JP2020052930A - Towed vehicle management system, towed vehicle management method, and towed vehicle management program - Google Patents

Abstract

To provide a towed vehicle management system capable of managing the location of a towed vehicle in a towed vehicle parking area.SOLUTION: The towed vehicle management system includes a terminal unit 100 and a server 200. The server 200 receives a piece of separation information in which a piece of identification information of the towed vehicle and a piece of positional information are associated with each other from the terminal unit 100. The server 200 detects a partial area where the towed vehicle is located on the basis of the separation information and generates a piece of towed vehicle management information. The server 200 is configured so as to, when receiving a search request, detect the partial area on the basis of the identification information and the towed vehicle management information included in the search request and notifies the detection result to the terminal unit 100.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a towed vehicle management system and the like.

  Towed vehicles are used to transport luggage. FIG. 20 is a diagram illustrating an example of a towing vehicle. As shown in FIG. 20, the towing vehicle 10 has a tractor head (towing vehicle) 10a and a chassis (towing vehicle) 10b detachably connected thereto. Luggage is loaded on the chassis 10b. The luggage is transported by the tractor head 10a of the towing vehicle 10 towing the chassis 10b.

  Here, since the chassis 10b is detachable, a plurality of shipping companies may cooperate to transport the chassis 10b to a destination. For example, the chassis 10b is pulled by the tractor head 10a to a chassis storage area (yard), separates from the tractor head 10a, and parks at a predetermined parking space. On the other hand, the driver of another tractor head (not shown) finds the chassis 10b to be towed from a plurality of parking spaces, connects the found chassis 10b with another tractor head, and tow to the next point. I do.

  Note that there is a conventional technique in which an operation recorder such as a digital tachograph that can be connected to a network is mounted on a commercial vehicle and travel information of the commercial vehicle is collected and analyzed. By using this conventional technique, the traveling state of the towing vehicle 10 can be specified.

JP-A-2006-075991

  However, the above-described conventional technique has a problem that the position of the towed vehicle in the towed vehicle storage space cannot be managed.

  In the prior art, an operation recorder is attached to the tractor head 10a of the towing vehicle 10, and it is possible to specify the traveling state of the tractor head 10a. However, the chassis 10b is pulled by a plurality of different tractor heads and is parked in the chassis storage, so that it is difficult to manage the position of the chassis in the chassis storage.

  In one aspect, an object of the present invention is to provide a towed vehicle management system, a towed vehicle management method, and a towed vehicle management program that can manage the position of a towed vehicle in a towed vehicle storage space. .

  In the first plan, the towed vehicle management system has a terminal device and a server. The terminal device has an acquisition unit and a first notification unit. The server has a generation unit, a detection unit, and a second notification unit. The acquisition unit acquires the position information of the terminal device when the towed vehicle existing near the towed vehicle and coupled to the towed vehicle has left, and the identification information for uniquely identifying the towed vehicle that has left. The first notification unit notifies the server of leaving information in which the identification information is associated with the position information. When receiving the departure information, the generation unit detects the partial area where the towed vehicle is located from the plurality of partial areas based on the position information of the departure information, and associates the detected partial area with the identification information. Generate towing vehicle management information. When receiving the search request including the identification information, the detection unit detects the partial area associated with the identification information included in the search request based on the identification information included in the search request and the towed vehicle management information. I do. The second notification unit notifies the detection result of the detection unit to the terminal device.

  The position of the towed vehicle in the towed vehicle storage area can be managed.

FIG. 1 is a diagram illustrating an example of a system according to the embodiment. FIG. 2 is a diagram illustrating an example of the yard according to the embodiment. FIG. 3 is a diagram illustrating an example of a display screen of the terminal device. FIG. 4 is a diagram illustrating an example of a search result display screen. FIG. 5 is a functional block diagram illustrating the configuration of the terminal device according to the embodiment. FIG. 6 is a diagram illustrating an example of a data structure of the related information. FIG. 7 is a functional block diagram illustrating the configuration of the server according to the embodiment. FIG. 8 is a diagram illustrating an example of a data structure of the traveling situation table. FIG. 9 is a diagram illustrating an example of the data structure of the chassis management table. FIG. 10 is a diagram illustrating an example of the data structure of the parking lot table. FIG. 11 is a diagram illustrating an example of the data structure of the model table. FIG. 12 is a diagram showing an example of another display screen of the search result. FIG. 13 is a flowchart illustrating a processing procedure of the terminal device at the time of connection. FIG. 14 is a flowchart illustrating a processing procedure of the terminal device at the time of leaving. FIG. 15 is a flowchart illustrating a processing procedure of the server when the relevant information at the time of leaving is received. FIG. 16 is a flowchart illustrating a processing procedure of the server when related information at the time of combination is received. FIG. 17 is a flowchart illustrating a processing procedure of the server when a search request is received. FIG. 18 is a diagram illustrating an example of a hardware configuration of a computer that realizes the same function as the terminal device according to the embodiment. FIG. 19 is a diagram illustrating an example of a hardware configuration of a computer that realizes the same function as the server according to the embodiment. FIG. 20 is a diagram illustrating an example of a towing vehicle.

  Hereinafter, embodiments of a towed vehicle management system, a towed vehicle management method, and a towed vehicle management program disclosed in the present application will be described in detail with reference to the drawings. The present invention is not limited by the embodiment.

  FIG. 1 is a diagram illustrating an example of a system according to the embodiment. In this system, a terminal device 100 and a server 200 are mutually connected via a network 50. In this embodiment, an example of a towed vehicle will be described using a chassis, but the invention is not limited to this. For example, a container or the like may be used.

  In FIG. 1, a towing vehicle 20 has a tractor head 20a and a chassis 20b detachably connected thereto. The tractor head 20a of the towing vehicle 20 transports the chassis to a predetermined yard (chassis storage area) by towing the chassis 20b. After moving the towing vehicle 20 to the yard, the driver parks the chassis 20b by detaching the chassis 20b from the tractor head 20a.

  FIG. 2 is a diagram illustrating an example of the yard according to the embodiment. The yard shown in FIG. 2 has a plurality of parking spaces 1 to 16. The driver of the towing vehicle 20 parks the chassis 20b in any one of the plurality of parking spaces 1 to 16. Each parking space corresponds to a partial area.

  The other driver taking over the transportation of the chassis 20b detects the towing target chassis 20b parked in one of the plurality of parking spaces 1 to 16 by operating the terminal device. The process of detecting a target chassis (for example, chassis 20b) will be described later. When the other driver finds the corresponding chassis 20b, the other driver connects the other tractor head and the chassis 20b and tow. In the following description, when the description is not limited to a specific chassis and a specific tractor head, reference numerals for the chassis and the tractor head are omitted.

  A transmitter 21 that constantly transmits a beacon is installed on the chassis 20b. The transmitter 21 has a solar cell 21a that converts sunlight into electric power, and receives electric power from the solar cell 21a. The beacon transmitted from the transmitter 21 includes information of “chassis number” that uniquely identifies the chassis 20b.

  The driver of the towing vehicle 20 has the terminal device 100. The terminal device 100 is connected to the server 200 via the network 50. The terminal device 100 communicates with the artificial satellite 30 to calculate position information. In addition, the terminal device 100 receives a beacon from the transmitter 21 when the terminal device 100 is included in the range where the electric wave of the transmitter 21 can reach.

  Although not shown, other drivers of other tractor heads also have a terminal device (not shown). Since the terminal device 100 held by the driver of the towing vehicle 20 and the terminal device held by another driver have the same configuration, the terminal devices are grouped together except for the case where they are particularly distinguished from each other. It is described as 100. In addition, a driver and other drivers are collectively referred to as a driver.

  The terminal device 100 corresponds to a terminal device such as a mobile phone, a smartphone, a tablet terminal, and a notebook PC (Personal Computer). The driver operates the terminal device 100 to input various information, and the terminal device 100 generates related information using the input information, and transmits the related information to the server 200.

  For example, the related information includes a chassis number, a head number, a shape, a state, time information, position information, loading presence / absence, and loading content. The chassis number is information for uniquely identifying the chassis, and the head number is information for uniquely identifying the tractor head. It is possible to identify which tractor head is pulling which chassis by the correspondence between the chassis number of the related information and the head number. The shape indicates the shape of the chassis. The shape of the chassis includes a flat body and a wing.

  The state indicates the state of the chassis, and includes, for example, “coupling”, “running”, “leaving”, “loading”, and “unloading”. “Coupled” indicates that the chassis and the tractor head have been coupled. “Running” indicates that the chassis is being driven by the tractor head. "Release" indicates that the connection between the chassis and the tractor head has been released. “Loading” indicates that a load has been loaded on the chassis. “Unloading” indicates that the load on the chassis has been unloaded.

  The time information indicates the time at which the input of the chassis number and the head number was received. The position information indicates the position information of the terminal device 100 when the input of the chassis number and the head number is received. The terminal device 100 receives radio waves from the artificial satellite 30 and calculates position information. The loading status is information indicating whether or not a load is loaded on the chassis identified by the chassis number. The loading content is information indicating the type of luggage loaded on the chassis.

  In the system according to the present embodiment, the operation phase using the terminal device 100 includes a detachment phase, a coupling phase, and a towing operation phase.

  The processing of the terminal device 100 in the “leaving phase” will be described. At the stage of the detachment phase, the driver of the tractor head 20a moves the towing vehicle 20 to the parking space of the chassis 20b. When the driver of the tractor head 20a completes the detachment operation between the tractor head 20a and the chassis 20b, the terminal device 100 is operated to input a chassis number, a head number, a shape, a state, loading / unloading, and loading content.

  FIG. 3 is a diagram illustrating an example of a display screen of the terminal device. As shown in FIG. 3, the display screen 60 has areas 61 to 65 and a change button 66. The area 61 is an area for inputting the head number of the tractor head 20a. The driver operates the terminal device 100 to input a head number in the area 61.

  The area 62 is an area for inputting a chassis number of the chassis 20b coupled to the tractor head 20a. When the chassis 20b is detached from the tractor head 20a, the beacon of the transmitter 21 installed on the chassis 20b reaches the terminal device 100. Therefore, the terminal device 100 specifies the chassis number included in the beacon, and input.

  The area 63 is an area for inputting the state of the chassis. For example, area 63 includes selection buttons 63a and 63b. When the selection button 63a is selected, it indicates that the tractor head 20a and the chassis 20b are connected. When the selection button 63b is selected, it indicates that the tractor head 20a and the chassis 20b are not connected. When one of the selection buttons 63a and 63b is selected, the other selection button is not selected. In the disengagement phase, when the connection between the tractor head 20a and the chassis 20b is released (disengaged), the driver operates the terminal device 100 to select the selection button 63b.

  The area 64 is an area for inputting whether or not a load is loaded on the chassis. The area 64 includes selection buttons 64a and 64b. When the selection button 64a is selected, it indicates that a load is loaded on the chassis 20b. When the selection button 64b is selected, it indicates that no luggage is loaded on the chassis 20b. When one of the selection buttons 64a and 64b is selected, the other selection button is not selected. Assuming that luggage is mounted on the chassis 20b, the driver operates the terminal device 100 to select the selection button 64a.

  The area 65 is an area for inputting the type of the loaded luggage when the luggage is loaded on the chassis 20b. When no load is loaded on the chassis 20b, the area 65 may be blank. In addition, the terminal device 100 may select a plurality of luggage type candidates and display the luggage type candidates in the area 65, and the driver may select any luggage type from the plurality of luggage type candidates. .

  Although not shown, it is assumed that the display screen 60 includes an area for inputting information on the shape of the chassis.

  The change button 66 is a button pressed by the driver when the input of the areas 61 to 65 of the display screen 60 is completed. Upon receiving the press of the change button 66, the terminal device 100 generates related information based on the information input to the areas 61 to 65, and transmits the related information to the server 200.

  For example, in the “leaving phase”, the related information transmitted to the server 200 includes the head number input in the area 61, the chassis number displayed in the area 62, the shape, the state “leaving”, the presence / absence of loading “Yes”, and the loading The content includes "grain", time information, and position information. The time information is information on the time when the change button 66 is pressed. The position information is the position information of the terminal device 100 when the change button 66 is pressed.

  Subsequently, the processing of the terminal device 100 in the “combination phase” will be described. At the stage of the coupling phase, when the driver of the tractor head operates the terminal device 100 to transmit a search request for the chassis 20b to be towed to the server 200, the search result is received from the server 200. The search request includes the chassis number of the chassis 20b to be pulled.

  When receiving the search result, the terminal device 100 displays the search result. FIG. 4 is a diagram illustrating an example of a search result display screen. As shown in FIG. 4, the display screen 70 of the search result shows that the chassis 20b to be towed is parked in the parking space 15 among the plurality of parking spaces 1 to 16 in the yard. I have. Although not shown, the chassis number of the chassis of the parking space 15 is also displayed.

  The driver refers to the display screen 70 and moves the tractor head to the parking space 15. After completing the work of connecting the tractor head and the chassis 20b, the driver operates the terminal device 100 to input a chassis number, a head number, a shape, a state, loading / unloading, and loading content.

  For example, the terminal device 100 displays the display screen 60 shown in FIG. The driver inputs the head number in the area 61. The terminal device 100 specifies the chassis number included in the beacon and inputs the chassis number to the area 62. Regarding the area 63, the driver selects the selection button 63a. When the driver leaves the regions 64 and 65 (regions of a shape not shown) as they are (may be changed in some cases) and presses the change button 66, the terminal device 100 generates related information, and The information is transmitted to the server 200.

  For example, in the “combination phase”, the related information transmitted to the server 200 includes the head number input to the area 61, the chassis number displayed in the area 62, the shape, the state “combination”, the presence / absence of loading “Yes”, and the loading The content includes "grain", time information, and position information. The time information is information on the time when the change button 66 is pressed. The position information is the position information of the terminal device 100 when the change button 66 is pressed.

  Subsequently, the processing of the terminal device 100 in the “towing operation phase” will be described. In the towing operation phase, the terminal device 100 periodically transmits related information to the server 200 while receiving a beacon from the transmitter 21 installed on the chassis 20b. For example, in the towing operation phase, the related information transmitted to the server 200 includes the chassis number and the head number input in the coupling phase. Further, immediately before transmitting the related information, the terminal device 100 acquires the time information and the position information, and registers the time information and the position information in the related information. The terminal device 100 sets the state of the related information to “running”, and sets the latest information regarding the presence / absence of loading and the loading content. As described below, the loading / unloading of the related information and the loading content are updated when loading and unloading are performed.

  The driver may perform “loading” and “unloading” in the towing operation phase. When the driver “loads” the luggage on the chassis 20 b, the driver operates the terminal device 100 to select the selection button 64 a in the area 64 of the display screen 60 and inputs the type of the luggage in the area 65. The driver presses the change button 66 when the change is completed. The terminal device 100 transmits the related information to the server 200 when receiving the input at the time of loading. The relevant information transmitted in the case of loading includes the chassis number and the head number input in the combining phase. The terminal device 100 registers the status “loading”, the loading status “presence”, and the loading content “input type” in the related information. Further, immediately before transmitting the related information, the terminal device 100 acquires the time information and the position information, and registers the time information and the position information in the related information.

  When the driver “unloads” the package from the chassis 20b, the driver operates the terminal device 100 to select the selection button 64b in the area 64 of the display screen 60, and sets the area 65 to blank. . The driver presses the change button 66 when the change is completed. The terminal device 100 transmits the related information to the server 200 when receiving the input at the time of unloading. The related information transmitted when the vehicle is unloaded includes the chassis number and the head number input in the combining phase. The terminal device 100 registers the status “unloading”, the loading status “none”, and the loading content “blank” in the related information. Further, immediately before transmitting the related information, the terminal device 100 acquires the time information and the position information, and registers the time information and the position information in the related information.

  Next, an example of a configuration of the terminal device 100 according to the present embodiment will be described. FIG. 5 is a functional block diagram illustrating the configuration of the terminal device according to the embodiment. As shown in FIG. 5, the terminal device 100 includes a communication unit 110, a beacon reception unit 120, a position measurement unit 130, a timer 140, an input unit 150, a display unit 160, a storage unit 170, and a control unit 180. Here, the process of the terminal device 100 related to the characteristic portion of the present embodiment will be described, and the description of the process regarding a general smartphone such as a telephone function will be omitted.

  The communication unit 110 is a processing unit that executes data communication with the server 200 via the network 50. A control unit 180 described later exchanges data with the server 200 via the communication unit 110. The communication unit 110 corresponds to a communication device.

  Beacon receiving section 120 is a receiver that receives a beacon from a transmitter (for example, transmitter 21) installed in the chassis. The beacon includes information of a chassis number that uniquely identifies the chassis. The beacon receiving unit 120 outputs information on the chassis number included in the beacon being received to the control unit 180.

  The position measuring unit 130 is a measuring device that measures the position information of the terminal device 100 using a GPS (Global Positioning System). For example, the position measurement unit 130 receives radio waves from a plurality of artificial satellites 30 and calculates position information based on a difference between a transmission time and a reception time. Position measuring section 130 outputs the position information to control section 180.

  The timer 140 is a timer that outputs current time information (information of date and time) to the control unit 180.

  The input unit 150 is an input device for the driver to input various information to the terminal device 100. For example, the input unit 150 corresponds to an input button, a touch panel, or the like. The driver operates the input unit 150 to input the information described in FIG.

  The display unit 160 is a display device that displays information output from the control unit 180. For example, the display unit 160 corresponds to a liquid crystal display, an organic display, a touch panel, or the like. The display unit 160 displays the display screen 60 shown in FIG. 3, the display screen 70 shown in FIG. 4, and the like.

  The storage unit 170 has related information 170a. The storage unit 170 corresponds to a storage device such as a semiconductor memory device such as a random access memory (RAM), a read only memory (ROM), and a flash memory.

  The related information 170a is information generated by the control unit 180 in the coupling phase, the towing operation phase, and the departure phase. FIG. 6 is a diagram illustrating an example of a data structure of the related information. As shown in FIG. 6, the related information 170a includes a chassis number, a head number, a shape, a state, a date and time, a position, loading / unloading, and loading content.

  The chassis number is information for uniquely identifying the chassis. The head number is information for uniquely identifying a tractor head coupled to the chassis. The shape indicates the shape of the chassis. The status indicates the status of the chassis. For example, one of “coupled”, “running”, “loading”, “unloading”, and “leaving” is set as the state. The date and time indicate the date and time (time information) when the related information 170a was generated. The position indicates the position information at the time when the related information 170a was generated. The loading status is information indicating whether or not a load is loaded on the chassis identified by the chassis number. The loading content is information indicating the type of luggage loaded on the chassis.

  Returning to the description of FIG. The control unit 180 has an acquisition unit 180a and a notification unit 180b. The control unit 180 can be realized by a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or the like. The control unit 180 can also be realized by hard wired logic such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

  The acquisition unit 180a is a processing unit that acquires inputs of various types of information for generating the related information 170a in each phase.

  An example of the processing of the acquisition unit 180a in the “combination phase” will be described. For example, the driver operates the input unit 150 to input the chassis number of the chassis to be searched. Upon obtaining the chassis number to be searched, the obtaining unit 180a transmits a search request including the obtained chassis number to the server 200. When the search request is transmitted to server 200, the search result is transmitted from server 200 to terminal device 100. Upon acquiring the search result, the acquisition unit 180a outputs a search result display screen to the display unit 160 and causes the display unit 160 to display the display screen. The display screen of the search result corresponds to the display screen 70 described with reference to FIG.

  The driver refers to the display screen 70 and moves the tractor head to the corresponding parking space (for example, the parking space 15). The driver completes the work of connecting the tractor head and the chassis 20b. When the driver operates the input unit 150 to make a display screen display request, the acquisition unit 180a displays the information on the display screen 60 shown in FIG. The obtaining unit 180a obtains information of the chassis number from the beacon receiving unit 120, and causes the area 62 of the display screen 60 to display the chassis number.

  The driver operates the input unit 150 to input the head number in the area 61. The driver operates the input unit 150 to select the selection button 63a in the area 63. When no luggage is loaded on the towing chassis, the driver operates the input unit 150 to select the selection button 64b in the area 64. When the luggage is loaded on the towing chassis, the driver operates the input unit 150 to select the selection button 64 a in the area 64 and inputs the loaded contents in the area 65. Information on the shape is master-managed in advance by being linked to the chassis number. The driver presses the change button 66 when the input on the display screen 60 is completed.

  When detecting that the change button 66 has been pressed, the acquisition unit 180a generates the related information 170a based on the information input to the areas 61 to 65. For example, the information of area 61 is set to the head number of related information 170a, and the information of area 62 is set to the chassis number of related information 170a. When the selection button 63a in the area 63 is selected, the acquisition unit 180a sets the state of the related information 170a to “combined”.

  When the selection button 64b of the area 64 is selected, the acquisition unit 180a sets the loading / unloading of the related information 170a to “none” and sets the loading content to blank. When the selection button 64a of the area 64 is selected, the acquisition unit 180a sets the presence / absence of loading of the related information 170a to “Yes” and sets the information of the area 64 to the loading content. Further, the acquiring unit 180a sets the shape information in the related information 170a.

  In addition, the acquisition unit 180a acquires the time information at the time when the change button 66 is pressed from the timer 140, and sets the time information of the related information 170a. The acquiring unit 180a acquires the position information at the time when the change button 66 is pressed from the position measuring unit 130, and sets the position information in the position of the related information 170a.

  Next, an example of the processing of the acquisition unit 180a in the “towing operation phase” will be described. For example, when the state of the related information 170a is set to “combined” and the distance between the position information obtained from the position measuring unit 130 and the position information of the related information 170a is equal to or greater than a threshold value, It is determined that the process has shifted to the “towing operation phase”.

  The acquisition unit 180a periodically executes the following processing when determining that the process has shifted to the “towing operation phase”. The obtaining unit 180a obtains information of the chassis number from the beacon receiving unit 120, and registers the obtained chassis number in the head number of the related information 170a. Further, the acquisition unit 180a updates the state of the related information 170a to “running”. The acquisition unit 180a acquires time information from the timer 140, and updates the date and time of the related information 170a with the acquired time information. The acquisition unit 180a acquires the position information from the position measurement unit 130, and updates the position of the related information 170a with the acquired position information.

  By the way, the driver may perform “loading” and “unloading” in the towing operation phase. When the driver “loads” the load on the chassis 20 b, the driver operates the input unit 150 to select the selection button 64 a in the area 64 of the display screen 60 and inputs the type of the load in the area 65. The driver presses the change button 66 when the loading is completed.

  When detecting that the change button 66 has been pressed, the acquisition unit 180a updates the related information 170a based on the information input to the areas 61 to 65. For example, the information of area 61 is set to the head number of related information 170a, and the information of area 62 is set to the chassis number of related information 170a.

  When loading is performed, the acquiring unit 180a sets the state of the related information 170a to “loading”. For example, in the “towing operation phase”, when the selection button of the area 64 is changed from the selection button 64b to the selection button 64a in the “towing operation phase”, the acquisition unit 180a determines that the operation is “loading”. The acquisition unit 180a sets the presence / absence of loading of the related information 170a to “Yes” and sets the information of the area 64 to the loading content.

  In addition, the acquisition unit 180a acquires the time information at the time when the change button 66 is pressed from the timer 140, and sets the time information of the related information 170a. The acquiring unit 180a acquires the position information at the time when the change button 66 is pressed from the position measuring unit 130, and sets the position information in the position of the related information 170a.

  When the driver “unloads” the package on the chassis 20 b, the driver operates the input unit 150 to select the selection button 64 b in the area 64 of the display screen 60 and deletes the information in the area 65. The driver presses the change button 66 when unloading is completed.

  When detecting that the change button 66 has been pressed, the acquisition unit 180a updates the related information 170a based on the information input to the areas 61 to 65. For example, the information of area 61 is set to the head number of related information 170a, and the information of area 62 is set to the chassis number of related information 170a.

  When the unloading is performed, the acquisition unit 180a sets the state of the related information 170a to “unloading”. For example, in the “towing operation phase”, when the selection button in the area 64 is changed from the selection button 64a to the selection button 64b in the “towing operation phase”, the acquisition unit 180a determines that the area is “unloading”. The acquisition unit 180a sets the loading / unloading of the related information 170a to “none” and sets the information in the area 64 to blank.

  In addition, the acquisition unit 180a acquires the time information at the time when the change button 66 is pressed from the timer 140, and sets the time information of the related information 170a. The acquiring unit 180a acquires the position information at the time when the change button 66 is pressed from the position measuring unit 130, and sets the position information in the position of the related information 170a.

  An example of the process of the acquisition unit 180a in the “leaving phase” will be described. When the driver operates the input unit 150 to request display of a display screen, the acquisition unit 180a displays information on the display screen 60 on the display unit 160. The acquisition unit 180a causes the area 61 to display the head number registered in the related information 170a. The obtaining unit 180a obtains information of the chassis number from the beacon receiving unit 120, and causes the area 62 of the display screen 60 to display the chassis number.

  The driver operates the input unit 150 to select the selection button 63b in the area 63. When no luggage is loaded on the towing chassis, the driver operates the input unit 150 to select the selection button 64b in the area 64. When the luggage is loaded on the towing chassis, the driver operates the input unit 150 to select the selection button 64 a in the area 64 and inputs the loaded contents in the area 65. The driver presses the change button 66 when the input on the display screen 60 is completed. When no luggage is mounted on the towing chassis, the driver operates the input unit 150 to select the selection button 64b in the area 64 and blanks the loaded contents in the area 65. The driver presses the change button 66 when the input on the display screen 60 is completed. The driver presses the change button 66 when the input on the display screen 60 is completed.

  When detecting that the change button 66 has been pressed, the acquisition unit 180a updates the related information 170a based on the information input to the areas 61 to 65. For example, the information of area 61 is set to the head number of related information 170a, and the information of area 62 is set to the chassis number of related information 170a. When the selection button in the area 63 is changed from the selection button 63a to the selection button 63b, the acquisition unit 180a sets the state of the related information 170a to “leaving”. Note that the acquisition unit 180a leaves the shape of the related information 170a as it is.

  In addition, the acquisition unit 180a acquires the time information at the time when the change button 66 is pressed from the timer 140, and sets the time information of the related information 170a. The acquiring unit 180a acquires the position information at the time when the change button 66 is pressed from the position measuring unit 130, and sets the position information in the position of the related information 170a. Here, in a case where the related information is periodically generated in each phase, the acquisition unit 180a periodically transmits the position information and the time information without changing the chassis number and the head number received in the combining process. Update. Then, the acquiring unit 180a generates the related information 170a from the chassis number and the head information, and the updated position information and time information.

  The notification unit 180b is a processing unit that notifies the server 200 of the related information 170a generated and updated by the acquisition unit 180a in each phase. The notification unit 180b corresponds to a first notification unit.

  In FIG. 3, the configuration of the terminal device 100 of the driver of the towing vehicle 20 has been described. However, the configuration of the terminal device of the driver of another towing vehicle has the same configuration as the terminal device 100 described in FIG. is there. That is, the driver of another towing vehicle that pulls the chassis 20b parked in a certain parking space by the towing vehicle 20 also operates the terminal device, and in each phase, the terminal device generates relevant information in each phase, and generates the relevant information. The server 200 is notified.

  Next, the description moves to a description of the server 200 shown in FIG. The server 200 receives the related information transmitted from the terminal device 100 and stores the related information in the storage unit. For example, when the server 200 receives the related information at the time of leaving, based on the chassis number and the position information included in the related information, the server 200 detects the parking space where the chassis is parked, and detects the detected parking space. It is stored in the storage unit in association with the chassis number. Further, when the server 200 receives the search request from the terminal device 100, the server 200 notifies the terminal device of the information on the parking space associated with the chassis number of the search request.

  FIG. 7 is a functional block diagram illustrating the configuration of the server according to the embodiment. As shown in FIG. 7, the server 200 includes a communication unit 210, an input unit 220, a display unit 230, a storage unit 240, and a control unit 250.

  The communication unit 210 is a processing unit that performs data communication with the terminal device 100 via the network 50. In the following description, the terminal device 100 of the driver of the towing vehicle 20 and the terminal devices of other drivers are collectively referred to as the terminal device 100. The control unit 250 described later receives the relevant information from the terminal device 100 via the communication unit 210. The communication unit 210 corresponds to a communication device.

  The input unit 220 is an input device for inputting various information to the server 200. For example, the input unit 220 corresponds to a keyboard, a mouse, a touch panel, and the like.

  The display unit 230 is a display device that displays information output from the control unit 250. For example, the display unit 230 corresponds to a liquid crystal display, a touch panel, or the like.

  The storage unit 240 has a traveling status table 240a, a chassis management table 240b, a parking lot table 240c, and a model table 240d. The storage unit 240 corresponds to a semiconductor memory device such as a RAM, a ROM, and a flash memory, and a storage device such as an HDD (Hard Disk Drive).

  The running status table 240a is a table for managing the running status of the chassis. FIG. 8 is a diagram illustrating an example of a data structure of the traveling situation table. As shown in FIG. 8, the traveling status table 240a associates a chassis number, a head number, a shape, a state, a date and time, a position, whether or not to load, and a load content. The description about the chassis number, the head number, the shape, the state, the date and time, the position, the presence / absence of loading, and the loading content is the same as that described in the data structure of the related information in FIG.

  The chassis management table 240b is a table that holds information on the parking position of the chassis. FIG. 9 is a diagram illustrating an example of the data structure of the chassis management table. As shown in FIG. 9, the chassis management table 240b associates a chassis number, a shape, a state, a last update date and time, a position, a yard number, and a parking space number.

  The description about the chassis number, shape, state, and position is the same as that described in the data structure of the related information in FIG. The last update date and time indicates the date and time (time information) when the record of the chassis management table 240b was last updated. The yard number is information for uniquely identifying the yard where the chassis is parked. The parking space number is information for identifying a parking space where the chassis is parked. The set of the yard number and the parking space number makes it possible to uniquely identify the parked parking space of the chassis.

  The parking lot table 240c is a table that holds various types of information regarding the chassis storage. FIG. 10 is a diagram illustrating an example of the data structure of the parking lot table. As shown in FIG. 10, the parking lot table 240c associates a yard number, a yard position, a parking space number, a parking space position, and a parking chassis number.

  The yard number is information for uniquely identifying a yard. The yard position is information indicating the position (area) of the corresponding yard. The parking space number is information for uniquely identifying the parking space. The parking space position is information indicating the position (area) of the parking space. The parking chassis number is information for uniquely identifying a chassis parked (located) in the corresponding parking space. When the vehicle is not parked in the parking space, the corresponding parking chassis number is blank.

  For example, referring to the parking lot table 240c in FIG. 10, the parking square number "1" of the yard number "Y001" indicates that the chassis of the parking chassis number "Sapporo 3457" is parked. The parking square number “3” of the yard number “Y001” indicates that the chassis is not parked.

  The model table 240d is a table that holds drawing information indicating the shape of each yard. The drawing information is plan view information, 3D model information, and the like. In this embodiment, a 3D model will be described as an example. FIG. 11 is a diagram illustrating an example of the data structure of the model table. As shown in FIG. 11, the model table 240d associates yard numbers with 3D model information.

  The yard number is information for uniquely identifying a yard. The 3D model information is information on the corresponding yard and parking space in the 3D model. For example, the 3D model information is information indicating the position and shape of the yard and the parking space shown in FIG. In the present embodiment, the case where the yard number is associated with the 3D model information has been described. However, the present invention is not limited to this, and the yard number may be associated with the 2D model information.

  Returning to the description of FIG. The control unit 250 has a receiving unit 250a, a generating unit 250b, a detecting unit 250c, and a notifying unit 250d. The control unit 250 can be realized by a CPU, an MPU, or the like. Further, the control unit 250 can also be realized by hard wired logic such as an ASIC or an FPGA.

  When receiving the related information from the terminal device 100, the receiving unit 250a registers the received related information in the traveling situation table 240a. When the state set in the related information is “leaving” or when the state set in the related information is “combined”, the receiving unit 250a outputs the related information to the generating unit 250b. In the following description, the related information whose state is “leaving” will be referred to as “leaving information” as appropriate. The related information whose state is “combined” is described as “combined information”. Further, when receiving the search request from the terminal device 100, the receiving unit 250a outputs the search request to the detecting unit 250c.

  When receiving the release information, the generation unit 250b generates the chassis management table 240b based on the release information and the parking lot table 240c. Further, when receiving the combination information, the generation unit 250b updates the chassis management table 240b based on the combination information and the parking lot table 240c.

  First, a description will be given of a process performed when the generation unit 250b receives “leave information”. If the release information is received, it means that the chassis has been parked in the parking space. The generation unit 250b compares the position information set in the withdrawal information with the yard position of the parking lot table 240c to identify the yard number at which the chassis has left (parked). Further, the generation unit 250b compares the position information set in the release information with the parking space position of the parking lot table 240c, and identifies the parking space number from which the chassis has left (parked). The generation unit 250b registers, in the parking lot table 240c, the chassis number set in the departure information as the parking chassis number corresponding to the pair of the specified yard number and the specified parking square number.

  Further, the generation unit 250b generates a record in which the chassis number, the shape, the last update date and time, the position, the yard number, and the parking space number are associated, and registers the record in the chassis management table 240b. The chassis number, shape last update date and time, and position of the registered record correspond to the chassis number, shape, date, and position included in the release information. The yard number and the parking space number are information specified as a result of comparing the position information set in the withdrawal information with the parking lot table 240c.

  Next, a description will be given of a process performed when the generation unit 250b receives the “joining information”. When the combination information is received, it means that the chassis parked in the parking space is towed by the tractor head (it is not parked in the parking space). The generation unit 250b compares the position information set in the combination information with the yard position of the parking lot table 240c, and specifies the yard number to which the chassis has been combined. Further, the generation unit 250b compares the position information set in the combination information with the parking cell position of the parking lot table 240c, and specifies the parking cell number to which the chassis is connected. The generation unit 250b sets the parking chassis number corresponding to the set of the specified yard number and the specified parking cell number to blank in the parking lot table 240c.

  In addition, the generation unit 250b specifies the record corresponding to the pair of the specified yard number and the specified parking cell number from the chassis management table 240b and deletes the specified record by the above processing.

  When receiving the search request, the detection unit 250c detects a parked parking space of the search target chassis set in the search request and generates information of the search result. The detecting unit 250c outputs information of the generated search result to the notifying unit 250d. For example, the detection unit 250c performs the following processing to generate information of a search result.

  The detecting unit 250c specifies the record of the parking chassis number that matches the chassis number of the search request by comparing the chassis number included in the search request with the parking chassis number in the parking lot table 240c. The detecting unit 250c detects a yard number and a parking space position included in the specified record. For example, if the chassis number included in the search request is “Sapporo 3457”, and referring to FIG. 10, the yard number is “Y001” and the parking space number is “1”.

  The detection unit 250c acquires 3D model information corresponding to the detected yard number from the model table 240d. The detecting unit 250c arranges a marker in a parking space corresponding to the detected parking space number among the parking spaces included in the acquired 3D model information. The detection unit 250c generates, as a search result, information in which a marker is arranged on a parking space of the 3D model. The detection unit 250c outputs information of the detected search result to the notification unit 250d.

  Further, the detection unit 250c may extract a record corresponding to the chassis number included in the detection request from the chassis management table 240b and include the record in the information of the detection result. Since the record of the chassis management table 240b includes information on the shape of the chassis as described with reference to FIG. 8, the driver who refers to such information can easily find the chassis to be combined.

  The notifying unit 250d is a processing unit that notifies the terminal device 100 of the information of the search result received from the detecting unit 250c and causes the terminal device 100 to display the information. The notification unit 250d corresponds to a second notification unit. For example, the display screen of the search result displayed on the terminal device 100 is as shown in FIG. The information of the search result generated by the detection unit 250c is not limited to FIG.

  FIG. 12 is a diagram showing an example of another display screen of the search result. For example, the parking space number where the chassis of the chassis number included in the search request is parked is “15”. It is also assumed that another chassis is parked at the parking space number “1, 2, 5, 9, 13”. On the display screen 71, markers are arranged at the parking square numbers “1, 2, 5, 9, 13, 15” of the yard model 71a, and the marker of the parking square number “15” is highlighted. In the list information 71b, information on the chassis parked at the parking space number "15" is highlighted.

  Next, an example of a processing procedure of the terminal device 100 and the server 200 of the system according to the present embodiment will be described. FIG. 13 is a flowchart illustrating a processing procedure of the terminal device at the time of connection. As shown in FIG. 13, the terminal device 100 generates a search request (Step S101), and transmits the search request to the server 200 (Step S102). The terminal device 100 receives and displays the information of the search result (step S103). In step S103, the driver refers to the displayed display screen and moves the tractor head to the corresponding parking space. After the movement of the tractor head is performed, the processing after step S104 is performed.

  The acquisition unit 180a of the terminal device 100 acquires a chassis number included in the beacon (Step S104). In step S104, the acquisition unit 180a stores the acquired chassis number in, for example, the storage unit 170 so that the chassis number can be referred to in a subsequent process. The acquisition unit 180a displays the chassis number included in the beacon being received (Step S105).

  The obtaining unit 180a receives an input of a head number (Step S106). The acquisition unit 180a receives the selection of the selection button 63a (combination) (Step S107). The acquisition unit 180a receives information on the presence or absence of the loading (Step S108).

  When the change button is pressed, the obtaining unit 180a obtains position information and time information (step S109), and generates related information at the time of combining (step S110). The notification unit 180b of the terminal device 100 notifies the server 200 of the related information at the time of the combination (Step S111).

  FIG. 14 is a flowchart illustrating a processing procedure of the terminal device at the time of leaving. As illustrated in FIG. 14, the acquisition unit 180a of the terminal device 100 acquires the head number and the chassis number of the related information 170a stored in the storage unit 170 (Step S201).

  The acquisition unit 180a causes the display unit 160 to display the head number and the chassis number (Step S202). The acquisition unit 180a receives selection of the selection button 63b (withdrawal) (Step S203). The acquisition unit 180a receives information on the presence or absence of loading (Step S204).

  The acquisition unit 180a acquires the position information and the time information when the change button 66 is pressed (Step S205), and generates the relevant information at the time of leaving (Step S206). The notification unit 180b of the terminal device 100 notifies the server 200 of the relevant information at the time of leaving (Step S207).

  FIG. 15 is a flowchart illustrating a processing procedure of the server when the relevant information at the time of leaving is received. As shown in FIG. 15, the receiving unit 250a of the server 200 receives the relevant information at the time of leaving (step S301). The receiving unit 250a registers the related information in the traveling situation table 240a (Step S302).

  The generation unit 250b compares the position of the related information with the parking lot table 240c, and specifies the yard number and the parking space number where the chassis is parked (Step S303). The generation unit 250b registers the chassis number of the related information in the parking lot table 240c in association with the yard number and the parking space number (Step S304).

  The generation unit 250b registers information in which the chassis number, the yard number, and the parking space number of the related information are associated with each other in the chassis management table 240b (Step S305).

  FIG. 16 is a flowchart illustrating a processing procedure of the server when related information at the time of combination is received. As shown in FIG. 16, the receiving unit 250a of the server 200 receives the related information at the time of combining (Step S401). The receiving unit 250a registers the related information in the traveling situation table 240a (Step S402).

  The generation unit 250b compares the position of the related information with the parking lot table 240c, and specifies the yard number and the parking space number where the chassis is parked (Step S403). The generation unit 250b deletes the chassis number of the related information associated with the yard number and the parking space number from the parking lot table 240c (Step S404).

  The generation unit 250b deletes information in which the chassis number, the yard number, and the parking space number of the related information are associated with each other from the chassis management table 240b (Step S405).

  FIG. 17 is a flowchart illustrating a processing procedure of the server when a search request is received. As illustrated in FIG. 17, the receiving unit 250a of the server 200 receives the search request (Step S501).

  The detecting unit 250c of the server 200 specifies the yard number and the parking space number where the chassis is parked based on the chassis number of the search request and the parking lot table 240c (Step S502).

  The detection unit 250c acquires 3D model information corresponding to the yard number from the model table 240d (Step S503). The detection unit 250c generates information of a search result by arranging a marker in a parking space corresponding to the specified parking space number among the parking spaces included in the 3D model information (step S504).

  The notifying unit 250d notifies the terminal device 100 of the information of the search result and displays the information (step S505).

  Next, effects of the system according to the present embodiment will be described. In the system according to the present embodiment, the server 200 receives the related information generated when the chassis is detached from the tractor head, compares the position of the related information with the parking lot table 240c, and determines whether the chassis is parked. The cell is specified, and the specified result is registered in the parking lot table 240c. Thereby, it is possible to manage the parking space where each chassis towed by the towing vehicle is parked.

  In the system of the present embodiment, when the server 200 receives the search request from the terminal device 100, the chassis corresponding to the search request is parked based on the chassis number included in the search request and the parking lot table 240c. The information of the detected parking space is detected, and the detection result is notified to the terminal device 100. Thereby, the position of the chassis parked in each parking space in the yard can be easily specified.

  In the system according to the present embodiment, the server 200 receives the related information generated when the chassis is coupled to the tractor head, compares the position of the related information with the parking lot table 240c, and determines whether the chassis is parked. A process of specifying a space and deleting information corresponding to the specified result from the parking lot table 240c (releasing the association between the parking space number and the chassis number) is performed. As a result, information on the chassis that is no longer present in the parking lot due to the towing vehicle can be removed from the parking lot table 240c.

  By the way, the process of the server 200 described above is an example, and another process may be executed. Hereinafter, other processes of the server 200 will be described. For example, the receiving unit 250a of the server 200 receives inspection information on the chassis from a maintenance manager terminal (not shown) or the like and registers the inspection information in the traveling status table 240a of the storage unit 240. The inspection information includes the chassis number of the chassis that has performed the inspection, and information on the last inspection date. The maintenance manager terminal is a terminal device used by a worker who performs inspection and maintenance of the chassis.

  The detection unit 250c of the server 200 may detect the chassis number of the chassis that has passed a predetermined period from the final inspection date with reference to the final inspection date registered in the traveling status table 240a. When displaying the display screen 71 of the detection result described with reference to FIG. 12, the detection unit 250c may highlight the chassis number of the chassis that has passed a predetermined period from the last inspection date in the list information 71b. Further, the detection unit 250c may display an alert for a chassis number of a chassis that has passed a predetermined period from the last inspection date. By executing such processing, it is possible to specify not only the parking space where the chassis to be searched is located, but also the position of the chassis to be checked.

  Next, an example of a hardware configuration of a computer that realizes the same functions as those of the terminal device 100 and the server 200 described in the embodiment will be described. FIG. 18 is a diagram illustrating an example of a hardware configuration of a computer that realizes the same function as the terminal device according to the embodiment.

  As shown in FIG. 18, the computer 400 includes a CPU 401 that executes various arithmetic processes, an input device 402 that receives input of data from a user, and a display 403. The computer 400 has a communication device 404 and an interface device 405. The interface device 405 is connected to a beacon receiver, a position measuring device, a timer, an acceleration sensor, and the like. The computer 400 includes a RAM 406 for temporarily storing various information, and a hard disk device 407. The devices 401 to 407 are connected to a bus 408.

  The hard disk device 407 has an acquisition program 407a and a notification program 407b. The CPU 401 reads the acquisition program 407 a and the notification program 407 b and expands them on the RAM 406.

  The acquisition program 407a functions as an acquisition process 406a. The notification program 407b functions as a notification process 406b. The processing of the acquisition process 406a corresponds to the processing of the acquisition unit 180a. The processing of the notification process 406b corresponds to the processing of the notification unit 180b.

  The programs 407a and 407b do not necessarily need to be stored in the hard disk device 407 from the beginning. For example, each program is stored in a “portable physical medium” such as a flexible disk (FD), a CD-ROM, a DVD disk, a magneto-optical disk, or an IC card inserted into the computer 400. Then, the computer 300 may read and execute each of the programs 407a and 407b.

  FIG. 19 is a diagram illustrating an example of a hardware configuration of a computer that realizes the same function as the server according to the embodiment.

  As shown in FIG. 19, the computer 500 includes a CPU 501 that executes various arithmetic processing, an input device 502 that receives input of data from a user, and a display 503. In addition, the computer 500 includes a reading device 504 that reads a program or the like from a storage medium, and an interface device 505 that exchanges data with an external device or the like via a wired or wireless network. The computer 500 includes a RAM 506 for temporarily storing various information, and a hard disk device 507. The devices 501 to 507 are connected to a bus 508.

  The hard disk drive 507 has a receiving program 507a, a generating program 507b, a detecting program 507c, and a notifying program 507d. The CPU 501 reads out the reception program 507a, the generation program 507b, the detection program 507c, and the notification program 507d and expands them in the RAM 406.

  The receiving program 507a functions as a receiving process 506a. The generation program 507b functions as a generation process 506b. The detection program 507c functions as a detection process 706c. The notification program 507d functions as a notification process 507d. The processing of the receiving process 506a corresponds to the processing of the receiving unit 250a. The processing of the generation process 406b corresponds to the processing of the generation unit 250b. The processing of the detection process 506c corresponds to the processing of the detection unit 250c. The processing of the notification process 206d corresponds to the processing of the notification unit 250d.

  Note that the programs 507a to 507d do not necessarily need to be stored in the hard disk device 507 from the beginning. For example, each program is stored in a “portable physical medium” such as a flexible disk (FD), a CD-ROM, a DVD disk, a magneto-optical disk, or an IC card inserted into the computer 500. Then, the computer 500 may read and execute each of the programs 507a to 507d.

  Regarding the embodiment including each of the above examples, the following supplementary notes are further disclosed.

(Supplementary Note 1) A towed vehicle management system including a terminal device and a server,
The terminal device,
An acquisition unit that is located near the towing vehicle and obtains position information of the terminal device at the time when the towed vehicle coupled to the towing vehicle has departed, and identification information for uniquely identifying the departed towed vehicle. ,
A first notifying unit that notifies the server of withdrawal information in which the identification information is associated with the position information,
The server is
When the release information is received, a partial area where the towed vehicle is located is detected from a plurality of partial areas based on the position information of the release information, and the detected partial area is associated with the identification information. A generation unit that generates towed vehicle management information;
When a search request including the identification information is received, based on the identification information included in the search request and the towed vehicle management information, a partial area associated with the identification information included in the search request A detection unit for detecting
And a second notification unit that notifies the detection result of the detection unit to the terminal device.

(Supplementary Note 2) The acquisition unit acquires the position information of the terminal device and the identification information at the time when the towed vehicle is coupled to the towed vehicle,
The first notification unit notifies the server of combined information in which the identification information is associated with the position information,
The generating unit, when receiving the combined information, detects a partial region where the towed vehicle is located from a plurality of partial regions based on the position information of the combined information, and is associated with the detected partial region. 2. The towed vehicle management system according to claim 1, wherein the identification information is released.

(Supplementary Note 3) The detection unit acquires model information including a plurality of partial areas, and, among a plurality of parking squares of the model information, includes a partial area associated with the identification information included in the search request. 3. The towed vehicle management system according to claim 1, wherein information in which a marker is arranged is set in the detection result.

(Supplementary Note 4) The position information of the terminal device at the time when the towed vehicle connected to the towed vehicle leaves the terminal device existing near the towed vehicle, and the identification information for uniquely identifying the towed vehicle that has left the towed vehicle. And get
The terminal device notifies the server of release information in which the identification information is associated with the position information,
The server, when receiving the departure information, detects a partial area where the towed vehicle is located from a plurality of partial areas based on the position information of the departure information,
The server generates towed vehicle management information in which the detected partial area is associated with the identification information,
The server, when receiving the search request including the identification information, associates the identification information included in the search request with the identification information included in the search request and the towed vehicle management information. Detected partial area,
The towed vehicle management method, wherein the server executes a process of notifying the terminal device of a detection result.

(Supplementary Note 5) The connection information in which the terminal device acquires the position information of the terminal device and the identification information at the time when the towed vehicle is coupled to the towed vehicle, and associates the identification information with the position information. Informing the server, the server, when receiving the binding information, based on the location information of the binding information, to detect the partial area where the towed vehicle is located from a plurality of partial areas, The towed vehicle management method according to claim 4, wherein the identification information associated with the detected partial area is released.

(Supplementary Note 6) The server acquires model information including a plurality of partial areas, and sets a marker in a partial area associated with the identification information included in the search request among a plurality of parking spaces of the model information. 6. The towed vehicle management method according to claim 4 or 5, wherein information in which is disposed is set as the detection result.

(Supplementary Note 7) The position information of the terminal device at the time when the towed vehicle coupled to the towed vehicle is separated from the terminal device existing near the towed vehicle, and identification information for uniquely identifying the towed vehicle that has been separated. Receiving the withdrawal information associated with
Based on the position information of the departure information, a partial area where the towed vehicle is located is detected from a plurality of partial areas,
Generate towed vehicle management information in which the detected partial area is associated with the identification information,
When a search request including the identification information is received, based on the identification information included in the search request and the towed vehicle management information, a partial area associated with the identification information included in the search request To detect
A towed vehicle management program for causing a computer to execute each process of notifying the terminal device of a detection result.

(Supplementary Note 8) In the receiving process, the position information of the terminal device at the time when the towed vehicle is combined with the towed vehicle and the combined information associated with the identification information are received from the terminal device and the detection is performed. The process, when receiving the combined information, detects a partial region where the towed vehicle is located from a plurality of partial regions based on the position information of the combined information, and associates the detected partial region with the detected partial region. 8. The towed vehicle management program according to claim 7, wherein the identification information is released.

(Supplementary Note 9) Information in which model information including a plurality of partial regions is obtained, and a marker is arranged in a region of the partial region associated with the identification information included in the search request among a plurality of parking spaces in the model information. The towed vehicle management program according to Supplementary note 7 or 8, further performing a process of setting the detected result as the detection result.

10, 20 Towing vehicle 10a, 20a Tractor head 10b, 20b Chassis 21 Transmitter 21a Solar cell 30 Artificial satellite 50 Network 100 Terminal device 110, 210 Communication unit 120 Beacon receiving unit 130 Position measuring unit 140 Timer 150, 220 Input unit 160, 230 display unit 170, 240 storage unit 170a related information 180, 250 control unit 180a acquisition unit 180b, 250d notification unit 200 server 240a traveling status table 240b chassis management table 240c parking lot table 240d model table 250a reception unit 250b generation unit 250c detection unit

Claims (5)

A towed vehicle management system having a terminal device and a server,
The terminal device,
An acquisition unit that is located near the towing vehicle and obtains position information of the terminal device at the time when the towed vehicle coupled to the towing vehicle has departed, and identification information for uniquely identifying the departed towed vehicle. ,
A first notifying unit that notifies the server of withdrawal information in which the identification information is associated with the position information,
The server is
When receiving the departure information, based on the position information of the departure information, a partial area where the towed vehicle is located is detected from a plurality of partial areas, and the detected partial area is associated with the identification information. A generation unit that generates towed vehicle management information;
When a search request including the identification information is received, based on the identification information included in the search request and the towed vehicle management information, a partial area associated with the identification information included in the search request A detection unit for detecting
And a second notification unit that notifies the detection result of the detection unit to the terminal device. The acquisition unit acquires the position information of the terminal device at the time when the towed vehicle is coupled to the towed vehicle, and the identification information,
The first notification unit notifies the server of combined information in which the identification information is associated with the position information,
The generating unit, when receiving the combined information, detects a partial region where the towed vehicle is located from a plurality of partial regions based on the position information of the combined information, and is associated with the detected partial region. The towed vehicle management system according to claim 1, wherein the identification information is released.   The detection unit obtains model information including a plurality of partial areas, and arranges a marker in an area of the partial area associated with the identification information included in the search request, among a plurality of parking squares of the model information. The towed vehicle management system according to claim 1 or 2, wherein information is set in the detection result. The terminal device present near the towing vehicle acquires the position information of the terminal device at the time when the towed vehicle coupled to the towing vehicle leaves, and identification information for uniquely identifying the towed vehicle that has left the vehicle. ,
The terminal device notifies the server of release information in which the identification information is associated with the position information,
The server, when receiving the departure information, detects a partial area where the towed vehicle is located from a plurality of partial areas based on the position information of the departure information,
The server generates towed vehicle management information in which the detected partial area is associated with the identification information,
The server, when receiving the search request including the identification information, associates the identification information included in the search request with the identification information included in the search request and the towed vehicle management information. Detected partial area,
The towed vehicle management method, wherein the server executes a process of notifying the terminal device of a detection result. The terminal device located near the towing vehicle, associating the position information of the terminal device at the time when the towed vehicle coupled to the towing vehicle has departed with the identification information for uniquely identifying the departed towing vehicle. Received the withdrawal information,
Based on the position information of the departure information, a partial area where the towed vehicle is located is detected from a plurality of partial areas,
Generate towed vehicle management information in which the detected partial area is associated with the identification information,
When a search request including the identification information is received, based on the identification information included in the search request and the towed vehicle management information, a partial area associated with the identification information included in the search request To detect
A towed vehicle management program for causing a computer to execute each process of notifying the terminal device of a detection result.

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