Location candidate calculation device and location candidate calculation system

Abstract

To provide a logistics base candidate computation device and logistics base candidate computation system, capable of quantitatively presenting logistics bases.SOLUTION: A server 60, which is an example of a base candidate computation device, is configured to compute a centroid position of multiple locations weighted by weight values according to GPS data, which is an example of respective positions of the multiple locations, and Li data, which is an example of respective weight values of loads on vehicles 41 measured at the multiple locations, and output a base candidate based on the centroid position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a base candidate calculation device and a base candidate calculation system. [Background technology]

[0002] When managers of logistics companies and the like decide on logistics bases such as logistics centers, they often make their decisions based on factors such as proximity to urban areas, good transportation access, and low fixed costs and rent, and there are few quantitative indicators for deciding on logistics bases.Technologies related to the selection of logistics bases are described in Patent Document 1 and Patent Document 2.

[0003] Patent Document 1 discloses a logistics center planning method for comparing multiple plan proposals that take into account the consolidation and closure of several logistics centers. This logistics center planning method calculates and compares the logistics costs of the current logistics network with the logistics costs of the plan proposals, calculates cost benefits, and makes a relative comparison of the cost benefits of each plan proposal, making it possible to select the plan that is most cost-effective.

[0004] Patent Document 2 discloses a candidate location evaluation program that facilitates the selection of locations for establishing facilities such as company bases, logistics centers, commercial facilities, etc. This program accepts candidate locations and calculates an index value for each candidate location based on the number of residents and other people within a range that a vehicle can travel within a certain time period. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-196359 [Patent Document 2] Japanese Patent Application Publication No. 2019-74836 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the technology described in Patent Document 1 requires a huge amount of data to calculate logistics costs, which is labor-intensive, and logistics costs can change depending on external factors such as the time of year and the environment. Furthermore, the technology described in Patent Document 2 does not take into account factors related to the logistics company's profits, such as the weight of the goods, when calculating the index value. As a result, profits decrease when transporting small amounts of goods over long distances, resulting in poor profit efficiency. Therefore, there is a need for technology that can provide quantitative indexes that take logistics profits into account without requiring a huge amount of data.

[0007] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a base candidate calculation device and a base candidate calculation system that can quantitatively present logistics bases. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the base candidate calculation device according to the present invention has the following features. A base candidate calculation device that assumes a case where, at each of a plurality of points, a vehicle that departs from a base in an empty state without any objects loaded thereon and arrives at the point is loaded with an object, The aforementioned a position for each of a plurality of points; and a position measured at each of the plurality of points. The items were loaded onto the vehicle at each of the above locations. a calculation unit that calculates, based on a weight value of a load, a center of gravity position of the plurality of points weighted by the weight value; an output unit that outputs base candidates based on the center of gravity positions; A base candidate calculation device comprising:

[0009] In order to achieve the above-mentioned object, the base candidate calculation system according to the present invention has the following features. A base candidate calculation system including an on-board device mounted on a vehicle, the base candidate calculation device, and a communication device capable of communicating with at least the base candidate calculation device, The in-vehicle device a position acquisition unit that acquires a position for each of the plurality of points; a weight acquisition unit that acquires the weight value based on an output from a load sensor that measures a load applied to each wheel of the vehicle; a transmitting unit that transmits the position and the weight value to the base candidate calculation device, the base candidate calculation device, a receiving unit for receiving the position and the weight value, the calculation unit calculates the center of gravity position based on the received position and weight value; the output unit transmits the base candidate based on the center of gravity position to the communication device; The communication device receives and displays the base candidates. Base candidate calculation system. [Effects of the Invention]

[0010] According to the present invention, it is possible to quantitatively present logistics bases.

[0011] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram showing an example of the configuration of a base candidate calculation system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an example of the configuration of the in-vehicle device shown in FIG. [Figure 3] FIG. 3 is a block diagram illustrating an example of the configuration of the server illustrated in FIG. [Figure 4] FIG. 4 is an explanatory diagram regarding calculation of logistics base candidates. [Figure 5] FIG. 5 is an explanatory diagram regarding calculation of logistics base candidates. [Figure 6] FIG. 6 is a diagram showing an example of a screen display of logistics base candidates. DETAILED DESCRIPTION OF THE INVENTION

[0013] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0014] Fig. 1 is a diagram showing an example of the configuration of a base candidate calculation system 1 according to an embodiment of the present invention. Fig. 2 is a block diagram showing an example of the configuration of an in-vehicle device shown in Fig. 1, and Fig. 3 is a block diagram showing an example of the configuration of a server 60 shown in Fig. 1.

[0015] The base candidate calculation system 1 is used, for example, by a logistics company that manages multiple vehicles 41 to newly determine logistics base candidate locations. The base candidate calculation system 1 includes an on-board device mounted on the vehicle 41, a server 60 as an example of the base candidate calculation device, and a communication device 80. The on-board device includes an on-board unit 10, a load sensor 20, and a wireless communication module 30. The on-board device and the server 60 are configured to be able to communicate with each other via a base station 51 of a wide area communication network and an internet network 52. Note that the wide area communication network and the internet network 52 are merely examples, and any communication method may be used as long as the on-board device and the server 60 can communicate with each other. The wide area communication network and the internet network 52 may be, for example, a mobile communication network (cellular network) such as LTE (Long Term Evolution) / 5G (5th Generation), or a wireless LAN (Local Area Network). The server 60 and the communication device 80 are connected to each other so as to be able to communicate with each other wirelessly or via a wired connection.

[0016] In the base candidate calculation system 1, the server 60 calculates candidates for logistics bases based on GPS data, which indicates the longitude and latitude of the vehicle and is acquired from the in-vehicle device 10 as an example of a location, and the weight value of the cargo of the vehicle 41 (hereinafter also referred to as load capacity) acquired from the load sensor 20. The load capacity is a value measured at the location indicated by the GPS data. In the present disclosure, a logistics base is a base for transporting cargo by vehicle, and in principle, multiple vehicles depart from the logistics base, load cargo such as goods at multiple locations such as factories, transport the cargo to the delivery destination, and then return to the logistics base. Furthermore, at the logistics base, the cargo collected from each location is sorted and other processes are carried out, loaded onto vehicles, and transported to each delivery destination.

[0017] (Configuration of in-vehicle device) As an example, as shown in FIG. 1, in the case of a vehicle with one front axle and two rear axles, six load sensors 20 are installed in total, one for each wheel. Each load sensor 20 is installed so as to measure the magnitude of the load applied to the suspension supporting the wheel at each of the front left and right sides, the left and right sides of the first rear axle, and the left and right sides of the second rear axle. The load sensor 20 includes, for example, a strain detection element that detects the amount of strain caused by the load applied to the installation location, and converts a voltage change in an electrical signal based on the amount of strain detected by the strain detection element into a frequency change to generate data representing the magnitude of the load detected by the strain detection element. The generated load detection data (hereinafter also referred to as LI (Load Inductor) data) is input to a sensor input unit 12 of the vehicle-mounted device 10, which will be described later.

[0018] As shown in FIG. 2, an in-vehicle device 10 constituting an in-vehicle device includes a control unit 11, a sensor input unit 12, a GPS receiving unit 13, a storage unit 14, and an input / output I / F 15.

[0019] The control unit 11 is a processing device such as a CPU (Central Processing Unit) that performs various controls and calculations, and controls the overall operation of the vehicle-mounted device 10. The control unit 11 executes programs stored in the storage unit 14 or the like to realize various functions.

[0020] The sensor input unit 12 performs signal processing to input to the control unit 11 each signal output from the load sensor 20, the vehicle speed sensor, the G sensor, the gyro sensor, and the like.

[0021] The GPS receiver 13 receives radio waves from multiple GPS (Global Positioning System) satellites via an antenna. Based on the multiple received signals received by the GPS receiver 13, the control unit 11 can calculate and obtain latitude and longitude (hereinafter also referred to as GPS data) as an example of position information indicating the current position of the vehicle. In addition, the control unit 11 can obtain time information based on the signals received by the GPS receiver 13.

[0022] The storage unit 14 includes a non-volatile memory and a volatile memory. The non-volatile memory stores in advance various programs that the control unit 11 can execute, various constant data required for control, tables, etc. The volatile memory is used to temporarily store data generated by the control unit 11 during processing. The storage unit 14 stores the latitude and longitude of each of a plurality of points, and the weight value of the load on the vehicle 41 measured at each point.

[0023] The input / output I / F 15 performs processing for outputting data generated by the control unit 11 to the wireless communication module 30 .

[0024] The wireless communication module 30 provides a wireless communication function for data communication between the vehicle-mounted device 10 and the base station 51 .

[0025] The vehicle-mounted device 10 transmits to the server 60 via the wireless communication module 30 the latitude and longitude of each of the plurality of points and the weight value of the load on the vehicle 41 measured at each point.

[0026] (Server 60 configuration) As shown in FIG. 3, the server 60 includes a control unit 61, a communication unit 62, a storage unit 63, and a data accumulation unit 64.

[0027] The control unit 61 comprehensively controls each unit of the server 60. The control unit 61 calculates the center of gravity positions of the multiple points weighted by the weight values, based on the latitude and longitude of each of the multiple points received from the in-vehicle device and the weight values ​​of the cargo on the vehicle 41 measured at each point.

[0028] The communication unit 62 communicates with the in-vehicle device via the base station 51 of the wide area communication network and the Internet network 52. The communication unit 62 can also communicate with the communication device 80.

[0029] The storage unit 63 is a memory capable of storing various data. The data accumulation unit 64 accumulates data received from the in-vehicle device and the center of gravity positions of multiple points calculated by the control unit 61. The data accumulation unit 64 may accumulate data received from multiple in-vehicle devices, and the weight value of the cargo at each point may be the accumulated value of the cargo loaded by multiple vehicles at each point. The data accumulation unit 64 also accumulates image data including map data.

[0030] As will be described later, the server 60 calculates the center of gravity of the multiple locations weighted by weight values ​​based on the GPS data for each of the multiple locations and the loads measured at each of the multiple locations. The server 60 outputs a logistics base candidate, which is an example of a base candidate based on the calculated center of gravity position, by transmitting it to the communication device 80.

[0031] (Example of calculation of logistics base) The calculation of logistics base candidates is explained below. ,car The shorter the distance traveled when the vehicle is empty, i.e., when the vehicle is not loaded with goods, the greater the profit. Therefore, the server 60 provides a quantitative guide for determining such profitable locations as logistics bases.

[0032] Before explaining the method for calculating candidate logistics bases performed by the server 60, calculation of logistics bases when transporting cargo to points A and B without taking into account the load capacity will be explained with reference to Fig. 4. In the example of Fig. 4, profits can be maximized by having a logistics base at point C, which is the midpoint between points A and B.

[0033] Figure 5 shows a case where a vehicle 41 departs from a logistics base point C1 and loads a 2000 kg load at point A. , and by vehicle 41 departing from point C1,A 1000 kg load is loaded at point B. R Here is an example. In this case, by having a logistics base at point C1, which is closer to point A than the midpoint between points A and B, vehicle 41 travels empty between points A and C1, and the distance traveled empty can be shortened. As a specific example, point C1, which is the center of gravity of points A and B weighted by weight values, is calculated as a position that satisfies the following (Equation 1).

[0034]

number

[0035] FIG. 6 shows an example of calculation of logistics base candidates when the load amounts at each of multiple points P1, P2, ..., Pn are M1, M2, ..., Mn, respectively. FIG. 6 is a display image example S showing the center of gravity PG of multiple points P1, P2, ..., Pn (hereinafter also referred to as multiple points P1, etc.) calculated by server 60. Display image example S is output from server 60 and displayed on communication device 80, and each point P1, etc. and the center of gravity PG are superimposed on image I. Image I is an image based on map data. Furthermore, in display image example S of FIG. 6, weight values ​​obtained by measuring the weight value of the load on vehicle 41 are displayed as bar graphs M1, M2, ..., Mn, respectively. In FIG. 6, a trajectory T traveled by vehicle 41 is displayed. Each bar graph M1 to Mn is displayed with a longer length in the R direction according to the load amount.

[0036] In the example of Fig. 6, the latitude and longitude, which are the positions of each of the multiple points P1 to Pn, are expressed by coordinates on mutually orthogonal X and Y axes, and the load amount at each point P1 to Pn is expressed by coordinates on the Z axis, which is perpendicular to the X and Y axes. The direction of the Z axis corresponds to the R direction shown in Fig. 6. As a specific example, the server 60 calculates the X coordinate of the center of gravity position PG in this XYZ orthogonal coordinate system using the following (Equation 2). Similarly, it calculates the Y coordinate.

[0037]

number

[0038] The server 60 receives the GPS data for each of the multiple points P1 to Pn and the LI data measured at each of the points P1 to Pn from the in-vehicle device 40, and calculates the center-of-gravity position PG of the multiple points P1 to Pn weighted by the load based on the received data. Note that if the GPS data and LI data for each point are stored in a recording medium such as a memory card in the in-vehicle device 10, the server 60 may read the data in the recording medium to acquire the GPS data and LI data and calculate the center-of-gravity position PG.

[0039] The server 60 outputs image data indicating the relationship between the GPS data for each of the multiple points and the center of gravity position PG by transmitting it to the communication device 80. If the calculated center of gravity position PG is located at sea, for example, where it is difficult to set up a logistics base, or if it corresponds to a specific location that has been set as an exclusion location in advance, the server 60 can output positions near the center of gravity position PG as base location candidates. The communication device 80 displays the image shown in FIG. 6 on the display unit based on the received image data. The image shown in FIG. 6 is an image in which the GPS data for each of the multiple points P1 to Pn and the base location candidates based on the center of gravity position PG are superimposed on image I, i.e., map data.

[0040] 6 shows the relationship between the location of each of the multiple points P1, etc. and the base candidate based on the center of gravity position PG, and furthermore, the load amount at each point P1, etc. is displayed as a bar graph, so that the relationship between the load amount at each point and the base candidate can be easily understood at a glance. Therefore, the manager of the logistics company can confirm the validity of the base candidate output from the server 60 by referring to the load amount at each point around the base candidate.

[0041] The present invention is not limited to the above-described embodiments and can be modified, improved, and the like as appropriate. Furthermore, the material, shape, dimensions, numerical values, configuration, number, location, and the like of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention. For example, in the above-described embodiment, the server 60 functions as a base candidate calculation device that calculates base candidates, but the vehicle-mounted device 10 may calculate the base candidates. Furthermore, the communication device 80 or another information processing device may receive, for example, the positions of each of a plurality of points and the weight values ​​of the load measured at each point from the vehicle-mounted device 10, and calculate the base candidate based on these.

[0042] Here, the features of the base candidate calculation device and base candidate calculation system according to the above-described embodiment of the present invention will be briefly summarized and listed below in [1] to [5].

[0043] [1] A calculation unit (control unit 61) that calculates a center of gravity position of each of a plurality of points based on the position (GPS data) of each of the plurality of points and the weight value (LI data) of the load of the vehicle (41) measured at each of the plurality of points, the center of gravity position being weighted by the weight value; an output unit (communication unit 62) that outputs base candidates based on the center of gravity positions; A base candidate calculation device (server 60) comprising:

[0044] According to the location candidate calculation device configured as described in [1] above, the center of gravity of multiple locations weighted by weight values ​​is calculated, and location candidates based on the center of gravity are output, providing a guide for quantitatively determining locations. Therefore, managers of logistics companies can increase profits and manage their businesses more efficiently by establishing locations near locations with large loads.

[0045] [2] The output unit outputs image data indicating a relationship between the position of each of the plurality of points and the center of gravity position. The base candidate calculation device according to [1] above.

[0046] According to the base candidate calculation device configured as above in [2], the relationship between the positions of a plurality of points and the center of gravity can be easily grasped from the image data, which is useful for determining bases.

[0047] [3] The image data includes image data in which the position and the center of gravity position for each of the plurality of points are superimposed on map data. The base candidate calculation device according to [2] above.

[0048] According to the base candidate calculation device having the configuration [3] above, the relationship between the positions of multiple points and the center of gravity position can be easily grasped on the map, making it easier to determine base locations taking into account the actual topography, road conditions, etc.

[0049] [4] The image data includes image data in which the corresponding weight values ​​at each of the plurality of points are represented by a bar graph. The base candidate calculation device according to [2] or [3] above.

[0050] According to the base candidate calculation device configured as described above in [4], the weight values ​​are displayed as a bar graph, so that the weight values ​​at each point can be intuitively grasped.

[0051] [5] A base candidate calculation system (1) including an on-board device (40) mounted on a vehicle (41), the base candidate calculation device (server 60) according to any one of [1] to [4] above, and a communication device (80) capable of communicating with at least the base candidate calculation device, The in-vehicle device a position acquisition unit (GPS receiving unit 13, control unit 11) that acquires the position of each of the plurality of points; a weight acquisition unit (sensor input unit 12, control unit 11) that acquires the weight value based on an output from a load sensor (20) that measures the load applied to each wheel of the vehicle; a transmitting unit (input / output I / F 15, wireless communication module 30) that transmits the position and the weight value to the base candidate calculation device, the base candidate calculation device, a receiving unit (communication unit 62) for receiving the position and the weight value; the calculation unit calculates the center of gravity position based on the received position and weight value; the output unit transmits the base candidate based on the center of gravity position to the communication device; The communication device (80) receives and displays the base candidates. Base candidate calculation system.

[0052] According to the base candidate calculation system configured as described above in [5], the center of gravity of multiple points weighted by weight values ​​is calculated, and base candidate locations based on the center of gravity are output, providing a quantitative guide for determining base locations. Therefore, managers of logistics companies can increase profits and manage their businesses more efficiently by establishing base locations near points with large load volumes. [Explanation of symbols]

[0053] 1. Base candidate calculation system 10 Onboard equipment 11 Control section 12 Sensor input section 13 GPS receiver 14 Storage section 20 Load Sensor 30 Wireless communication module 40 Onboard equipment 41 vehicles 60 servers 61 Control Unit 62 Communications Department 63 Memory section 64 Data Storage Unit 80 Communication equipment PG center of gravity position

Claims

1. A base candidate calculation device that assumes a case where, at each of a plurality of points, a vehicle departs from a base in an empty state without any cargo and arrives at the point, and then loads cargo onto the vehicle, a calculation unit that calculates a center of gravity position of the plurality of points weighted by the weight values ​​based on the positions of the plurality of points and weight values ​​of the loads loaded on the vehicle at the respective points, the weight values ​​being measured at the respective points; an output unit that outputs base candidates based on the center of gravity positions; A base candidate calculation device comprising:

2. the output unit outputs image data indicating a relationship between the position of each of the plurality of points and the center of gravity position. The base candidate calculation device according to claim 1 .

3. the image data includes image data in which the positions and the center of gravity positions of the plurality of points are superimposed on map data; The base candidate calculation device according to claim 2 .

4. the image data includes image data in which the corresponding weight values ​​at each of the plurality of points are represented by a bar graph; The base candidate calculation device according to claim 2 or 3.

5. 5. A base candidate calculation system including: an on-board device mounted on a vehicle; the base candidate calculation device according to claim 1; and a communication device capable of communicating with at least the base candidate calculation device, The in-vehicle device a position acquisition unit that acquires a position for each of the plurality of points; a weight acquisition unit that acquires the weight value based on an output from a load sensor that measures a load applied to each wheel of the vehicle; a transmitting unit that transmits the position and the weight value to the base candidate calculation device, the base candidate calculation device, a receiving unit for receiving the position and the weight value, the calculation unit calculates the center of gravity position based on the received position and weight value; the output unit transmits the base candidate based on the center of gravity position to the communication device; The communication device receives and displays the base candidates. Base candidate calculation system.

Images