JP7172385B2 - TOWED VEHICLE MANAGEMENT SYSTEM, TOWED VEHICLE MANAGEMENT METHOD AND TOWED VEHICLE MANAGEMENT PROGRAM - Google Patents

Description

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

Towing vehicles are used to transport cargo. FIG. 20 is a diagram showing 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 (towed vehicle) 10b detachably coupled thereto. Cargo is loaded on the chassis 10b. A tractor head 10a of a towing vehicle 10 pulls a chassis 10b to transport a load.

Here, since the chassis 10b is detachable, there are cases where a plurality of shipping companies cooperate to transport the chassis 10b to the destination. For example, the chassis 10b is towed by the tractor head 10a to a chassis storage area (yard), separated from the tractor head 10a, and parked in 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, combines the found chassis 10b with another tractor head, and pulls it to the next point. do.

Incidentally, there is a conventional technology in which a commercial vehicle is equipped with a network-connectable operation recorder such as a digital tachograph, and the movement information of the commercial vehicle is collected and analyzed. By using this conventional technology, it is possible to identify the running condition of the towing vehicle 10 .

JP 2016-075991 A

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

In the prior art, a running recorder is attached to the tractor head 10a of the towing vehicle 10, and it is possible to identify the running condition of the tractor head 10a. However, since the chassis 10b is towed by a plurality of different tractor heads and parked in the chassis yard, it is difficult to manage the chassis position in the chassis yard.

In one aspect, the present invention aims to provide a towed vehicle management system, a towed vehicle management method, and a towed vehicle management program capable of managing the position of a towed vehicle in a towed vehicle storage area. .

In the first scheme, 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 at the time when the towed vehicle existing near the towed vehicle and coupled to the towed vehicle leaves, and the identification information for uniquely identifying the towed vehicle that has left. The first notification unit notifies the server of withdrawal information in which the identification information and the location information are associated with each other. When the departure information is received, the generator 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, and associates the detected partial area with the identification information. Generate tow vehicle management information. When receiving a search request including identification information, the detection unit detects a 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. do. The second notification unit notifies the terminal device of the detection result of the detection unit.

The position of the towed vehicle in the towed vehicle parking lot can be managed.

FIG. 1 is a diagram showing an example of a system according to this embodiment. FIG. 2 is a diagram showing an example of a yard according to this embodiment. FIG. 3 is a diagram showing an example of a display screen of the terminal device. FIG. 4 is a diagram showing an example of a search result display screen. FIG. 5 is a functional block diagram showing the configuration of the terminal device according to this embodiment. FIG. 6 is a diagram illustrating an example of the data structure of related information. FIG. 7 is a functional block diagram showing the configuration of the server according to this embodiment. FIG. 8 is a diagram showing an example of the data structure of the travel situation table. FIG. 9 is a diagram illustrating an example of the data structure of a chassis management table; FIG. 10 is a diagram showing an example of the data structure of the parking lot table. FIG. 11 is a diagram showing an example of the data structure of the model table. FIG. 12 is a diagram showing an example of another display screen of search results. FIG. 13 is a flow chart showing the processing procedure of the terminal device at the time of coupling. FIG. 14 is a flow chart showing the processing procedure of the terminal device when leaving. FIG. 15 is a flow chart showing the processing procedure of the server when the related information at the time of leaving is received. FIG. 16 is a flow chart showing the processing procedure of the server when the related information at the time of combining is received. FIG. 17 is a flow chart showing the processing procedure of the server when a search request is received. FIG. 18 is a diagram showing an example of the hardware configuration of a computer that implements the same functions as the terminal device according to this embodiment. FIG. 19 is a diagram showing an example of the hardware configuration of a computer that implements the same functions as the server according to this embodiment. FIG. 20 is a diagram showing 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 based on the drawings. In addition, this invention is not limited by this Example.

FIG. 1 is a diagram showing an example of a system according to this embodiment. In this system, a terminal device 100 and a server 200 are interconnected via a network 50 . In this embodiment, a chassis is used as an example of the towed vehicle, but the towed vehicle is not limited to this, and may be a container or the like.

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

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

Another driver who takes over the transportation of the chassis 20b detects the towed chassis 20b parked in one of the plurality of parking spaces 1 to 16 by operating the terminal device. Processing for detecting a target chassis (for example, chassis 20b) will be described later. When another driver finds the appropriate chassis 20b, the other tractor head and chassis 20b are coupled and towed. In the following description, reference numerals for the chassis and the tractor head are omitted when the description is not limited to a specific chassis or a specific tractor head.

A transmitter 21 that always emits a beacon is installed on the chassis 20b. The transmitter 21 has a solar cell 21a that converts sunlight into power, and receives power from this solar cell 21a. The beacon transmitted from the transmitter 21 contains information of "chassis number" that uniquely identifies the chassis 20b.

A driver of the towing vehicle 20 has a terminal device 100 . Terminal device 100 is connected to server 200 via network 50 . The terminal device 100 communicates with the artificial satellite 30 in order to calculate position information. Also, the terminal device 100 receives a beacon from the transmitter 21 when it is included in the radio wave range of the transmitter 21 .

Although not shown, other drivers of other tractor heads also have terminals (not shown). Since the terminal device 100 held by the driver of the towing vehicle 20 and the terminal device held by the other driver have the same configuration, unless otherwise distinguished, each terminal device is collectively referred to as a terminal device. It is written as 100. Also, 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 smart phone, 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 chassis number, head number, shape, state, time information, position information, presence/absence of loading, and loading contents. The chassis number is information that uniquely identifies the chassis, and the head number is information that uniquely identifies the tractor head. Which tractor head is pulling which chassis can be identified from the correspondence relationship between the chassis number of the related information and the head number. The shape indicates the shape of the chassis. Chassis shapes include flat bodies and wings.

The state indicates the state of the chassis, and includes, for example, "coupled", "running", "disengaged", "loaded", and "unloaded". "Coupled" indicates that the chassis and tractor head are coupled. "Running" indicates that the chassis is being towed by the tractor head. "Detached" indicates that the chassis is disconnected from the tractor head. "Loaded" indicates that the chassis is loaded. "Unloaded" indicates that the load on the chassis has been unloaded.

The time information indicates the time when the input of the chassis number and head number was accepted. The positional information indicates the positional information of the terminal device 100 at the time when the input of the chassis number and the head number is accepted. The terminal device 100 receives radio waves from the artificial satellite 30 and calculates position information. Loaded presence/absence is information indicating whether or not the chassis identified by the chassis number is loaded with cargo. The loading content is information indicating the type of cargo loaded on the chassis.

In the system according to the present embodiment, phases of operation using the terminal device 100 include a detachment phase, a coupling phase, and a traction operation phase.

The processing of the terminal device 100 in the "withdrawal phase" will be described. During the release phase, the driver of the tractor head 20a has moved the tow vehicle 20 into the parking bay of the chassis 20b. After the tractor head 20a and chassis 20b are separated from each other, the driver of the tractor head 20a operates the terminal device 100 to input the chassis number, head number, shape, state, presence or absence of loading, and loading contents.

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

Area 62 is for entering the chassis number of chassis 20b coupled to 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, so the terminal device 100 identifies the chassis number included in the beacon. input.

An area 63 is an area for inputting the state of the chassis. For example, area 63 includes selection buttons 63a and 63b. Selection of select button 63a indicates that tractor head 20a and chassis 20b are coupled. When select button 63b is selected, it indicates that tractor head 20a and chassis 20b are not coupled. When one of the selection buttons 63a and 63b is selected, the other selection button is unselected. In the detachment phase, when the tractor head 20a and the chassis 20b are disconnected (detached), the driver operates the terminal device 100 and selects the selection button 63b.

An area 64 is an area for inputting whether or not the chassis is loaded with cargo. Area 64 includes selection buttons 64a and 64b. When the selection button 64a is selected, it indicates that the chassis 20b is loaded with cargo. When the selection button 64b is selected, it indicates that the chassis 20b is unloaded. When one of the selection buttons 64a and 64b is selected, the other selection button is unselected. Assuming that luggage is mounted on the chassis 20b, the driver operates the terminal device 100 and selects the selection button 64a.

An area 65 is an area for inputting the type of loaded cargo when cargo is loaded on the chassis 20b. Area 65 may be blank if chassis 20b is unloaded. It should be noted that the terminal device 100 may make it possible to select a plurality of package type candidates and display them in the area 65, and the driver may select one package type from the plurality of package type candidates. .

Although illustration is omitted, 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 that the driver presses when the input in the areas 61 to 65 of the display screen 60 is completed. Upon receiving the pressing of change button 66 , terminal device 100 generates related information based on the information input to areas 61 to 65 and transmits the related information to server 200 .

For example, in the "removal phase", the relevant 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 "removed", the presence or absence of loading "present", and the Content "grain", time information, and location information are included. The time information is information on the time when the change button 66 was pressed. The location information is location information of the terminal device 100 at the time when the change button 66 is pressed.

Next, processing of the terminal device 100 in the "combining phase" will be described. At the stage of the coupling phase, the driver of the tractor head operates the terminal device 100 to send a search request for the chassis 20b to be towed to the server 200, and receives the search result from the server 200. FIG. The search request includes the chassis number of the chassis 20b to be towed.

Upon receiving the search results, the terminal device 100 displays the search results. FIG. 4 is a diagram showing an example of a search result display screen. As shown in FIG. 4, the search result display screen 70 shows that the chassis 20b to be towed is parked in the parking lot 15 among the plurality of parking lots 1 to 16 in the yard. there is Although not shown, the chassis number of the chassis of the parking bay 15 is also displayed.

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

For example, the terminal device 100 displays the display screen 60 shown in FIG. The driver enters the head number in area 61 . The terminal device 100 identifies the chassis number included in the beacon and inputs it in the area 62 . With respect to area 63, the driver selects select button 63a. When the driver presses the change button 66 while leaving the areas 64 and 65 (areas with shapes not shown) as they are (or may change them in some cases), the terminal device 100 generates related information, Send the information to the server 200 .

For example, in the "bonding phase", the relevant 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 "bonded", the presence or absence of loading "yes", the loading Content "grain", time information, and location information are included. The time information is information on the time when the change button 66 was pressed. The location information is location information of the terminal device 100 at the time when the change button 66 is pressed.

Next, 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, relevant information sent to server 200 includes the chassis number and head number entered in the binding phase. In addition, the terminal device 100 acquires the time information and the location information immediately before transmitting the related information, and registers them 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 contents of loading. As will be described below, the presence/absence of loading of related information and the contents of loading are updated when loading and unloading are performed.

The driver may "load" and "unload" in the towing operation phase. When the driver "loads" a load on the chassis 20b, the driver operates the terminal device 100 to select the selection button 64a in the area 64 of the display screen 60 and input the type of load in the area 65. FIG. The driver presses the change button 66 when the change is completed. The terminal device 100 transmits relevant information to the server 200, when the input which concerns is received at the time of loading. Relevant information sent when loaded includes the chassis number and head number entered during the binding phase. The terminal device 100 registers the state "loaded", the presence or absence of loading "yes", and the content of loading "input type" in the related information. In addition, the terminal device 100 acquires the time information and the location information immediately before transmitting the related information, and registers them in the related information.

When the driver "unloads" the cargo 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 set 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 such an input at the time of unloading. Relevant information sent when unloaded includes the chassis number and head number entered during the binding phase. The terminal device 100 registers the state "unloaded", the presence/absence of loading "no", and the content of loading "blank" in the related information. In addition, the terminal device 100 acquires the time information and the location information immediately before transmitting the related information, and registers them in the related information.

Next, an example of the configuration of the terminal device 100 according to this embodiment will be described. FIG. 5 is a functional block diagram showing the configuration of the terminal device according to this embodiment. As shown in FIG. 5 , this terminal device 100 has a communication section 110 , a beacon reception section 120 , a position measurement section 130 , a timer 140 , an input section 150 , a display section 160 , a storage section 170 and a control section 180 . Here, the processing of the terminal device 100, which is related to the features of the present embodiment, will be described, and the description of processing related to general smart phones such as telephone functions will be omitted.

Communication unit 110 is a processing unit that performs data communication with server 200 via network 50 . A control unit 180 , which will be described later, exchanges data with the server 200 via the communication unit 110 . The communication unit 110 corresponds to a communication device.

The beacon receiver 120 is a receiver that receives a beacon from a transmitter (for example, the transmitter 21) installed on the chassis. The beacon contains chassis number information 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 .

Position measurement section 130 is a measurement device that measures position information of terminal device 100 using GPS (Global Positioning System). For example, the position measurement unit 130 receives radio waves from a plurality of satellites 30 and calculates position information based on the difference between the transmission time and the 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 (date and time information) 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, 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 with reference to FIG.

The display unit 160 is a display device that displays information output from the control unit 180 . For example, 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 RAM (Random Access Memory), ROM (Read Only Memory), and flash memory.

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

A chassis number is information that uniquely identifies a chassis. A head number is information that uniquely identifies a tractor head coupled to a chassis. The shape indicates the shape of the chassis. The state indicates the state of the chassis. For example, the state is set to one of "coupled", "travel", "loaded", "unloaded", and "disengaged". The date and time indicates the date and time (time information) when the related information 170a was generated. The position indicates position information at the time when the related information 170a was generated. Loaded presence/absence is information indicating whether or not the chassis identified by the chassis number is loaded with cargo. The loading content is information indicating the type of cargo 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 hardwired logic such as ASIC (Application Specific Integrated Circuit) and FPGA (Field Programmable Gate Array).

The acquisition unit 180a is a processing unit that acquires input of various 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. After 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 the server 200 , the search result is transmitted from the server 200 to the terminal device 100 . Upon obtaining the search results, the obtaining unit 180a outputs a display screen of the search results to the display unit 160 for display. The search result display screen 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 appropriate parking bay (for example, parking bay 15). The driver finishes connecting the tractor head and the chassis 20b. When the driver operates the input unit 150 to request display of the display screen, the acquisition unit 180a displays the information of the display screen 60 shown in FIG. The acquisition unit 180 a acquires chassis number information from the beacon reception unit 120 and displays the chassis number in the area 62 of the display screen 60 .

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. FIG. The driver operates the input unit 150 to select the selection button 64b in the area 64 when no load is loaded on the chassis to be towed. When the chassis to be towed is loaded with cargo, the driver operates the input unit 150 to select the selection button 64a in the area 64 and input the load content in the area 65 . In addition, the information on the shape is linked to the chassis number in advance and master-managed. The driver presses the change button 66 when the input on the display screen 60 is completed.

When the acquisition unit 180a detects that the change button 66 has been pressed, the acquisition unit 180a generates the related information 170a based on the information entered in the areas 61-65. For example, the information in 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 of the area 63 is selected, the obtaining 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 presence/absence of stacking of the related information 170a to "no" and blanks the contents of stacking. When the selection button 64a in the area 64 is selected, the acquisition unit 180a sets the presence/absence of stacking in the related information 170a to "yes" and sets the information in the area 64 as the loading content. In addition, the acquisition unit 180a sets the shape information in the related information 170a.

Further, 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 date and time of the related information 170a. The acquisition unit 180a acquires the position information at the time when the change button 66 is pressed from the position measurement unit 130, and sets it to 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, after the status of related information 170a has been set to “coupled”, acquisition unit 180a determines if the distance between the location information acquired from location measurement unit 130 and the location information of related information 170a becomes equal to or greater than a threshold. , it is determined that the transition to the "towing operation phase" has occurred.

When the acquisition unit 180a determines that the transition to the "towing operation phase" has occurred, the acquisition unit 180a periodically performs the following processing. The acquisition unit 180a acquires the chassis number information from the beacon reception unit 120, and registers the acquired chassis number as the head number of the related information 170a. In addition, 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" a load on the chassis 20b, the driver operates the input unit 150 to select the selection button 64a in the area 64 of the display screen 60 and input the type of load in the area 65. FIG. The driver presses change button 66 when loading is completed.

When the acquisition unit 180a detects that the change button 66 has been pressed, the acquisition unit 180a updates the related information 170a based on the information entered in the areas 61-65. For example, the information in 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 acquisition unit 180a sets the state of the related information 170a to "loading". For example, the acquisition unit 180a determines that it is "loading" when the selection button in the area 64 is changed from the selection button 64b to the selection button 64a in the "towing operation phase". The acquisition unit 180a sets the presence/absence of stacking in the related information 170a to "yes", and sets the information in the area 64 as the content of stacking.

Further, 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 date and time of the related information 170a. The acquisition unit 180a acquires the position information at the time when the change button 66 is pressed from the position measurement unit 130, and sets it to the position of the related information 170a.

When the driver "unloads" the cargo from the chassis 20b, the driver operates the input unit 150 to select the selection button 64b in the area 64 of the display screen 60 and delete the information in the area 65. FIG. The driver presses the change button 66 when unloading is completed.

When the acquisition unit 180a detects that the change button 66 has been pressed, the acquisition unit 180a updates the related information 170a based on the information entered in the areas 61-65. For example, the information in 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 unloading is performed, the acquisition unit 180a sets the state of the related information 170a to "unloaded". For example, the acquisition unit 180a determines that it is "unloading" 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 sets the presence/absence of loading in the related information 170a to "no" and sets the information in the area 64 to blank.

Further, 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 date and time of the related information 170a. The acquisition unit 180a acquires the position information at the time when the change button 66 is pressed from the position measurement unit 130, and sets it to the position of the related information 170a.

An example of the processing of the acquisition unit 180a in the "withdrawal phase" will be described. When the driver operates the input unit 150 to request display of the display screen, the acquisition unit 180 a displays the 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 acquisition unit 180 a acquires chassis number information from the beacon reception unit 120 and displays the chassis number in the area 62 of the display screen 60 .

The driver operates the input unit 150 to select the selection button 63b in the area 63. FIG. The driver operates the input unit 150 to select the selection button 64b in the area 64 when no load is loaded on the chassis to be towed. When the chassis to be towed is loaded with cargo, the driver operates the input unit 150 to select the selection button 64a in the area 64 and input the load content in the area 65 . The driver presses the change button 66 when the input on the display screen 60 is completed. When the chassis to be towed is not loaded with cargo, the driver operates the input unit 150 to select the selection button 64b in the area 64 and leave the loading content in the area 65 blank. 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 the acquisition unit 180a detects that the change button 66 has been pressed, the acquisition unit 180a updates the related information 170a based on the information entered in the areas 61-65. For example, the information in 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 acquiring unit 180a sets the state of the related information 170a to "leave". Note that the acquisition unit 180a leaves the shape of the related information 170a as it is.

Further, 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 date and time of the related information 170a. The acquisition unit 180a acquires the position information at the time when the change button 66 is pressed from the position measurement unit 130, and sets it to the position of the related information 170a. Here, when the related information is generated periodically in each phase, the acquiring unit 180a keeps the chassis number and the head number accepted in the coupling process as they are, and periodically acquires the position information and the time information. updated accordingly. Acquisition unit 180a then generates related information 170a from the chassis number and 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 the first notification unit.

Although the configuration of the terminal device 100 possessed by the driver of the towing vehicle 20 has been described in FIG. be. That is, the driver of another towed vehicle that tows the chassis 20b parked in a certain parking space by the towed vehicle 20 also operates the terminal device, and the terminal device generates related information in each phase, and transmits the related information. The server 200 is notified.

Next, the description of the server 200 shown in FIG. 1 will be described. The server 200 receives the related information transmitted from the terminal device 100 and stores it in the storage unit. For example, when the server 200 receives related information at the time of leaving, based on the chassis number and position information included in this related information, the server 200 detects the parking space where the chassis is parked, and detects the detected parking space. stored in the storage unit in association with the chassis number. Further, when the server 200 receives a search request from the terminal device 100, the server 200 notifies the terminal device of the parking lot information associated with the chassis number of the search request.

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

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 the other drivers are collectively referred to as the terminal device 100 . The control unit 250 , which will be described later, receives related 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 kinds of information to the server 200 . For example, input unit 220 corresponds to a keyboard, mouse, touch panel, and the like.

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

The storage unit 240 has a running situation table 240a, a chassis management table 240b, a parking lot table 240c, and a model table 240d. The storage unit 240 corresponds to semiconductor memory devices such as RAM, ROM, and flash memory, and storage devices such as HDDs (Hard Disk Drives).

The running status table 240a is a table for managing the running status of the chassis. FIG. 8 is a diagram showing an example of the data structure of the travel situation table. As shown in FIG. 8, the running status table 240a associates chassis number, head number, shape, state, date and time, position, presence/absence of loading, and loading contents. The chassis number, head number, shape, state, date and time, position, presence/absence of loading, and loading contents are the same as those described in the data structure of related information in FIG.

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

Descriptions of chassis numbers, shapes, states, and positions are the same as those described in the data structure of related information in FIG. The date and time of last update indicates the date and time (time information) when the record of the chassis management table 240b was last updated. The yard number is information that uniquely identifies the yard where the chassis is parked. The parking lot number is information for identifying the parking lot in which the chassis is parked. A set of a yard number and a parking lot number can uniquely identify the parking lot in which the chassis is parked.

The parking lot table 240c is a table that holds various types of information about chassis storage areas. FIG. 10 is a diagram showing an example of the data structure of the parking lot table. As shown in FIG. 10, the parking lot table 240c associates yard numbers, yard positions, parking bay numbers, parking bay positions, and parking chassis numbers.

A yard number is information that uniquely identifies a yard. The yard position is information indicating the position (area) of the corresponding yard. The parking lot number is information that uniquely identifies the parking lot. The parking bay position is information indicating the position (area) of the parking bay. The parking chassis number is information that uniquely identifies the chassis parked (located) in the corresponding parking space. If the vehicle is not parked in a parking space, the corresponding parking chassis number is blank.

For example, referring to the parking lot table 240c in FIG. 10, it is shown that the chassis with the parking chassis number "Sapporo 3457" is parked in the parking lot number "1" of the yard number "Y001". Further, it is indicated that the chassis is not parked in the parking lot number "3" of the yard number "Y001".

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

A yard number is information that uniquely identifies a yard. The 3D model information is information of a 3D model of the corresponding yard and parking lot. For example, the 3D model information is information indicating the positions and shapes of the yards and parking spaces shown in FIG. In this embodiment, the case of associating the yard number with the 3D model information has been described, but the present invention is not limited to this, and may be associated with the 2D model information.

Returning to the description of FIG. The control unit 250 has a reception unit 250a, a generation unit 250b, a detection unit 250c, and a notification unit 250d. The control unit 250 can be implemented by a CPU, MPU, or the like. Also, the control unit 250 can be realized by hardwired logic such as ASIC and FPGA.

When receiving 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 "separated" or when the state set in the related information is "connected", the receiving unit 250a outputs the related information to the generating unit 250b. In the following description, related information whose status is "leaving" will be referred to as "leaving information" as appropriate. Related information whose state is "combined" is referred to as "combined information". Further, when receiving a search request from the terminal device 100, the receiving unit 250a outputs the search request to the detecting unit 250c.

When the leaving information is received, the creating unit 250b creates the chassis management table 240b based on the leaving information and the parking lot table 240c. Further, upon receiving the combined information, the generator 250b updates the chassis management table 240b based on the combined information and the parking lot table 240c.

First, the processing when the generation unit 250b receives the “withdrawal information” will be described. If the leaving information is received, it means that the chassis is parked in the parking space. The generating unit 250b compares the position information set in the leaving information with the yard position in the parking lot table 240c to identify the (parking) yard number where the chassis left. In addition, the generation unit 250b compares the position information set in the leaving information with the parking bay position in the parking lot table 240c to specify the parking bay number from which the chassis left (parked). The generation unit 250b registers the chassis number set in the leaving information as the parking chassis number corresponding to the set of the identified yard number and the identified parking bay number in the parking lot table 240c.

The generation unit 250b also generates a record in which the chassis number, shape, date and time of last update, position, yard number, and parking lot number are associated with each other, 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 time, and position included in the departure information. The yard number and parking lot number are information specified as a result of comparing the position information set in the leaving information and the parking lot table 240c.

Next, a process when the generation unit 250b receives "combination information" will be described. When the combined information is received, it means that the chassis parked in the parking bay will be towed by the tractor head (the chassis will not be parked in the parking bay). The generating unit 250b compares the position information set in the combined information with the yard position in the parking lot table 240c to identify the yard number where the chassis is combined. In addition, the generation unit 250b compares the position information set in the combination information with the parking lot positions in the parking lot table 240c to identify the parking lot number where the chassis is combined. The generation unit 250b sets the parking chassis number corresponding to the set of the identified yard number and the identified parking bay number to blank in the parking lot table 240c.

Further, the generation unit 250b identifies, from the chassis management table 240b, a record corresponding to a set of the identified yard number and the identified parking lot number, and deletes the identified record.

Upon receiving a search request, the detection unit 250c detects the parking lot in which the search target chassis set in the search request is parked, and generates search result information. The detection unit 250c outputs the generated search result information to the notification unit 250d. For example, the detection unit 250c performs the following processing to generate search result information.

The detection unit 250c identifies 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 of the parking lot table 240c. The detection unit 250c detects the yard number and parking space position included in the specified record. For example, when the chassis number included in the search request is "Sapporo 3457", referring to FIG. 10, the yard number is "Y001" and the parking lot number is "1".

The detection unit 250c acquires 3D model information corresponding to the detected yard number from the model table 240d. The detection unit 250c places a marker in the parking bay corresponding to the detected parking bay number among the parking bays included in the acquired 3D model information. The detection unit 250c generates, as a search result, information in which markers are placed on parking spaces of the 3D model. The detection unit 250c outputs the detected search result information 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 it in the detection result information. Since the records of the chassis management table 240b contain information on the shape of the chassis, as described with reference to FIG. 8, the driver who refers to such information can easily search for the chassis to be combined.

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

FIG. 12 is a diagram showing an example of another display screen of search results. For example, assume that the parking lot number in which the chassis with the chassis number included in the search request is parked is "15". It is also assumed that other chassis are parked in the parking lot numbers "1, 2, 5, 9, 13". On the display screen 71, markers are arranged at the parking bay numbers "1, 2, 5, 9, 13, 15" of the yard model 71a, and the marker with the parking bay number "15" is highlighted. In the list information 71b, information regarding the chassis parked in the parking lot number "15" is highlighted.

Next, an example of the processing procedure of the terminal device 100 and the server 200 of the system according to this embodiment will be described. FIG. 13 is a flow chart showing the processing procedure of the terminal device at the time of coupling. 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 tractor head is moved, the processing from step S104 is performed.

The acquisition unit 180a of the terminal device 100 acquires the 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 it can be referred to in subsequent processing. The acquisition unit 180a displays the chassis number included in the beacon being received (step S105).

The acquisition unit 180a receives the input of the head number (step S106). The acquisition unit 180a receives the selection of the selection button 63a (join) (step S107). Acquisition unit 180a receives information on the presence or absence of loading (step S108).

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

FIG. 14 is a flow chart showing the processing procedure of the terminal device when leaving. As shown in FIG. 14, the acquisition unit 180a of the terminal device 100 acquires the head number and 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). Acquisition unit 180a receives information on the presence or absence of loading (step S204).

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

FIG. 15 is a flow chart showing the processing procedure of the server when the related information at the time of leaving is received. As shown in FIG. 15, the receiving unit 250a of the server 200 receives related 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 relevant information with the parking lot table 240c, and identifies the yard number and parking lot 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 lot number (Step S304).

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

FIG. 16 is a flow chart showing the processing procedure of the server when the related information at the time of combining is received. As shown in FIG. 16, the receiving unit 250a of the server 200 receives related information at the time of combining (step S401). The receiving unit 250a registers the relevant 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 identifies the yard number and parking lot 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 bay number from the parking lot table 240c (step S404).

The generator 250b deletes the information associated with the chassis number, yard number, and parking lot number of the related information from the chassis management table 240b (step S405).

FIG. 17 is a flow chart showing the processing procedure of the server when a search request is received. As shown in FIG. 17, the receiving unit 250a of the server 200 receives a search request (step S501).

The detection unit 250c of the server 200 identifies the yard number and parking lot 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 the 3D model information corresponding to the yard number from the model table 240d (step S503). The detection unit 250c generates search result information by arranging a marker in a parking space corresponding to the identified parking space number among the parking spaces included in the 3D model information (step S504).

The notification unit 250d notifies the terminal device 100 of the search result information and causes it to be displayed (step S505).

Next, the effects of the system according to this embodiment will be described. In the system of this embodiment, the server 200 receives the relevant information generated when the chassis is separated from the tractor head, compares the position of the relevant information with the parking lot table 240c, and determines whether the chassis is parked. A square is specified, and the specified result is registered in the parking lot table 240c. Thereby, it is possible to manage the parking lot in which each chassis towed by the towing vehicle is parked.

In the system of this embodiment, when the server 200 receives a 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 parking lot detected is detected, and the terminal device 100 is notified of the detection result. This makes it possible to easily identify the position of the chassis parked in each parking space in the yard.

In the system of this embodiment, the server 200 receives the relevant information generated when the chassis is coupled to the tractor head, compares the position of the relevant information with the parking lot table 240c, and determines the parking location where the chassis is parked. A square is specified, and information corresponding to the specified result is deleted from the parking lot table 240c (releasing the association between the parking lot number and the chassis number). As a result, the information of the chassis that has been towed by the towing vehicle and no longer exists in the parking lot can be removed from the parking lot table 240c.

By the way, the processing of the server 200 described above is an example, and other processing may be executed. Other processing of the server 200 will be described below. For example, the receiving unit 250a of the server 200 receives inspection information regarding the chassis from a maintenance manager terminal (not shown) or the like, and registers the information in the running situation table 240a of the storage unit 240. FIG. The inspection information includes the chassis number of the chassis inspected and information on the last inspection date. The maintenance manager terminal is a terminal device used by a worker who inspects and maintains the chassis.

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

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

As shown in FIG. 18, a computer 400 has a CPU 401 that executes various arithmetic processes, an input device 402 that receives data input from a user, and a display 403 . The computer 400 also 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 has a RAM 406 that temporarily stores various information, and a hard disk device 407 . Each device 401 - 407 is then connected to a bus 408 .

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

Acquisition program 407a functions as acquisition process 406a. Notification program 407b functions as 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.

Note that the programs 407a and 407b do not necessarily have 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), CD-ROM, DVD disk, magneto-optical disk, IC card, etc. inserted into the computer 400 . Then, the computer 300 may read and execute the programs 407a and 407b.

FIG. 19 is a diagram showing an example of the hardware configuration of a computer that implements the same functions as the server according to this embodiment.

As shown in FIG. 19, a computer 500 has a CPU 501 that executes various arithmetic processes, an input device 502 that receives data input from a user, and a display 503 . The computer 500 also has a reading device 504 that reads programs and 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 has a RAM 506 that temporarily stores various information and a hard disk device 507 . Each device 501 - 507 is then connected to a bus 508 .

The hard disk device 507 has a reception program 507a, a generation program 507b, a detection program 507c, and a notification 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 develops them in the RAM 406. FIG.

The receiving program 507a functions as a receiving process 506a. Generation program 507b functions as generation process 506b. Detection program 507c functions as detection process 706c. The notification program 507d functions as a notification process 507d. The processing of the reception process 506a corresponds to the processing of the reception 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 have 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), CD-ROM, DVD disk, magneto-optical disk, IC card, etc. inserted into the computer 500 . Then, the computer 500 may read and execute each of the programs 507a-507d.

The following additional remarks are disclosed regarding the embodiments including the above examples.

(Appendix 1) A towed vehicle management system having a terminal device and a server,
The terminal device
an acquisition unit that is present in the vicinity of the towing vehicle and acquires position information of the terminal device at the time when the towed vehicle coupled to the towed vehicle separates and identification information that uniquely identifies the separated towed vehicle; ,
a first notification unit that notifies the server of withdrawal information in which the identification information and the location information are associated;
The server is
When the departure information is received, 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, a 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. a detection unit that detects
A towed vehicle management system, comprising: a second notification unit that notifies the terminal device of a detection result of the detection unit.

(Appendix 2) The acquisition unit acquires the position information and the identification information of the terminal device at the time when the towed vehicle is coupled to the towing vehicle,
The first notification unit notifies the server of combined information in which the identification information and the position information are associated,
When receiving the combined information, the generation unit detects a partial area where the towed vehicle is located from a plurality of partial areas based on the position information of the combined information, and associates the partial area with the detected partial area. The towed vehicle management system according to appendix 1, wherein the towed vehicle management system cancels the identification information.

(Appendix 3) The detection unit acquires model information including a plurality of partial areas, and selects a partial area associated with the identification information included in the search request from among the plurality of parking spaces of the model information. 3. The towed vehicle management system according to appendix 1 or 2, wherein information obtained by arranging a marker is set in the detection result.

(Appendix 4) Location information of a terminal device existing in the vicinity of the towing vehicle at the time when the towed vehicle that was coupled to the towing vehicle has left, and identification information that uniquely identifies the towed vehicle that has left. and get
The terminal device notifies the server of withdrawal information in which the identification information and the location information are associated with each other;
when receiving the departure information, the server 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 that associates the detected partial area with the identification information,
When the server receives a search request including the identification information, the server associates the identification information included in the search request with the identification information included in the search request based on the towed vehicle management information and the identification information included in the search request. , and detect the subregion
The towed vehicle management method, wherein the server notifies the terminal device of a detection result.

(Appendix 5) The terminal device acquires the position information of the terminal device at the time when the towed vehicle is coupled to the towing vehicle and the identification information, and combined information in which the identification information and the position information are associated. is notified to the server, and when the server receives the combined information, the server detects the partial area where the towed vehicle is located from a plurality of partial areas based on the position information of the combined information, The towed vehicle management method according to appendix 4, wherein the identification information associated with the detected partial area is released.

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

(Appendix 7) Location information of the terminal device at the time when the towed vehicle connected to the towed vehicle is separated from the terminal device existing in the vicinity of the towed vehicle, and identification information that uniquely identifies the separated towed vehicle. receive the withdrawal information associated with
detecting a partial area where the towed vehicle is located from a plurality of partial areas based on the position information of the departure information;
generating towed vehicle management information that associates the detected partial area with the identification information;
When a search request including the identification information is received, a 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. to detect
A towed vehicle management program characterized by causing a computer to execute each process of notifying the terminal device of a detection result.

(Supplementary Note 8) The receiving process receives from the terminal device position information of the terminal device at the time when the towed vehicle is coupled to the towing vehicle and combined information associated with the identification information, and detects the The process detects, from a plurality of partial areas, a partial area where the towed vehicle is located based on the position information of the combined information when the combined information is received, and detects the partial area associated with the detected partial area. A towed vehicle management program according to appendix 7, characterized in that the identification information is released.

(Appendix 9) Information obtained by acquiring model information including a plurality of partial areas, and arranging a marker in the area of the partial area associated with the identification information included in the search request, among the plurality of parking spaces of the model information. to the detection result.

Reference Signs List 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 reception unit 130 position measurement 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 running situation 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 present in the vicinity of the towing vehicle and acquires position information of the terminal device at the time when the towed vehicle coupled to the towed vehicle separates and identification information that uniquely identifies the separated towed vehicle; ,
a first notification unit for notifying the server of detachment information in which the identification information, the position information , and information indicating that the towed vehicle is detached, either coupled or detached, in association with each other; have
The server is
When the departure information is received, 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 and sets the state of the towed vehicle located in the detected partial area to detached with respect to the towed vehicle management information ;
When a search request including the identification information is received, a 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. a detection unit that detects
A towed vehicle management system, comprising: a second notification unit that notifies the terminal device of the detection result of the detection unit and the states of the plurality of towed vehicles located in the plurality of partial areas . The acquisition unit acquires the position information and the identification information of the terminal device at the time when the towed vehicle is coupled to the towing vehicle,
The first notification unit notifies the server of combined information in which the identification information and the position information are associated,
When receiving the combined information, the generation unit detects a partial area where the towed vehicle is located from a plurality of partial areas based on the position information of the combined information, and associates the partial area with the detected partial area. 2. The towed vehicle management system according to claim 1, wherein the towed vehicle management system cancels the identification information. The detection unit acquires model information including a plurality of partial areas, and places a marker in a partial area associated with the identification information included in the search request, among the plurality of parking spaces of the model information. 3. The towed vehicle management system according to claim 1, wherein information is set in said detection result. A terminal device existing in the vicinity of the towed vehicle acquires position information of the terminal device at the time when the towed vehicle coupled to the towed vehicle separates, and identification information that uniquely identifies the separated towed vehicle. ,
The terminal device notifies the server of detachment information in which the identification information, the position information, and the information indicating that the state of the towed vehicle is detached, either coupled or detached, in association with each other;
when receiving the departure information, the server 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 that associates the detected partial area with the identification information,
The server sets a state of the towed vehicle located in the detected partial area to detached with respect to the towed vehicle management information,
When the server receives a search request including the identification information, the server associates the identification information included in the search request with the identification information included in the search request based on the towed vehicle management information and the identification information included in the search request. , and detect the subregion
The towed vehicle management method, wherein the server notifies the terminal device of detection results and states of a plurality of towed vehicles located in a plurality of partial areas . Location information of the terminal device at the time when the towed vehicle coupled to the towing vehicle is separated from the terminal device existing in the vicinity of the towed vehicle, identification information that uniquely identifies the separated towed vehicle, and the towed vehicle. Receiving detachment information associated with information indicating that the state of the towing vehicle is detached, either coupled or detached, and
detecting a partial area where the towed vehicle is located from a plurality of partial areas based on the position information of the departure information;
generating towed vehicle management information that associates the detected partial area with the identification information;
setting the state of the towed vehicle located in the detected partial area to detached with respect to the towed vehicle management information;
When a search request including the identification information is received, a 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. to detect
A towed vehicle management program for causing a computer to execute each process of notifying the terminal device of detection results and states of a plurality of towed vehicles located in a plurality of partial areas .

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