereafter, each of the mobile terminals 5a and 5b that have received the radio wave transmits, via the communication base station 7, position information obtained by calculation using the radio wave to the communication company 8 that integrates the mobile communication network. Further, the communication company 8 transmits the position information to the server 4 via the communication line 9 such as the Internet. Similarly, the acceleration information of the heavy equipment 1 is obtained by an acceleration sensor (not shown) mounted on the portable terminal 5a and transmitted to the server 4 via the communication base station 7, the communication company 8, and the communication line 9. The

  Here, the heavy machine 1 is a work machine capable of performing a loading operation on the transporter 2, and is a machine having a plurality of work functions in addition to the loading operation. Moreover, the smart phone which the driver | operator of the heavy machine 1 and the transporter 2 possesses can be utilized as the portable terminals 5a and 5b. Furthermore, as the mobile terminals 5a and 5b, in addition to communication devices that are assumed to be portable, such as smartphones, installed communication devices that can be used by being connected to a cigarette power source may be used.

  As shown in FIG. 1, in the construction management system according to the present embodiment, a work terminal 10 for confirmation by an administrator of the civil engineering work site is provided outside the civil engineering work site. Since the work terminal 10 includes a communication device (not shown), the work terminal 10 can bidirectionally communicate with the server 4 via the communication line 9. For this reason, the administrator who operates the work terminal 10 can access the server 4 via the communication line 9 to display the work status of the civil engineering work site on the work terminal 10 and confirm the contents. That is, the work terminal 10 functions as a display unit of the construction management system. Here, the work terminal 10 is a general computer that can perform various calculations and operations as well as simply displaying the work state of the civil engineering work site.

  In addition, the work terminal 10 may be installed in the building installed in the civil engineering construction site, or may be a portable terminal owned by an administrator. In particular, since the portable terminal owned by the manager also serves as the work terminal 10, it is possible to grasp the work status of the civil engineering work site selected by the manager even when the manager is working in another location. become. In that case, the mobile terminal owned by the administrator may transmit and receive information via the server 4, the communication line 9, the communication company 8, the communication base station 7, and the mobile communication network.

  As illustrated in FIG. 2, the server 4 includes a calculation unit 12, a first storage unit 13, a second storage unit 14, a network interface 15, and an external interface 16.

  The computing unit 12 includes, for example, a central processing unit (CPU) that performs various types of computation processing. That is, the arithmetic unit 12 functions as a control device that controls the server 4 in an integrated manner. For example, the arithmetic unit 12 performs arithmetic processing related to various data input from the network interface 15 in accordance with a program stored in the first storage unit 13. Further, the arithmetic unit 12 controls the network interface 15 and also performs communication control of the server 4 with respect to the communication line 9.

  The first storage unit 13 is a general main memory (main storage device) that temporarily stores programs and various data. Specifically, the first storage unit 13 temporarily stores a program executed by the calculation unit 12, and further temporarily stores various data input to the server 4 and calculation results by the calculation unit 12. For example, the first storage unit 13 is composed of a dynamic random access memory (DRAM). In addition, the calculation result by the calculating part 12 is a result regarding determination of the loading operation | movement mentioned later and loading operation | work, for example.

  On the other hand, the second storage unit 14 is a general storage (auxiliary storage device) that permanently stores various data. Specifically, the 2nd memory | storage part 14 stores the calculation result by the calculating part 12 permanently. For example, the second storage unit 14 includes a hard disk drive (HDD) or a solid state drive (SSD).

  The external interface 16 is connected to a display 17 as a display device and a keyboard 18 as an input device. The administrator of the server 4 can use and maintain the server 4 by operating the keyboard 18. Further, the manager can display the usage status, the maintenance inspection status, and the like on the display 17 and can use the displayed output information. The external interface 16 may be connected to another input device such as a mouse, and may further be connected to an output device such as a printer.

  With such a configuration, in the construction management system according to the present embodiment, the calculation unit 12 of the server 4 executes a display program on the work terminal 10 at the work site, and works on the calculation result of the program via the communication line 9. It is displayed on the terminal 10. Here, the display method of the calculation result on the work terminal 10 may be a display by the Web method, or may be by execution of a program provided in the work terminal 10.

  Next, the determination of the loading operation and the loading operation and the display of the determination result in the construction management system according to the present embodiment will be described with reference to FIGS. Here, FIG. 3 is a schematic diagram for explaining a loading operation determination method in the present embodiment. Moreover, FIG. 4 is a graph which shows the data used in the determination method of the loading operation | work in a present Example. Furthermore, FIG. 5 is a functional block diagram of the construction management system according to the present embodiment. FIG. 6 is a display example of the loading work record in the construction management system according to the present embodiment.

  The loading operation refers to an operation related to one loading on the transporter 2 in the heavy equipment 1, and the loading operation is completed by repeating the loading operation on the transporter 2 by the heavy equipment 1. Refers to the work to be performed.

  As can be seen from FIG. 3, the transporter 2 is located in the vicinity of the heavy machine 1, and excavation of earth and sand is performed by the work front 1 a of the heavy machine 1 at the excavation position C, and then the upper swing body 1 b of the heavy machine 1 is swung, The work front 1a performs the earth and sand loading operation once at the loading position D. In view of such work, in the construction management system according to the present embodiment, the transporter 2 approaches the heavy machine 1 within a predetermined distance range, and the predetermined turning operation related to the loading operation by the heavy machine 1. When it is detected that (related operation) has been performed, it is determined that one loading operation by the heavy equipment 1 has been performed.

  Specifically, the position information of the portable terminal 5a arranged in the heavy machine 1 and the portable terminal 5b arranged in the transporter 2 is transmitted to the server 4 via the communication means 3, and the portable terminal 5a and the portable terminal 5a are carried from each position information. The distance r of the terminal 5b is calculated. If the distance r is within the preset approach determination distance range (-R to + R), it is determined that the transporter 2 has approached the range in which the heavy equipment 1 is loaded. Is done.

  Since the distance r is calculated based on the heavy machine 1, for example, it is a positive value when it is located on the south side with respect to the heavy machine 1, and a negative value when it is located on the north side with respect to the heavy machine 1. Value. For this reason, in the actual determination, if the absolute value of the distance r is equal to or less than the approach determination distance (+ R), the transporter 2 approaches the range where the heavy equipment 1 is loaded. It is determined as a thing.

  In addition, acceleration information is transmitted from the mobile terminal 5 a arranged in the heavy machine 1 to the server 4 via the communication means 3, and the presence or absence of a turning motion of the heavy machine 1 is determined from the acceleration information. Here, when the upper turning body 1b turns from the excavation position C to the loading position D (hereinafter referred to as the first turning), the turning speed (angular velocity) ω becomes equal to or higher than a predetermined value (+ ω0), and the upper turning body 1b moves to the loading position. When turning from D to the excavation position C (hereinafter referred to as second turning), the turning speed (angular speed) ω becomes a predetermined value (−ω0) or less. On the other hand, in one loading operation by the heavy machine 1, the first turn and the second turn are sequentially performed. Therefore, when the turning speed ω becomes equal to or higher than the predetermined value (+ ω0) on the plus side and then equal to or lower than the predetermined value (−ω0) on the negative side, the heavy machine 1 performs the first turn and the second turn. It is determined that

  Depending on the positional relationship between the heavy machine 1 and the transporter 2, the turning speed related to the first turn may change to the minus side, and the turning speed related to the second turn may change to the plus side. In this case, when the turning speed ω becomes equal to or higher than the predetermined value (+ ω0) on the plus side after the turning speed ω becomes equal to or lower than the predetermined value (−ω0) on the negative side, the heavy machine 1 performs the first turning and the second turning. It is determined that the vehicle has made a turn. Further, since the predetermined value (± ω0) varies depending on the type and specification of the heavy machine 1, it is appropriately determined according to the specification and specification of the heavy machine 1.

  Next, when the above-described operation by the heavy machine 1 is repeated, a plurality of loading operations are performed, and when the earth and sand are sufficiently loaded on the loading platform of the transporter 2, the loading work by the heavy machine 1 on the transporter 2 is performed. It will end once. In view of such work, in the construction management system according to the present embodiment, the transporter 2 continuously approaches the heavy machine 1 within a predetermined distance range, and the product related to the loading work by the heavy machine 1. When it is detected that the loading operation has been performed a predetermined number of times or more, it is determined that one loading operation by the heavy equipment 1 has been performed.

  Specifically, since the time information is obtained together with the position information obtained when the presence / absence of the loading operation described above is determined, the distance r between the heavy machine 1 and the transporter 2 is within a predetermined approach determination distance range (− It is determined whether or not it continues to belong to (R to + R). That is, as shown in FIG. 4A, the duration (time ts to time te) in which the distance r between the heavy machine 1 and the transporter 2 is equal to or less than the approach determination distance + R is equal to or longer than a predetermined continuation determination time Δt. In this case, it is determined that a predetermined distance range is maintained for the heavy machinery 1 and the transporter 2 to perform the loading operation. For example, Δt can be set to 10 seconds, but can be set as appropriate according to the specifications of the heavy machinery 1 and the transporter 2.

  If the loading operation is counted more than a predetermined number of times (time ts to time te) in a state in which the distance r between the heavy machine 1 and the transporter 2 is equal to or less than the approach determination distance + R, It is determined that the loading operation has been performed. In FIG. 4B, the fluctuation of the turning speed ω indicating the loading operation is detected n times (n is an arbitrary number), but the number of detection times is equal to or more than the predetermined number A times. Therefore, it is determined that the loading operation has been performed. For example, the predetermined number A can be set to 5 times, but can be appropriately set according to the specifications of the heavy machinery 1 and the transporter 2.

  In FIG. 4, there is a fluctuation in the turning speed ω that does not exceed a predetermined value (+ ω0) between the fluctuations in the turning speed ω corresponding to the first loading operation and the second loading operation. Yes. This indicates, for example, a change in acceleration caused by the driver rotating the body in the state where the driver of the heavy machine 1 is carrying the portable terminal 5a. In the construction management system according to the present embodiment, such acceleration fluctuations are not treated as acceleration fluctuations associated with the turning of the heavy equipment 1, so that the turning of the heavy equipment 1 can be accurately detected.

  And, in order to realize the above-described loading operation and loading work determination, and to enable the construction site manager to easily grasp the construction status of the construction site, the construction management system according to the present embodiment is The various functional configurations shown in FIG. 5 are provided. Specifically, the construction management system according to the present embodiment includes a data input unit 21, an approach determination unit 22, a loading operation determination unit 23, a loading operation determination unit 24, a loading operation recording unit 25, and a loading operation record. A display unit 26 is provided.

  The data input unit 21 acquires position information, acceleration information, and time information corresponding to the position information of the heavy equipment 1 via the communication line 9. The data input unit 21 also acquires position information of the transporter 2 and time information corresponding thereto. That is, the data input unit 21 corresponds to the network interface 15 of the server 4 and the calculation unit 12 that controls the network interface 15, and the function of the data input unit 21 is realized by the control of the network interface 15 by the calculation unit 12. Become. Each time information may be added to each position information and each acceleration information without being acquired as independent information.

  The approach determination unit 22 determines the approach state between the heavy machine 1 and the transporter 2 from the position information of the heavy machine 1 and the position information of the transporter 2 input to the data input unit 21. That is, the approach determination unit 22 corresponds to the calculation unit 12 of the server 4, and the heavy machine 1 and the transporter 2 by the approach determination unit 22 are executed by the execution of the program stored in the first storage unit 13 by the calculation unit 12. A function related to the approach determination is realized.

  The loading operation determination unit 23 determines the presence / absence of the loading operation of the heavy machine 1 from the presence / absence of the turning operation of the heavy machine 1 from the acceleration information of the heavy machine 1. That is, the loading operation determination unit 23 determines the presence / absence of the turning operation and the loading operation of the heavy machine 1 as related operations related to the loading operation of the heavy machine 1. The loading operation determination unit 23 corresponds to the calculation unit 12 of the server 4 and is executed by the heavy machine 1 by the loading operation determination unit 23 by executing the program stored in the first storage unit 13 by the calculation unit 12. A function related to the presence / absence determination of the related operation is realized.

  The loading work determination unit 24 determines the work state of the heavy equipment 1 based on the determination results of the approach determination unit 22 and the loading operation determination unit 23. Specifically, the loading operation determination unit 24 performs the loading operation by the heavy machinery 1 when the approach of the heavy machinery 1 and the transporter 2 continues for a predetermined time or more and the loading operation by the heavy machinery 1 is a predetermined number of times or more. It is determined that it has been executed. That is, the loading operation determination unit 24 corresponds to the calculation unit 12 of the server 4, and the heavy machine 1 of the loading machine determination unit 24 executes the program stored in the first storage unit 13 by the calculation unit 12. Functions related to loading work determination are realized.

  The loading operation recording unit 25 updates the loading operation record at the loading operation site when the loading operation determination unit 24 determines that the loading operation by the heavy machinery 1 is performed. That is, the loading work recording unit 25 counts the loading work by the heavy machinery 1 and records the number of loading work in a predetermined period (for example, morning, 1 day, 1 week, etc.). Specifically, the loading work recording unit 25 loads the loading start time (time ts) when the distance r between the heavy machine 1 and the transporter 2 in FIG. 4A is within the approach determination distance range (−R to + R). The loading end time (time te) at which the distance r between the heavy machine 1 and the transporter 2 is outside the approach determination distance range is recorded. In addition, the loading work recording unit 25 counts and updates the total number of loading works in one day, for example, and calculates and updates the total work soil amount. The loading operation recording unit 25 corresponds to the calculation unit 12, the first storage unit 13, and the second storage unit 14 of the server 4, and is based on the calculation unit 12 of the program stored in the first storage unit 13. The determination result obtained by the execution is stored in the first storage unit 13 and the second storage unit 14, thereby realizing a recording function by the loading work recording unit 25.

Here, in the construction management system according to the present embodiment, the work progress can be managed by grasping the approximate amount of soil. Therefore, the total amount of soil described above is calculated as follows, for example. be able to. First, it is assumed that the amount of soil in one loading operation is G0 (m ³ ) based on the maximum load weight of one transporter 2 and the standard specific gravity of soil. Then, the total work soil amount G (m ³ ) is calculated by the product of the total number of loading operations and the assumed soil amount G0. In this embodiment, it is assumed that the maximum load weight is 10 tons, the specific gravity of the soil is 1.8, and the soil volume G0 is 5.6 m ^3. However, each numerical value is appropriately changed according to the situation of the construction site. Further, the unit of the soil volume G0 may be appropriately selected.

The loading work record display unit 26 displays the data updated by the loading work recording unit 25 on the work terminal 10 at the construction site. That is, the loading work record display unit 26 corresponds to the work terminal 10, and the function by the loading work record display unit 26 is realized by displaying the updated loading work record on the work terminal 10. The In the present embodiment, as shown in FIG. 6, the number of times of loading work, the start time of loading work, the end time of loading work, and the total number of works are associated with the functions in the loading work recording unit 25 described above. , And the total amount of work soil (m ³ ) will be displayed.

  Here, the display of the loading work record on the work terminal 10 may be automatically performed in the Web format by executing the program by the calculation unit 12 of the server 4. In addition, the worker of the work terminal 10 (the manager of the construction site) executes the program of the work terminal 10 and acquires the latest loading work record via the communication means 3, thereby loading the work terminal 10. Inclusive work records may be displayed.

  Next, construction management processing in the construction management system according to the present embodiment will be described with reference to FIGS. 7 to 9. FIG. 7 is a determination flow of loading work by the construction management system according to the present embodiment. 8 is a more specific processing flow of step S102 in FIG. 6, and FIG. 9 is a more specific processing flow of step S108 in FIG.

  First, when there is an instruction to start loading work determination, the loading work number N, the loading work flag F, the total work soil amount G, and the loading operation count m are cleared, and each value is set to an initial value (N = 0). F = 0, G = 0, m = 0) (FIG. 7: Step S101). Here, the disclosure instruction means that the manager of the construction site accesses the server 4 from the work terminal 10 via the communication means 3 every morning, for example, and executes a program related to construction management by the calculation unit 12 of the server 4. May be performed. Further, it may be automatically performed on the server 4 side at the timing when the date changes or at a predetermined time.

  Next, data input and calculation of the heavy machinery 1 and the transporter 2 are performed (FIG. 7: Step S102). Specifically, as shown in step S1020 of FIG. 8, the position information (X1, Y1, Z1), acceleration information, and time information are received from the portable terminal 5a disposed in the heavy machine 1 via the communication unit 3. 4 and the calculation unit 12 calculates the turning speed ω. In addition, position information (X2, Y2, Z2) and time information are input to the server 4 from the mobile terminal 5b disposed in the transporter 2 via the communication unit 3.

  Next, it is determined whether the transporter 2 is approaching the heavy machine 1 based on each position information input by the calculation unit 12 (FIG. 7: Step S103). Specifically, the distance r between the heavy machine 1 and the transporter 2 is calculated from each position information, and it is determined whether or not the absolute value of the distance r is smaller than the approach determination distance R. If the transporter 2 is not close to the position where the loading operation can be performed with respect to the heavy machine 1 (step S103: No), the transporter 2 receives the heavy machine 1 from the previous determination process in step S103. It is determined whether or not the vehicle is approaching (FIG. 7: Step S104). That is, in the process of step S103 in the current determination flow, it is determined that the transporter 2 is not approaching the heavy machine 1, but in the process of step S103 in the previous determination flow, the transporter 2 is Judge whether it was approaching 1 or not.

  If it is determined in step S104 that the transporter 2 is not approaching the heavy machine 1 in the previous determination process (step S104: No), the determination flow from the work terminal 10 is performed through step S130 described later. It is determined whether or not there is an instruction to end (FIG. 7: step S105). If there is no instruction to end this determination flow, the process returns to step S102 and the determination flow is repeated. For this reason, in the situation where there is no end instruction from the work terminal 10, unless the transporter 2 is located within a predetermined distance from the heavy machine 1, the processes of steps S <b> 102 to S <b> 105 are repeated.

  On the other hand, when it is determined in step S103 that the transporter 2 has approached the heavy machine 1 (step S103: Yes), it is determined whether or not the loading start time ts has been recorded (FIG. 7: step S106). Thereafter, when the loading start time ts is not recorded (step S106: No), the loading start time ts is recorded from the time information input in step S102 (FIG. 7: step S107). That is, it is considered that the loading operation is started at the timing of the position information acquired using the mobile terminals 5a and 5b, and the time at the timing is set as the loading start time ts.

  On the other hand, when the loading start time ts has already been recorded (step S106: Yes), step S107 is skipped and the process proceeds to step S108. That is, if it is determined that loading has started in the determination flow before the current determination flow, the loading start time ts is not set again. In other words, when the loading operation in the current determination flow is the second or more times, step S107 is skipped.

  Next, the loading operation of the heavy machine 1 is detected and counted (step S108). Specifically, as detection of the loading operation, the turning speed ω obtained by calculation in step S102 is outside the determination speed range (−ω0 <ω <+ ω0), and the fluctuation in the turning speed ω is a loading operation. Is determined (FIG. 9: Step S1080). In the present embodiment, as described above, when the turning speed ω becomes equal to or higher than the predetermined value (+ ω0) on the positive side and then equal to or lower than the predetermined value (−ω0) on the negative side, the heavy machine 1 It is determined that there has been a loading operation as having performed the first turn and the second turn (step S1080: Yes). If it is determined that there has been a loading operation, 1 is added to the loading operation count m (m = m + 1), the loading operation count m is updated (step S1081), and then step S109. Will proceed. On the other hand, if it is determined that there is no loading operation, the loading operation count m is not updated, and the process proceeds to step S109.

  Next, it is determined whether or not the state in which the transporter 2 is approaching the heavy machine 1 continues for a predetermined continuation determination time Δt (FIG. 7: step S109). Specifically, with reference to the loading start time ts recorded in step S107, it is determined whether the elapsed time up to the time input in step S102 of the current processing flow is Δt or more. If the state in which the transporter 2 is approaching the heavy machine 1 continues for a predetermined continuation determination time Δt or more (step S109: Yes), whether or not the loading operation count m is a predetermined number (A times) or more. Is determined. If the loading operation has been performed a predetermined number of times or more (step S110: Yes), the loading operation flag F is set to “execution”, that is, “F = 1”, assuming that the loading operation by the heavy equipment 1 has been performed. (FIG. 7: Step S111).

  On the other hand, when it is determined in step S109 that the state where the transporter 2 is approaching the heavy machine 1 has not continued for the predetermined continuation determination time Δt or more, and in step S110, the loading operation count m is A times or more. If it is determined that the loading operation is not performed, it is estimated that the loading operation is not performed (that is, the loading operation is continued), the loading operation flag F is cleared, and the value is set to an initial value (F = 0). (FIG. 7: Step S110). For example, when the loading operation detected in the current processing flow is the first to four times (that is, m = 1 to 4), the value of the loading work flag F remains unchanged at F = 0. . In addition, after F = 1 via step S111 in the previous processing flow, steps S103 to S111 are performed while the approaching state is Δt or more and the loading operation count m is A times or more. Since it repeats, the loading work flag F is held at “execution” and continues until it is determined in step S103 that the transporter 2 is separated from the heavy machinery 1.

  After the processing related to the loading work flag F is performed in step S111 or step S112, the process proceeds to step S105. If there is no instruction to end this determination flow, the process returns to step S102 and the determination flow is repeated. For this reason, for example, when the loading operation by the heavy equipment 1 is continuously performed, the processes of steps S102, S106, S107, S108, S109, S110, and S112 are repeatedly performed, and the loading operation is performed a predetermined number of times. If the operation is continued, it is assumed that the loading operation has been performed from step S110 to step S111, the loading operation flag F is set to “execution”, the process returns to step 102 via step S105, and the transporter 2 is moved from the heavy machine 1. Steps S102 to S110, S112, and S105 are repeated until the user leaves.

  Returning to the description in step S104, in step S104, when the transporter 2 is approaching the predetermined range of the heavy machine 1 in the previous determination flow (step S104: Yes), the loading end time te is recorded (step S113). ). That is, after passing through step S111 or step S112 in the previous determination flow, if it is determined in step S103 of the current determination flow that the transporter 2 is not close to the heavy equipment 1, in step S102 of the current determination flow. The input time is set as the loading end time te.

  When the loading end time te is recorded, it is determined whether or not the loading work flag F is “execution”, that is, whether or not F = 1 (FIG. 7: step S114). When the loading work flag F is not “execution” (step S114: No), the process proceeds to step S105, where this determination flow is repeated, or the determination flow ends according to an instruction from the work terminal 10.

  On the other hand, when the loading operation flag F is “execution” (step S114: Yes), the number of loading operations is counted, and 1 is added to the loading operation number N (N = N + 1). Is updated (FIG. 7: Step S115). Thereafter, the loading operation flag F and the loading operation count m are cleared, and the values are set to initial values (F = 0, m = 0) (FIG. 7: Step S116).

Next, regarding the loading work record, a disclosure time, an end time, and a total work volume (m ³ ) are calculated (FIG. 7: Step S117). Specifically, the loading work disclosure time ts recorded in step S107 is associated with the loading work count counted in step S115, and ts (N) = ts. Also, the loading end time te recorded in step S113 is associated with the number of loading operations counted in step S115, and te (N) = te. Furthermore, the amount of soil for one loading operation is set to G0 (m ³ ), and the total amount of soil for work is updated (G = G + G0).

  Next, in preparation for the next recording, the loading operation start time ts and the loading end time te are cleared in step S118.

  Next, the updated loading work record that is the calculation result in step S117 is displayed on the work terminal 10 (step S119). On the other hand, if the loading operation flag F is not “execution” in step S114, the loading operation flag F, the loading operation start time ts, and the loading end time te are cleared in step S130 to prepare for the next recording. . Thereafter, the process proceeds to step S105, where the present determination flow is repeated, or the determination flow ends in response to an instruction from the work terminal 10.

  As described above, in the construction management system according to the present embodiment, in addition to the distance between the heavy machine 1 and the transporter 2, the turning operation related to the loading operation of the heavy machine 1 is added to the determination criterion, and the loading is performed. It is determined whether or not work is being performed. For this reason, there is no misjudgment that determines that the transporter 2 is simply parked in the vicinity of the heavy machinery 1 is erroneously loading, and accurate loading management and progress management at the construction site associated therewith are eliminated. It becomes possible to do.

  In the construction management system according to the present embodiment, the loading operation is updated by the loading operation recording unit 25, and the latest information is displayed on the loading operation record display unit 26 (the work terminal 10 at the construction site). Will be displayed. For this reason, the manager of the construction site can easily grasp the progress of the work. For example, if the work is delayed, the administrator can make additional arrangements for the transporter by checking the progress information and take appropriate measures according to the progress at the construction site. Can be done early.

  In the present embodiment, the mobile terminal 5a provided with the acceleration sensor is used and the method of detecting the acceleration due to the centrifugal force during the turning of the heavy machine 1 is used. However, the mobile terminal 5a is provided with the gyro sensor and the turning speed. A method of directly detecting ω may be used.

<Example 2>
In the first embodiment described above, the turning operation of the heavy machine 1 is used for the determination of the loading operation, but the vertical operation of the work front 1a in the vertical direction may be used. That is, it is possible to extract the vertical acceleration accompanying the vertical motion from the acceleration information of the heavy machinery 1 and determine the loading motion. Such a construction management system will be described below as a second embodiment with reference to FIGS. 10 to 13. Here, FIG. 10 is a schematic diagram for explaining a loading operation determination method according to the present embodiment. Moreover, FIG. 11 is a graph which shows the data used in the determination method of the loading operation | movement in a present Example. Furthermore, FIG. 12 is a more specific processing flow of step S102 in FIG. 6, and FIG. 13 is a more specific processing flow of step S108 in FIG. In addition, about the same content as Example 1, the description is abbreviate | omitted.

  As can be seen from FIG. 10, when the heavy machinery 1 performs the loading operation on the transporter 2, not only the upper turning body 1 b turns, but also the work front 1 a moves in the vertical direction (that is, the vertical direction) The vehicle body of heavy machine 1 will shake. In view of such work, in the construction management system according to the present embodiment, the transporter 2 approaches the heavy machine 1 within a predetermined distance range, and the predetermined vertical movement related to the loading operation by the heavy machine 1. When it is detected that (related operation) has been performed, it is determined that one loading operation by the heavy equipment 1 has been performed. In addition, since it is the same as Example 1 that the transporter 2 approaches within the predetermined distance range with respect to the heavy machine 1, description about this is abbreviate | omitted and the description regarding the detection of the said up-and-down movement is given below.

  When the up-and-down operation is performed, the vehicle body of the heavy machine 1 is shaken, and the acceleration change in the up-down direction is caused by the shake. In order to detect the vertical movement from the acceleration change, in the construction management system according to the present embodiment, acceleration information is input to the server 4 via the communication means 3 from the portable terminal 5a arranged in the heavy machine 1, and the acceleration It is determined from the information whether or not the heavy machinery 1 is moving up and down.

  Here, when the upper-part turning body 1b makes the first turn from the excavation position C to the loading position D, the work front 1a rises from the excavation position C to the loading position D, and the vertical acceleration α associated with the rise is predetermined. It becomes more than the value (+ α0). On the other hand, when the upper turning body 1b makes the second turn from the loading position D to the excavation position C, the work front 1a is lowered from the loading position D to the excavation position C, and the vertical acceleration α associated with the lowering is a predetermined value. (−α0) or less.

  In the single loading operation by the heavy machine 1, the first turning and the second turning are sequentially performed, and the above-described vertical movement of the work front 1a is repeated. For this reason, when the vertical acceleration α becomes equal to or greater than a predetermined value (+ α0) on the plus side and then equal to or smaller than a predetermined value (−α0) on the minus side, the work front 1a of the heavy machine 1 is raised and lowered. It is determined that it was broken.

  The excavation position C may be higher than the loading position D depending on the situation of the construction site. In such a case, when the vertical acceleration α becomes equal to or greater than the predetermined value (+ α0) on the plus side after the vertical value α becomes equal to or less than the predetermined value (−α0) on the negative side, it is related to the loading operation by the heavy machine 1. It is determined that there has been vertical movement. Further, since the predetermined value (± α0) varies depending on the type and specification of the heavy machine 1, it is appropriately determined according to the specification and specification of the heavy machine 1.

  In the present embodiment, as in the first embodiment, the transporter 2 continues to approach the heavy machine 1 within a predetermined distance range, and the loading operation (up / down movement) related to the loading work by the heavy machine 1. It is determined that one loading operation by the heavy equipment 1 has been performed when it is detected that the operation determined from the above has been performed a predetermined number of times or more. In addition, although it shows the data relevant to Fig.11 (a) about the conveyance machine 2 approaching within the predetermined distance range with respect to the heavy machinery 1, since it becomes the description same as Example 1, the description Is omitted.

  When it is determined that there is a predetermined number or more of loading operations in the duration (time ts to time te) in which the distance r between the heavy machine 1 and the transporter 2 is equal to or less than the approach determination distance + R, It is determined that the loading operation has been performed. In FIG. 11 (b), the fluctuation of the vertical acceleration α indicating the loading operation is detected n times, and the number of times is equal to or more than the predetermined number A, so that the loading operation was performed. It will be determined as. The predetermined number A can be set in the same manner as in the first embodiment.

  In FIG. 11B, the fluctuation of the vertical acceleration α that does not exceed the predetermined value (+ α0) between the fluctuations of the vertical acceleration α corresponding to the first loading operation and the second loading operation. Existing. This indicates, for example, a change in acceleration caused by the driver moving the body up and down while the driver of the heavy machine 1 is holding the portable terminal 5a. In the construction management system according to the present embodiment, such acceleration fluctuations are not treated as acceleration fluctuations associated with the turning of the heavy equipment 1, so that the vertical movement of the work front 1a of the heavy equipment 1 can be detected with high accuracy. It has become.

  In this embodiment, since only the change in vertical acceleration is detected instead of the turning speed in the first embodiment, steps S102 and S108 are different from the processing flow according to the first embodiment. The details are different. Hereinafter, step S1021, step S1082, and step S1083 which are different parts will be described.

  As shown in FIG. 12, in step S1021, in the input and calculation of data of the heavy equipment 1 and the transport equipment 2, the position information (X1, Y1,...) Is received from the mobile terminal 5a arranged in the heavy equipment 1 via the communication means 3. Z1), acceleration information, and time information are input to the server 4, and the vertical acceleration α is calculated by the calculation unit 12. In addition, position information (X2, Y2, Z2) and time information are input to the server 4 from the mobile terminal 5b disposed in the transporter 2 via the communication unit 3. That is, this embodiment is different from step S1020 of the first embodiment only in calculating and extracting the vertical acceleration α from the acceleration information.

  As shown in FIG. 13, in step S1082, as the loading operation is detected, the vertical acceleration α obtained by calculation in step S1021 is outside the determination acceleration range (−α0 <α <+ α0) and the vertical acceleration is detected. It is determined whether the variation of α is a loading operation pattern. In the present embodiment, as described above, when the vertical acceleration α becomes equal to or greater than the predetermined value (+ α0) on the plus side and then equal to or smaller than the predetermined value (−α0) on the minus side, the work of the heavy machine 1 is performed. It is determined that the loading operation has been performed on the assumption that the front 1a has moved up and down (step S1082: Yes). If it is determined that there has been a loading operation, 1 is added to the loading operation count m (m = m + 1), the loading operation count m is updated (step S1083), and then step S109. Will proceed. On the other hand, if it is determined that there is no loading operation, the loading operation count m is not updated, and the process proceeds to step S109.

  As described above, in the construction management system according to the present embodiment, in addition to the distance between the heavy machine 1 and the transporter 2, the vertical movement related to the loading operation of the heavy machine 1 is added as a criterion for loading. It is determined whether or not work is being performed. For this reason, there is no misjudgment that determines that the transporter 2 is simply parked in the vicinity of the heavy machinery 1 is erroneously loading, and accurate loading management and progress management at the construction site associated therewith are eliminated. It becomes possible to do. Further, even when it is difficult to detect the turning motion due to the positional relationship between the heavy machinery 1 and the transporter 2, the vertical motion related to the loading operation can be detected more reliably, and the loading determination is performed accurately. It becomes possible.

  In this embodiment, the vertical acceleration α is extracted from the acceleration information transmitted from the mobile terminal 5a. However, only information (ie, vertical acceleration α) obtained by removing unnecessary acceleration information from the mobile terminal 5a is used. It may be transmitted. In addition, it is possible to determine both the turning operation of the first embodiment and the vertical operation of the present embodiment in accordance with the situation at the construction site, and to determine the presence or absence of the loading operation from the determination result. When the heavy machine 1 is a machine that performs a loading operation with traveling such as a wheel loader, acceleration in a direction perpendicular to the vertical direction (that is, acceleration in the front-rear direction) may be used for determination.

<Example 3>
In Example 1 mentioned above, although the loading operation | work of the heavy machine 1 with respect to the one conveying machine 2 was managed, the some conveying machine may be used by the construction site. A construction management system in the case where such a plurality of transporters are used will be described below as a third embodiment with reference to FIGS. 14 to 17. Here, FIG. 14 is a schematic diagram illustrating the overall configuration of the construction management system according to the present embodiment. FIG. 15 is a functional block diagram of the construction management system according to the present embodiment. Furthermore, FIG. 16 is a display example of the loading work record in the construction management system according to the present embodiment. FIG. 17 is a determination flow of loading work by the construction management system according to the present embodiment. In addition, about the same content as Example 1, the description is abbreviate | omitted.

As shown in FIG. 14, the construction management system according to the present embodiment includes the position information and acceleration information of the heavy machinery 1 and the positions of a plurality of transporters 2 a _{1 to} 2 a _n (n is an arbitrary number) at the civil engineering work site. The information can be transmitted to the server 4 via the predetermined communication means 3. That is, as a further becomes different from that in Example 1, to each vehicle transporter _2a 1 to 2A region _n, independent portable terminal _5b 1 _{~5b n} are arranged. Therefore, the server 4 via the transporter _2a 1 to 2A region _n mobile terminal _5b 1 _{~5b n} from the communication means 3, the position information and the time information of each transporter _2a 1 to 2A region _n are respectively input become.

Next, as shown in FIG. 15, the construction management system according to the present embodiment includes a data input unit 21, an approach determination unit 22, a loading operation determination unit 23, a loading operation determination unit 24, and a loading operation recording unit 25. In addition to the loading work record display unit 26, an ID management unit (identification information management unit) 27 is further provided. ID management unit 27 manages the identification information attached to each transporter _2a 1 _{~2a n.} For example, ID management unit 27, each transporter _2a 1 acquires to 2A region _n mobile terminal _5b 1 _{~5b n} calling number of (if smartphone telephone number), each transporter 2a in correspondence to each outgoing number It sets the carrying machine ID to _{1 ~2a n.} The ID management unit 27 distributes and manages position information, acceleration information, and time information, which are each data input to the data input unit 21, for each transporter ID. That is, the data input unit 21, each data without being distinguished from each transporter _2a 1 to 2A region _n is inputted, ID management unit 27, corresponds to the haulage machine _2a 1 to 2A region _n the respective data It is a function to manage by distinguishing each transporter ID. For this reason, the ID management unit 27 associates and records the network interface 15 of the server 4, the calculation unit 12 that controls the network interface 15, and the transporter ID and the transmission numbers of the mobile terminals 5 b _{1 to} 5 b _n. The function of the ID management unit 27 is realized by the control of the network interface 15 by the calculation unit 12 and the storage of data in the second recording unit 14.

The approach determination unit 22, loading operation judging unit 23, and loading operation determination unit 24 in association with the transporter ID (i.e., based on the identification information), each transporter _2a 1 to 2A region _n Each determination is made for. Similarly, loading operation recording unit 25 also in correspondence with the respective transporter ID, and updates a record of loading work for each transporter 2a ₁ ~2a _n. For example, as shown in FIG. 16, the loading operation recording unit 25 records the number of loading operations (N) and the amount of work soil (m ³ ) for each transporter ID. Moreover, loading operation recording unit 25 calculates the sum of the loading operation of the transporter 2a ₁ to 2A region _n, the total loading operation count the total value is calculated results in a construction site, and reported as total work amount of soil To do.

Loading operation record display unit 26, as in the first embodiment, it is also possible to display each loading operation record transporter 2a ₁ to 2A region _n, as further shown in FIG. 16, as a whole construction site It is also possible to display the loading work record. The display may be freely switched by the construction site manager operating the work terminal 10.

Next, construction management processing in the construction management system according to the present embodiment will be described with reference to FIG. In the determination flow in the present embodiment, processing related to ID is added as compared to the case of the first embodiment. Further, in the determination flow in the present embodiment, as compared with the case of the first embodiment, processing relating to recording of the loading start time ts and the loading end time te is not performed. That is, in the determination flow in the present embodiment, step S107 and step S113 in FIG. 7 are not provided. Therefore, in the present embodiment, the start time and end time of the loading operation in each transporter 2a ₁ to 2A region _n does not appear is assumed.

In determination flow in this embodiment, if any of the transporter _2a 1 to 2A region _n is determined to be close to the heavy equipment 1 at step S103 (step S103: Yes), conveying it is determined that approaches the heavy equipment 1 The transporter ID is set in the machine (FIG. 17: Step S120). Here, when a transporter whose transporter ID has already been set approaches, the same transporter ID will be reset, but when a transporter for which the transporter ID is not set approaches In this case, a transporter ID that is not used is set. That is, a dedicated transporter ID is set for one transporter, and is not duplicated. The determination as to whether or not the transporter ID is set for the transporter is made by referring to a correspondence table (not shown) recorded in the second storage unit 14.

  When the transporter ID is set, it is determined whether or not the set transporter ID is the same as the transporter ID set in the previous determination flow (FIG. 17: step S121). That is, the transporter determined to have approached heavy machine 1 in step S103 of the previous determination flow and the transporter determined to have approached heavy machine 1 in step S103 of the current determination flow. It is determined whether or not they are the same. In step S121, when it is determined that the transporters determined to be close are the same in the previous and current determination flows, the process proceeds to step S108 and the subsequent steps, and the loading operation count and loading are performed as in the first embodiment. Work determination is performed.

  In addition, in S111a and S112a, the point which processes according to transporter ID differs from S111 and S112 of Example 1, and since it is the same about a substantial process, the description is abbreviate | omitted. In step S109a, since the loading start time ts is not set in the determination flow, the determination process is performed using the time information when m = 1 in step S108. .

  On the other hand, when it is determined in step S121 that the transporters determined to be close are different in the previous and current determination flows, the process proceeds to step S104 and subsequent steps, and various determinations, processes, and loading work records are updated. Is called. In addition, in step S114a-S117a, S119a, the point by which a process is performed corresponding to transporter ID is different from step S114-117a, S119a of Example 1, and since it is the same about a substantial process, The description is omitted.

As described above, in the construction management system according to the present embodiment, the loading operation to the transporter _2a 1 to 2A region _n of a plurality by heavy equipment 1 of one, turning operation of the transporter _2a 1 to 2A region _n the add the criteria, each transporter 2a ₁ to 2A region _n is the whether implemented loading work is determined. Therefore, likewise, there is no erroneous judgment to determine that the transporter 2a ₁ to 2A region _n is the loading work simply by mistake if parked in the vicinity of the heavy equipment 1 as in Example 1, loading It becomes possible to accurately manage the progress of the work and the construction site accompanying this. Also, it will be able to easily check the working conditions of each transporter 2a ₁ to 2A region _n, and easily identify a bad transporter of work efficiency, to perform the measures such as removing the fault easily and quickly Is possible.

  In this embodiment, it is assumed that a plurality of transport machines are used. However, when a plurality of heavy machines are used, a case where a plurality of heavy machines and transport machines are used is also used. By the same ID management, it is possible to perform loading management and construction progress management.

1 Heavy machinery (work machine)
DESCRIPTION OF SYMBOLS 1a Work front 1b Upper turning body 2 Transporter 3 Communication means 4 Server 5a, 5b Mobile terminal 6 Positioning satellite 7 Communication base station 8 Communication company 9 Communication line 10 Work terminal 12 Calculation unit 13 First storage unit 14 Second storage unit 15 Network interface 16 External interface 17 Display 18 Keyboard 21 Data input unit 22 Approach determining unit 23 Loading operation determining unit (close operation determining unit)
24 loading operation determination unit 25 loading operation recording unit 26 loading operation record display unit 27 ID management unit (identification information management unit)
C Excavation position D Loading position r Distance R Approach distance judgment

Claims (5)

In a construction management system having a server that acquires information on a transporter and a work machine at a construction site via a communication line and manages the work status of the construction site,
The server includes a data input unit that acquires position information of the transporter, position information of the work machine, and acceleration information;
An approach determination unit for determining an approach state between the transporter and the work machine from the position information of the transporter and the position information of the work machine;
A loading operation determination unit that determines the presence or absence of a loading operation by the work machine from the acceleration information of the work machine;
A loading operation determination unit that determines the state of the loading operation to the transporter by the work machine based on the determination result of the approach determination unit and the loading operation determination unit;
The loading operation determination unit, when the approach of the transporter and the work machine continues for a predetermined time or more, and when the load operation by the work machine is a predetermined number of times or more, to the transporter by the work machine It is determined that the loading operation has been performed.   The loading work recording unit that updates a loading work record at the construction site when the loading work determination unit determines that the loading work has been performed. Construction management system.   The loading operation determination unit extracts fluctuations in the turning speed of the work machine from the acceleration information, and when the turning speed becomes equal to or greater than a predetermined value on the positive side, or less than a predetermined value on the negative side, or The construction management system according to claim 1, wherein when the turning speed becomes equal to or greater than a predetermined value on the plus side after becoming equal to or less than a predetermined value on the minus side, it is determined that the loading operation has been performed by the work machine.   The loading operation determination unit extracts the vertical acceleration of the work machine in the vertical direction from the acceleration information, and when the vertical acceleration is equal to or greater than a predetermined value on the positive side, The construction management system according to claim 1, wherein when the vertical acceleration becomes equal to or greater than a predetermined value on the plus side after becoming equal to or less than a predetermined value on the minus side, it is determined that the loading operation by the work machine has occurred. The server includes an identification information management unit that manages identification information attached to each of the transporters when there are a plurality of the transporters.
The construction according to claim 1, wherein the approach determination unit, the loading operation determination unit, and the loading operation determination unit perform determination for each of the transporters based on the identification information. Management system.

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