JP2021156581A - Garbage collection route navigation system and program - Google Patents

Abstract

To provide a garbage collection route navigation system with improved operability and convenience of work.SOLUTION: The garbage collection route navigation system comprises: garbage collection route guidance means that displays a garbage collection route on a map image and provides route guidance; unloading withdrawal processing means that, when an unloading withdrawal instruction is input, calculates an unloading guidance route from a withdrawal position to a position of an unloading place stored in unloading place information storage means by setting a current position as the withdrawal position and provides the route guidance; and recovering route processing means that, when a recovering instruction is input, calculates a recovering guidance route from the current position to a recovering position taking the recovering position for the position of the first garbage station after the withdrawal position or the withdrawal position on the garbage collection route, provides route guidance and switches route guidance to the garbage collection route guidance means when the current position reaches the recovering position.SELECTED DRAWING: Figure 2

Description

The present invention relates to a garbage collection route navigation system that guides a garbage truck along a garbage collection route in a garbage collection business.

In recent years, a technique for using a navigation system such as a car navigation device has been developed in a garbage collection operation mainly performed by a cleaning station of each local government. As the technique to be applied, those described in Patent Documents 1 to 3 are known.

The navigation device described in Patent Document 1 is based on a map information storage means (11) for storing map information, a management information storage means (12) for storing management information of a managed object, and a map information stored in the map information storage means. Management information input means (13) for inputting management information into the management information storage means, patrol destination extraction means (14) for extracting a plurality of management objects from the management information storage means, and multiple managements extracted by the patrol destination extraction means. A patrol route calculation means (22) that calculates a patrol route based on the XY coordinates of an object, an output means (23) that outputs a map image or sound that guides the patrol route, and outputs a map image or sound to the output means. It is provided with a map display control means (24) for controlling the operation and a current position acquisition means (25) for acquiring the current position by GPS or the like (see FIG. 1). This navigation device automatically extracts the patrol destination by the patrol destination extraction means (14) and automatically calculates the patrol route by the patrol route calculation means (22), thereby setting a large number of destinations (patrol destinations). It saves time and effort and enables efficient navigation. In addition, the managed object is set as a garbage collection place, and this management information is input to the management information storage means (12), and the garbage collection schedule is set according to factors such as the area of the garbage collection place, the amount of garbage, and the type of garbage. It is said that this navigation device can be applied to the garbage collection business by creating and extracting the garbage collection place to be the patrol destination by the patrol destination extraction means (14) according to this garbage collection schedule. 0054]-[0056]).

The navigation device described in Patent Document 2 has a touch panel terminal that displays a GPS locus continuously acquired by GPS at the current position of the vehicle on a map image, and any one point 1 is set as a starting point. With the other point 2 as the arrival point, the traveling locus (GPS locus) of only the unique predetermined section of the point 1 and the point 2 is converted into new road network data and saved in a dedicated folder in the SD card (see Reference [0018]). ). When navigating, the GPS locus (new road network data) obtained by continuously acquiring the current position by GPS by the combined navigation means of the touch panel terminal is displayed on the map image, and the route based on the existing map (existing road network) is displayed. The existing navigation means that sets the route based on the data) is linked, and the new road network data and the existing road network data are combined (see Reference [0020]). It is described that this makes it possible to display various routes that cannot be handled by a normal navigation method (Reference [0010]). Further, an example of applying this navigation device to the patrol of a garbage truck is described (see Reference [0034]).

Patent Document 2 describes a lane-level vehicle route designation and navigation device, a simulation module that performs micro-simulation of individual vehicles in a traffic flow, and a candidate from a starting point to a destination determined by the simulation module. Lane-level vehicle routing and navigation with a lane-level route optimizer that evaluates expected situations along the route and determines recommended lanes and associated lane-level maneuvers along the candidate route. The device is described. Recommended candidate routes are also provided for delivery or service or emergency response vehicles, or used for evacuation planning or to route vehicles such as garbage trucks or postal delivery vehicles or snowplows. It is stated that it may be done.

Japanese Unexamined Patent Publication No. 2000-205858 Japanese Unexamined Patent Publication No. 2015-224985 Special Table 2016-513805

In the actual garbage collection work, the garbage truck that performs the garbage collection work goes to the garbage collection point (garbage station) provided along the garbage collection route while patrolling the predetermined patrol route (garbage collection route). The garbage that has been put out is collected, and finally the garbage that is put out at all the garbage stations on the garbage collection route is transported to the disposal site. In this case, the garbage collection route is predetermined and does not need to be calculated again in the navigation device. In addition, garbage collection routes often go through passages other than ordinary roads (for example, in parking lots, on the premises of factories and other facilities, private roads, narrow alleys, passages in parks, etc.). Is not registered in the road network data of a normal navigation device, so it is difficult to automatically calculate the route itself. Therefore, it is necessary to read and use the data of the guide route along the garbage collection route that has been created and saved in advance.

On the other hand, if the garbage truck becomes full during the garbage collection business along the garbage collection route, the loaded garbage is once transported to the disposal site and unloaded, and then the garbage collection route is resumed. Return to and continue the garbage collection business. In this case, the driver of the garbage truck memorizes or records the position (collected position) of the garbage station where the garbage collection work is completed, and after unloading the garbage at the disposal site, the place where the garbage collection work is completed. It will be necessary to turn back to. In such a case, in the above-mentioned conventional navigation system, the driver first completes the garbage collection work at the collected position by using the point registration function of the navigation system (the point registration function well known in general navigation systems). After registering the location where you have done this, search the map for the disposal site where you want to unload the garbage, change the destination to the disposal site, then use the route guidance to head to the disposal site, arrive at the disposal site, and dispose of the garbage. After unloading, set the destination registered earlier as the destination, use the route guidance to go to the collected position, and when you arrive at the collected position, return the guidance route to the original garbage collection route. It is very complicated because such an operation is required. Further, when the driver forgets to register the point, it is necessary to search for and specify the collected position on the map based on the driver's memory, which is more complicated. Furthermore, if the driver forgets to register the location and forgets the collected location, it becomes necessary to check to which garbage station the garbage collection work has been completed, which further reduces the work efficiency.

Similarly, if some sections cannot pass on the garbage collection route due to traffic jams or accidents, the guidance route is switched from the garbage collection route to the route calculated by automatic route creation by a general navigation device. After bypassing the impassable section, it is necessary to return the guide route to the garbage collection route, which is very complicated.

Therefore, an object of the present invention is to provide a garbage collection route navigation system having improved business operability and convenience as compared with the conventional one in a navigation system for guiding a route of a garbage collection route in a patrol garbage collection business. It is in.

The first configuration of the garbage collection route navigation system according to the present invention is dust provided with an in-vehicle terminal including a display, an input means for receiving input from a user, and a position detecting means for detecting the current position. It is a garbage collection route navigation system that provides route guidance for car garbage collection routes.
A route information storage means for storing the route information of the garbage truck's garbage collection route,
An unloading place information storage means for storing the location information of the unloading place for unloading garbage trucks, and a unloading place information storage means.
A map display means for displaying a map image around the current position detected by the position detection means and a mark indicating the current position on the screen of the display.
A garbage collection route guidance means that displays the garbage collection route stored in the route information storage means on the map image and provides route guidance.
When the unloading withdrawal instruction is input from the input means, the current position detected by the position detecting means is set as the leaving position, and the position from the leaving position to the position of the unloading place stored in the unloading place information storage means is set. The unloading guidance route, which is the route on the map of the above, is calculated, and the unloading guidance route is displayed on the map image to provide route guidance.
When a return instruction is input by the input means, the return position is set to the return position or the position of the first dust station after the departure position on the dust collection path, and the current position detected by the position detection means is used. The return guidance route, which is a route on the map to the return position, is calculated, the return guidance route is displayed on the map image to provide route guidance, and the current position detected by the position detecting means is the return position. When the vehicle reaches, the route return processing means for switching to the route guidance by the garbage collection route guidance means is provided.

According to this configuration, when the garbage truck becomes full during the garbage collection business along the garbage collection route, when the unloading withdrawal instruction is input by the input means, the unloading withdrawal processing means is at the current position. The unloading guidance route from (leaving position) to the unloading site position stored in the unloading site information storage means is calculated in advance, and the navigation to the unloading site (route guidance) using the unloading guidance route as the guidance route. )I do. Further, when the return instruction is input by the input means after unloading the garbage of the garbage truck at the unloading place, the route return processing means is the first garbage station after the departure position or the departure position on the garbage collection route. The return guide route from the current position to the return position is calculated, and the navigation (route guidance) to the return position is performed using the return guide route as the guide route. Then, when the return position is reached, the navigation (route guidance) by the garbage collection route guidance means using the original garbage collection route as the guidance route is switched. This makes it possible to automatically and quickly record the departure position, change the destination, and change the route guidance when the garbage truck is full during the garbage collection work, improving operability and convenience in business. be able to.

The second configuration of the dust collection route navigation system according to the present invention is the first configuration in which the route return processing means designates the return position on the dust collection route by input from the input means. If so, the return guidance route on the map from the current position detected by the position detection means to the designated return position is calculated, and the return guidance route is displayed on the map image to provide route guidance. At the same time, when the current position detected by the position detecting means reaches the returning position, the dust collecting route after the returning position is displayed and the route guidance is switched to the dust collecting route guiding means.

According to this configuration, for example, while the garbage truck is full during the garbage collection work and is being transported to the unloading place to unload the garbage, the other garbage trucks dispatched for support are in the departure position. In the case where the garbage collection work is performed on the section of the garbage collection route ahead, the point on the garbage collection route where the supporting garbage vehicle has not yet performed the garbage collection work can be set as the return point. ..

The third configuration of the dust collection route navigation system according to the present invention is the current position detected by the position detecting means when an emergency exit instruction is input from the input means in the first or second configuration. Is set as the departure position, and then the position of the specific point on the garbage collection path input by the input means or the position of the first garbage station of the garbage stations on the garbage collection path after the departure position is returned. As a position, an emergency departure route, which is a route on the map from the departure position to the return position and is different from the garbage collection route, is calculated, and the emergency departure route is displayed on the map image and is a route. It is characterized in that it is provided with an emergency withdrawal processing means for performing guidance and switching to route guidance by the dust collection route guidance means when the current position detected by the position detection means reaches the return position.

According to this configuration, if it is difficult to pass through some sections on the garbage collection route due to an emergency such as traffic jam or accident, the emergency withdrawal processing means will be used to shift to and detour to the detour route (emergency withdrawal route). It is possible to automatically and quickly return to the garbage collection route later, and it is possible to improve operability and convenience in business.

Further, the program according to the present invention is read and executed by an in-vehicle terminal including a display, an input means for receiving an input from a user, and a position detecting means for detecting a current position, thereby being used for the in-vehicle use. It is characterized in that the terminal functions as a garbage collection route navigation system having any one of the first to third configurations.

As described above, according to the present invention, when the garbage truck becomes full during the garbage collection work on the garbage collection route, the guide route to the unloading place is switched and the original garbage collection route is restored. It is possible to automatically switch the guidance route for this purpose easily and quickly, and it is possible to improve the operability and convenience in business. In addition, even if it is difficult to pass through some sections on the garbage collection route due to an emergency such as traffic jam or accident, the transition to the detour route (emergency departure route) and the return to the garbage collection route after the detour are automatically performed. It becomes possible to perform it easily and quickly, and it is possible to improve the operability and convenience in business. This can contribute to improving the workability of the garbage collection work and shortening the work time.

It is a figure which shows the hardware structure of the garbage collection route navigation system which concerns on Example 1 of this invention. It is a block diagram which shows the functional structure of the garbage collection route navigation system of FIG. It is ER diagram (IDEF1X notation) which shows the structure of each database of FIG. It is a flowchart which shows the flow of the whole operation of the garbage collection route navigation system of Example 1. It is a figure which shows an example of the display screen of the garbage collection route map and station list. It is a flowchart which shows the operation flow of the steady route guidance processing. It is a flowchart which shows the operation flow of the scheduled end time display processing. It is a flowchart which shows the operation flow of the scheduled end time update process. It is a flowchart which shows the operation flow of the carry-in guidance processing. It is a figure which shows an example of the display screen of the unloading place selection list. It is a flowchart which shows the operation flow of the route departure processing at the time of unloading. It is a figure which shows an example of (a) the display screen of the vehicle-mounted terminal 2 waiting at the time of unloading, and (b) the return point selection screen. It is a flowchart which shows the operation flow of the return point selection process. It is a flowchart which shows the operation flow of the emergency route departure processing.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(1) Definition of terms First, the main terms used in the present specification are defined as follows.

A "passage" is a path that a car can pass through. "Passages" include general roads, park roads / garden roads, open spaces, parking lots, spaces on the premises where automobiles can pass, and the like. A "road" is a passage used for general transportation, and includes national expressways, general national roads, prefectural roads, municipal roads, private roads, village roads, farm roads, forest roads, and the like. A "garbage unloading site" is a place where garbage collected in the garbage collection process is unloaded, such as a garbage disposal site and a landfill site. A "garbage truck" is a commercial vehicle specialized for the purpose of collecting garbage and transporting it to a garbage unloading site. "Garbage station" means a place (garbage storage, garbage collection point) designated to temporarily put garbage when handing over garbage from a garbage collector to a garbage collector. A "garbage-collecting route" is a permutation of continuous passages in which a garbage truck goes around while collecting garbage at each garbage station. The "station name" is the name of the garbage station. The "station coordinate" means the position coordinate (latitude coordinate) expressed in latitude and longitude of the garbage station. "Station attribute" is a garbage station such as the type of garbage (combustible garbage, non-burnable garbage, recyclables, oversized garbage, debris, etc.) designated to be put out at the garbage station, and the collection date (day of the week). Refers to additional information about. "Station information" refers to information about a garbage station, including station coordinates, station names, and station attributes. “Trustee” means a garbage collector that outsources garbage collection operations.

A "node" ("vertex", "node") is a point in a figure consisting of a point and a line segment. An "edge" ("edge", "branch") is a line segment connecting two points in a figure consisting of a point and a line segment. A "graph" is a set of edges connecting a node and two nodes. A "walk" is a permutation of a node and an edge connecting two nodes in a graph. A "trail" is a route in which edges do not overlap in the middle of the route. A "path" is a path in which nodes do not overlap in the middle of the path. "Node coordinate" means a coordinate value given to a node. A "guide walk" is a route that provides directions. The “collecting walk” refers to the route of movement during garbage collection on the collection route graph. “Unloading guide walk” means a route on a map from the current position to the position of the unloading place. The "return guide walk" is a route on the map from the current position to the return position on the collection route. “Collecting walk information” refers to information composed of a sequence of node coordinates of the collection route nodes that make up the collection route. “Station list information” refers to information composed of a sequence of station information of garbage stations on a collection route. “Collecting route information” refers to the attribute information (name, information including garbage classification) and collection path information of the garbage collection route. “Working truck tracking information” refers to information composed of a sequence of coordinate points representing the movement trajectory of a work vehicle. A coordinate point representing a movement locus is called a "trajectory point", and a straight line connecting adjacent locus points is called a "trajectory line". (See Fig. 5 (b)) “Garbage collection task” is one of the waste treatment processes, and some treatment or treatment of garbage is performed from the place where garbage is generated. The business of transporting garbage to the place where it is disposed of. Garbage collection operations include "station collection," which involves traveling around the collection route with a garbage truck and collecting the garbage at each garbage station installed along the collection route, as well as factories and offices that discharge garbage. , There is a "door-to-door collection" in which each facility is visited by a garbage truck and garbage is collected. The garbage collection route related to station collection is called "station collection route", and the garbage collection route related to door-to-door collection is called "door-to-door collection route".

(2) System Configuration FIG. 1 is a diagram showing a hardware configuration of a garbage collection route navigation system according to a first embodiment of the present invention. The garbage collection route navigation system of this embodiment is composed of a management server 1 and one or a plurality of vehicle-mounted terminals 2, and each vehicle-mounted terminal 2 is connected to the management server 1 via a communication line 3. The management server 1 is a general-purpose computer. Further, each in-vehicle terminal 2 is a portable information terminal (Personal Digital Assistant: PDA) such as a tablet or a smartphone, or a portable navigation device (PND) such as a car navigation device, and is a display or an input device (touch panel, A key button, a microphone, etc.), a GNSS (Global Navigation Satellite System) receiver, and a communication interface with a communication line 3 are used.

FIG. 2 is a block diagram showing a functional configuration of the garbage collection route navigation system of FIG. In FIG. 2, the management server 1 includes a map information database 101, a station information database 102, a unloading site information database 103, a route information database 104, a business information management database 105, a trustee information management database 106, and a trajectory information management database 107. It includes an estimated time calculation unit 111, a database management unit 112, and a communication interface unit 113. Each of these functional blocks is configured as a functional module in the management server 1 by loading and executing the program in the management server 1.

The map information database 101 is a database that stores and manages information related to maps. The station information database 102 is a database that stores and manages information about each garbage station. The unloading place information database 103 is a database that stores and manages information about each unloading place. The route information database 104 is a database that stores and manages information related to the garbage truck garbage collection route. The business information management database 105 is a database that stores and manages information related to the progress information of the garbage collection business of each trustee. The trustee information database 106 is a database that stores and manages information about the trustee. The locus information management database 107 is a database that stores and manages information on a movement locus during a past work vehicle garbage collection operation.

The estimated time calculation unit 111 refers to the designated garbage collection route based on the history of the past garbage truck stored in the business information management database 105 or the trajectory information management database 107 in the garbage collection route. It is a module that performs the process of calculating the expected history tour time of. The database management unit 112 inputs data to the map information database 101, the station information database 102, the unloading site information database 103, the route information database 104, the business information management database 105, the trustee information management database 106, and the trajectory information management database 107. This is a module that performs output management processing. The communication interface unit 113 is a module that performs data communication processing with the communication line 3.

The in-vehicle terminal 2 includes an in-vehicle terminal storage unit 201, a display 202, a speaker 203, an input device 204, a GNSS receiving unit 205, a control unit 206, a download unit 207, and a communication interface unit 208. Each of these functional blocks is configured as a functional module in the vehicle-mounted terminal 2 by loading and executing the program in the vehicle-mounted terminal 2.

The in-vehicle terminal storage unit 201 is a module that stores various data acquired from the management server 1 in the in-vehicle terminal 2 and various data generated in the in-vehicle terminal 2. The display 202 is a display device that outputs image information. The speaker 203 is an audio output device that outputs audio information. The input device 204 is a hardware device used for inputting data and a control signal to the in-vehicle terminal 2, and is an input unit of a keyboard, a touch pen, a mouse, a touch panel display, and the like. In this embodiment, as an example, an example in which a tablet-type terminal is used for the in-vehicle terminal 2 will be described, and an example in which a touch panel display is used as the display 202 and the input device 204 will be described. The GNSS receiving unit 205 is a module that receives radio waves transmitted from a plurality of satellites of the GNSS (Global Positioning Satellite System) and positions the current position. The control unit 206 is a module that controls the operation of the garbage collection route navigation operation in the vehicle-mounted terminal storage unit 201. The communication interface unit 208 is a module that performs data communication processing with the communication line 3.

The control unit 206 includes DL / UL unit 210, map display unit 211, current position acquisition unit 212, route calculation unit 213, route display unit 214, station list display unit 215, audio guide output unit 216, and garbage collection route guidance unit 218. , Business information update unit 219, estimated time calculation unit 220, unloading route departure processing unit 221, emergency route departure processing unit 222, route return processing unit 223, and initial setting unit 224.

The DL / UL unit 210 is a module that downloads various data from the management server 1 and saves it in the in-vehicle terminal storage unit 201, and also uploads various data stored in the in-vehicle terminal storage unit 201 to the management server 1. Is. The map display unit 211 is a module that performs a process of displaying a map image around the current position determined by the GNSS receiving unit 205 on the screen of the display 202. The current position acquisition unit 212 is a module that acquires the current position determined by the GNSS receiving unit 205 and displays a mark indicating the current position on the map image displayed on the screen of the display 202.

The route calculation unit 213 is a module that calculates a guide route on the map from the current position determined by the GNSS reception unit 205 to the set destination point. The route display unit 214 is a module that performs a process of displaying a guide route on the screen of the display 202. The station list display unit 215 is a module that performs a process of displaying a list of garbage stations on the currently selected garbage collection route (hereinafter referred to as “station list”) on the screen of the display 202. The voice guide output unit 216 is a module that outputs a voice guide for route guidance (navigation) along a set guidance route from the speaker 203 according to the current position determined by the GNSS reception unit 205. be. The garbage collection route guidance unit 218 is a module that displays a garbage collection route on a map image and performs a process of providing route guidance. The business information update unit 219 relates to a garbage station stored in the in-vehicle terminal storage unit 201 when an input is made by the input device 204 to change a certain garbage station on the garbage collection route to collected. It is a module that performs a process of collecting business execution information and collecting the display of the garbage station in the station list on the screen of the display 202. The estimated time calculation unit 220 is a module that performs a process of calculating the required time when tracing the guide route calculated by the route calculation unit 213.

When the unloading departure instruction is input from the input device 204, the unloading route departure processing unit 221 unloads the dust stored in the in-vehicle terminal storage unit 201 from the current position acquired by the current position acquisition unit 212 at that time. It is a module that calculates the unloading guide route to the position of the loading place, sets the unloading guide route as the guide route, and displays it on the map image. Here, the "unloading withdrawal instruction" is an instruction input by the user from the input device 204, and is an instruction to unload the collected garbage from the garbage truck to the garbage unloading place.

When an emergency exit instruction is input from the input device 204, the emergency route departure processing unit 222 operates at a specific point on the garbage collection route input by the input device 204 or at the end of the garbage stations on the station list. The position of the garbage station next to the garbage station whose implementation information has been changed to collected is set as the return position, and the route from the current position acquired by the current position acquisition unit 212 at that time to the return position is used. Therefore, an emergency departure route different from the garbage collection route is calculated, the emergency departure route is set as a guide route and displayed on the map image, and the current position acquired by the current position acquisition unit 212 is set to the return position. When it arrives, it is a module that sets the garbage collection route after the return position as the guide route and displays it on the map image. Here, the "emergency exit instruction" is an instruction input by the user from the input device 204, and is an emergency event (for example, a traffic jam that hinders the garbage truck from operating the garbage truck). This is an instruction to separate the operation route of the garbage truck from the garbage collection route in the event of an accident, traffic jam, etc.).

When the return instruction is input by the input device 204, the route return processing unit 223 receives the business execution information at the end of the garbage stations on the garbage collection route from the current position acquired by the current position acquisition unit 212 at that time. The position of the next garbage station after the garbage station changed to collected, or the position of a specific return point on the garbage collection path specified by the input from the input device 204 is set as the return position, and the current position at that time is set. The return guide route from the current position acquired by the acquisition unit 212 to the return position is calculated, the return guide route is displayed on the map image, and the current position acquired by the current position acquisition unit 212 is the return. When the position is reached, the garbage collection route after the return position is set as the guide route and displayed on the map image. Here, the "return instruction" is an instruction input from the input device 204 by the user, and is an instruction to return the garbage truck to the garbage collection route.

The initial setting unit 224 is a module that executes the initial setting process described later.

(3) Database configuration FIG. 3 is an ER diagram (IDEF1X notation) showing the configuration of each database of FIG. The map information database 101 includes a road net information table 101a and a map image information table 101b. The map information has a layer structure in which a plurality of layers are layered on the basic map to form one map screen, and the image information (background map image information) of the basic map is stored in this layer. A basic map image layer to be used and a road layer for storing road net information which is information on the road network are included. The background map image information is composed of a set of background map images of each map leaf obtained by dividing the entire range of the map into a sheet of rectangular geographical areas having a certain area. The road net information is basically expressed as a road network graph, node coordinates are specified for each road node of this road network graph, and road attribute information is specified for each road edge. The road net information table 101a is a table for storing road net information in the road layer, and constitutes a "road path ID" field for storing an identification number of each unit road path constituting the road network, and the unit road path. It has a "road path information" field that stores the order of node coordinates, and a "road attribute information" field that stores the attributes of the unit road path (road type (national road, prefectural road, etc.), road name, driving lane information, etc.). ing. The map image information table 101b is a table for storing the background map image information in the basic map image layer, and is a "figure leaf ID" field for storing the identification number of each map leaf constituting the background map image information, the map leaf. It is provided with a "map leaf image information" field for storing information on the basic map image constituting the map, and a "map leaf position information" field for storing the position information of the map leaf.

The station information database 102 includes a garbage station information table 102a. The garbage station information table 102a is a table for storing information about each garbage station, and includes a "station ID" field for storing the identification number of each garbage station, a "station name" field for storing the name of the garbage station, and the garbage. A "station coordinate" field that stores the position coordinates (history coordinates) of the station, a "station attribute" field that stores the attribute information of the garbage station, and a "collection route" that stores the collection route ID of the garbage collection route to which the garbage station belongs. It has an "ID" field. Here, the attribute information of the garbage station includes additional information such as a designated garbage type and a collection day of the week. The record information in the garbage station information table 102a is "station information".

The unloading place information database 103 includes a unloading place information table 103a. The unloading place information table 103a is a table for storing information about each garbage unloading place, and stores the "unloading place ID" field for storing the identification number of each garbage unloading place and the name of the garbage unloading place. The "unloading place name" field, the "unloading place coordinates" field that stores the position coordinates (history coordinates) of the garbage unloading place, and the "unloading place attribute" field that stores the attribute information of the garbage unloading place. It has. Here, the attribute information of the garbage unloading place includes additional information such as the type of garbage to be disposed of at the garbage unloading place and the opening day of the week. The information of the record of the unloading place information table 103a is called "unloading place information".

The route information database 104 includes a route information table 104a and a voice guide information table 104b. The route information table 104a is a table that stores information about each garbage collection route, and has a “collection route ID” field that stores the identification number of the garbage collection route, a “route name” field that stores the name of the garbage collection route, and the like. A "garbage classification" field that stores the garbage classification of the garbage collection route, a "collection route information" field that stores a sequence of node coordinates of the collection route nodes constituting the garbage collection route, and a garbage station on the garbage collection route. It is provided with a "station list" field for storing the sequence of station information and a "trustee ID" field for storing the trustee ID of the trustee related to the garbage collection route. The record information in the route information table 104a is "collection route information". The voice guide information table 104b is a table that stores information about voice guides on each garbage collection route, and is a "guide ID" field that stores an identification number of voice guide information, and a garbage collection route to which the voice guide information belongs. A "collection route ID" field that stores the collection route ID, a "guide point" field that stores the position coordinates (metropolitan history coordinates) of the point (voice guide point) where the voice guide information is output, and a guide related to the voice guide information. It has an "audio content" field to store audio content. The record information in the audio guide information table 104b is called "audio guide information".

The business information database 105 includes a business information table 105a. The business information table 105a is a table for storing information on the business execution of the garbage collection business of each trustee, and each record stores information on the date and time when the trustee performed the garbage collection business for each garbage station. .. The business information table 105a has a "business information ID" field for storing the identification number of each business information, a "station ID" field for storing the identification number of the garbage station related to the business information, and identification of the trustee related to the business information. It has a "station ID" field for storing numbers and a "implementation date and time" field for storing information on the date and time when the garbage collection work was performed. The record information in the audio guide information table 104b is called "business execution information".

The trustee information database 106 includes a trustee information table 106a. The trustee information table 106a is a table that stores information about the trustee who is entrusted with the garbage collection business, stores the "trustee ID" field that stores the identification number of each trustee, and the name or name of the trustee. It has a "trustee name" field. The information of the record in the trustee information table 106a is referred to as "trustee information".

The locus information management database 107 includes a locus information table 107a. The locus information table 107a is a table for storing information (work vehicle locus information) related to the movement locus during the garbage collection work of the past work vehicle, and is a “trajectory ID” field for storing the identification number of each movement locus, the movement. Stores a "start date and time" field that stores the start date and time of the locus, an "end date and time" field that stores the end date and time of the movement locus, and a series of (trajectory point coordinates (metropolitan history coordinates), locus point time) of the movement locus. "Trajectory point sequence information" field, "collection route ID" field for storing the collection route ID of the garbage collection route related to the movement locus, and "trustee ID" field for storing the trustee ID of the trustee related to the movement locus. , It is provided with a "garbage classification" field for storing the garbage classification related to the movement locus. Here, the "garbage classification" refers to a classification of garbage, for example, a classification of combustible waste, non-combustible waste (cans / bottles), recyclable waste, and the like.

(4) System operation The operation of the garbage collection route navigation system of this embodiment configured as described above will be described below.
(4.1) Overall Operation FIG. 4 is a flowchart showing the overall flow of the operation of the garbage collection route navigation system according to the first embodiment. In the garbage collection route navigation system of this embodiment, the vehicle-mounted terminal 2 is mounted on a garbage truck or carried by a user who drives the garbage truck, and the vehicle-mounted terminal 2 navigates the garbage collection route to the user. As shown in FIG. 4, the operation of the vehicle-mounted terminal 2 in this garbage collection route navigation system is as follows: (i) initial setting session (S101 to S103), (ii) start forwarding route guidance session (S104 to S106), (iii). It is composed of four child sessions (S107 to S116) and (iv) end forwarding route guidance session (S117), and the combination of these four child sessions is regarded as one garbage collection route session. There is. As for the locus information record in the locus information table 107a of FIG. 3, one locus information record is created for one garbage collection route session.

First, the in-vehicle terminal 2 is a list of garbage collection route item information which is a set of the map information database 101 of FIG. 3 and (collection route ID, route name, garbage classification, trustee ID) of each garbage collection route. The “garbage collection route item list” and the “trustee list”, which is a list of (trustee ID, trustee name) of each trustee, are downloaded in advance and stored in the in-vehicle terminal storage unit 201. First, in the in-vehicle terminal 2, the initial setting unit 224 displays the dust collection route selection menu screen on the display 202, and the user selects the dust collection route from the selection menu screen by the input device 204, and the initial setting unit 224. Acquires the collection route ID of the selected garbage collection route from the garbage collection route item list (S101). On the garbage collection route selection menu screen, a list for selecting the trustee name and the garbage classification registered in the trustee list is displayed, and the user first selects the trustee name and the garbage classification. The initial setting unit 224 acquires the trustee ID of the selected trustee name from the trustee list, and extracts the garbage collection route item information corresponding to the trustee ID and the selected garbage classification from the garbage collection route item list. Then, the extracted route name selection list is displayed on the selection menu screen. The user selects a route name for carrying out the garbage collection business from this selection list. The initial setting unit 224 acquires the collection route ID of the selected route name from the garbage collection route item list.

Next, the DL / UL unit 210 of the in-vehicle terminal 2 adds the collection route ID of the garbage collection route selected by the initial setting unit 224 to the route data transmission request and transmits it to the management server 1 (S102). When the database management unit 112 of the management server 1 receives the route data transmission request, it generates a new trajectory information record RT for the collection route ID added to the route data transmission request in the trajectory information table 107a, and generates the collection route ID. The collected route information for the collected route ID is extracted from the route information table 104a, the voice guide information for the collected route ID is extracted from the voice guide information table 104b to generate a "voice guide information list", and the station information for the collected route ID is garbage. A "station information list" is generated by extracting from the station information table 102a. In addition, the unloading place information of the trash unloading place corresponding to the trash classification of the garbage collection route is extracted from the unloading place information table 103a to generate a “unloading place information list”. Then, the generated {collection route information, audio guide information list, station information list, unloading place information list} is distributed to the in-vehicle terminal 2 that has transmitted the route data transmission request (S301). The initial setting unit 224 receives the delivered {collection route information, voice guide information list, station information list, unloading place information list}, and stores the delivered {collection route information, voice guide information list, unloading place information list} in the in-vehicle terminal storage unit 201 (S102). The current position acquisition unit 212 of the in-vehicle terminal 2 acquires the current position determined by the GNSS receiving unit 205, and the map display unit 211 displays a map image around the current position on the display 202. The garbage collection route guide unit 218 adds the collection route of the selected garbage collection route to the map image based on the collection route information related to the received collection route information. The station list display unit 215 adds the garbage station related to the selected garbage collection route on the map image based on the “station list” field included in the received collection route information and the station information list related thereto, and displays 202. A station list, which is a list of garbage stations on the garbage collection route arranged along the collection route, is displayed in the area next to the area of the map image displayed in (S103). As a result, the initial setting session ends, and the session shifts to the start forwarding route guidance session.

FIG. 5 shows an example of a map image of the garbage collection route and a display screen of the station list. FIG. 5A is a diagram showing the arrangement of each display area in the display screen, FIG. 5B is a diagram showing an example of a station list displayed in the station list display area, and FIG. 5C is a map image display. It is a figure which shows an example of the map image displayed in the area. In FIG. 5A, the map image display area 301 is arranged on the left side of the central portion of the display screen 300, the station list display area 302 is arranged on the right side thereof, and the upper side of the map image display area 301 and the station list display area 302. The attribute information display area 303 is arranged in, the transmission button 304 is arranged below the station list display area 302, and the business progress counter display area 305 and the business end time display area 306 are arranged above the station list display area 302. ing. An unloading release button 307, an emergency release button 308, and a log-off button 309 are arranged on the lower left side of the map image display area 301.

In the map image display area 301, a map image, a collection route, a mark indicating the position of the garbage station (station mark), a mark indicating the current position (current position mark), and the like are displayed. The display area of this map image can be freely shifted by swiping or flicking the user with a finger. In the station list display area 302, the station list on the selected garbage collection route is displayed. The display range of this station list can be freely scrolled by the user swiping or flicking up and down with a finger. In the attribute information display area 303, attribute information such as the vehicle number of the garbage truck used by the trustee, the garbage classification related to the garbage collection route, and the name of the garbage collection route is displayed. The transmission button 304 is used for inputting a transmission instruction such as when transmitting business information indicating that the business has been completed when the garbage collection business is performed with respect to the garbage station. The business progress counter ((number of collected stations) / (total number of stations)) is displayed in the business progress counter display area 305. In the business end time display area 306, the business end time predicted and calculated by the scheduled end time display process described later is displayed. The unloading / leaving button 307 is a button for inputting a unloading / leaving instruction when unloading the loaded garbage to the garbage unloading area when the garbage truck is full of loaded garbage in the middle of the garbage collection route. The emergency withdrawal button 308 is a button for inputting an emergency withdrawal instruction when it becomes necessary to take a detour route due to some emergency in the middle of the garbage collection route. The log-off button 309 is a button for inputting a completion instruction of the garbage collection operation.

A station list as shown in FIG. 5B is displayed in the station list display area 302. In the station list display area 302, the station display field 302a in which the station information record of the garbage station existing along the garbage collection route is displayed is displayed in parallel. The station name, station number, and business execution status are displayed in the station display field 302a of each station information record. The "station number" is a sequential number of garbage stations related to station information records along the garbage collection route. The “business execution status” indicates a status in which the garbage collection business of the garbage station related to the station information record is either incomplete (uncollected) or completed (collected).

As shown in FIG. 5C, the map image display area 301 is overlaid with the basic map image, and the collection route (thick solid line), the start forwarding route (thick dotted line), and the collection of the selected garbage collection route are superimposed. A station mark (square) indicating the position of each garbage station on the route, a current position mark (triangular inclusion circle) indicating the current position, and the like are displayed. Here, the "starting forwarding route" means a route from the current position to the starting point of the collection route of the garbage collection route. This start forwarding route will be described in step S104 described later.

The collection route is different from the guidance route in a general car navigation device, and it enters a route that goes through a passage other than a road (parking lot, narrow alley, factory premises, etc.) or a dead-end alley. path as or folded after (e.g., such as the route of the section l ₁ of to FIG. 5 (c)) also is characterized in that included. Therefore, such an irregular collection route cannot be obtained by automatic calculation as is performed by a general car navigation device, and is therefore created in advance and stored in the route information database 104 of the management server 1. Things are downloaded and used.

In addition to the "station collection", which collects garbage from each garbage station installed along the collection route, the garbage collection business that goes around the collection route of the garbage collection route and collects garbage , There is "door-to-door collection" where garbage is collected by visiting each factory, office, facility, etc. door-to-door. In the case of door-to-door collection, the station list is blank because there is no garbage station on the collection route of the garbage collection route.

Returning to FIG. 4, next, the route calculation unit 213 of the in-vehicle terminal 2 determines the start forwarding route from the current position acquired by the current position acquisition unit 212 to the start point of the collection route related to the selected garbage collection route. After calculation, the route display unit 214 additionally displays the start forwarding route on the map image displayed on the display 202, and sets the start forwarding route to the current guidance route (hereinafter referred to as “current guidance route”) (S104). .. As for the start forwarding route, a method of minimizing the route cost using road network data can be used in the same manner as the method currently used in a general car navigation device. Next, the vehicle-mounted terminal 2 performs route guidance by repeating the next steady route guidance process (see FIG. 6) until the current position acquired by the current position acquisition unit 212 reaches the start point of the collection route (S105, S106). ).

FIG. 6 shows the flow of operation of the steady route guidance process. In the steady route guidance process, first, the current position acquisition unit 212 of the in-vehicle terminal 2 acquires the meridian coordinates of the current position determined by the GNSS receiving unit 205 (S121), and marks the current position at the current position on the map image. (S122). Next, the current position acquisition unit 212 transmits the historical coordinates of the current position and the current time to the management server 1. When the database management unit 112 of the management server 1 receives (the meridian coordinates of the current position, the current time) (S311), it adds this to the "trajectory point sequence information" field of the locus information record RT of the locus information table 107a. The locus information record RT is updated (S312). Next, if the current position is the voice guide point of any of the voice guide information included in the voice guide information list, the voice guide output unit 216 outputs the voice guide by the speaker 203 (S124, S125), 1 The regular route guidance process for each round is completed.

In the garbage collection route navigation system of this embodiment, the guidance route is generally an irregular collection route, and its use is also specialized for garbage collection work. Therefore, the voice content of the voice guide information is also a normal navigation. It is supposed to be different from the source of the device. Specifically, for example, "Be careful because it is behind the fence.", "Be careful because it is behind the wall.", "Be careful to cover the collection point." "Be careful not to hang the net.", "Because it is in the back alley, please collect it in the back.", "Because it is in the back alley, please make a U-turn in the back." Such audio content is used.

Returning to FIG. 4, when the current position acquired by the current position acquisition unit 212 reaches the start point of the collection route (S107), the garbage collection route guide unit 218 sets the current guide route to the collection route of the selected garbage collection route. Is switched to, and the scheduled end time display process (see FIG. 7) is executed to calculate the business end time te of the garbage collection route and display it in the business end time display area 306 (see FIG. 5) (S108). As a result, the start forwarding route guidance session ends, and the process shifts to the garbage collection route guidance session. At this time, the garbage collection route guide unit 218 selects the station display field 302a at the head of the station list displayed in the station list display area 302.

FIG. 7 is a flowchart showing the operation flow of the scheduled end time display process. In the scheduled end time display process (S108), the garbage collection route guidance unit 218 first transmits a route history patrol time transmission request to the management server 1 (S131). When the estimated time calculation unit 111 of the management server 1 receives the route history tour time transmission request, it needs to predict the garbage collection route based on the past trajectory information of the garbage collection route stored in the trajectory information management database 107. The time is calculated, and the calculated estimated required time is transmitted to the in-vehicle terminal 2 (S321). In this case, the expected time calculation unit 111 is the locus information record of the collection route ID of the current garbage collection route session among the locus information records stored in the locus information table 107a, and is the same as the current month / day. Extract the ones of the same month and day, and calculate the average time required from each garbage station to the end point of the collection route of the garbage collection route from the trajectory point sequence information of each extracted trajectory information record, and use this as the collection route. Estimated required time {Te (i, Ns) | i = 1, ..., Ns-1} (Ns is the number of garbage stations in the station list, Te (i, Ns) is the last from the i-th garbage station (Ns-th) ) Estimated time required to reach the garbage station). When the garbage collection route guidance unit 218 of the in-vehicle terminal 2 receives the predicted required time {Te (i, Ns) | i = 1, ..., Ns-1} from the management server 1 (S131), the predicted required time Te (S131) The time te = tk + Te (1, Ns) obtained by adding (1, Ns) to the current time ct is displayed in the business end time display area 306 (see FIG. 5) (S132).

If the garbage collection route is a door-to-door collection route, there is no garbage station on the garbage collection route and the station list is empty. Therefore, in step S131, the estimated time calculation unit 111 has extracted each locus. From the locus point sequence information of the information record, the average of the required time from the start point to the end point of the collection route of the garbage collection route is calculated, and this is calculated as the estimated required time Te (L) (L is the total distance of the collection route) of this collection route. ). Then, in step S132, the garbage collection route guide unit 218 of the in-vehicle terminal 2 sets the time te = tk + Te (L) obtained by adding the predicted required time Te (L) to the current time ct in the business end time display area 306 (FIG. 5). See).

Returning to FIG. 4, the garbage collection route guidance unit 218 then executes the steady route guidance process of FIG. 6 once (S109). As a result, the current position and time are transmitted to the management server 1 and stored in the locus information table 107a as locus point sequence information.

Next, when the transmission button 304 is selected (tapped) by the user (S110), the next scheduled end time update process is executed (S111), and the process returns to the process of step S109. FIG. 8 shows a flowchart of the operation of the scheduled end time update process in step S111.

In FIG. 8, when the current garbage collection route is the station collection route (S141), first, the business information update unit 219 assumes that the currently selected garbage station S (i) in the station list display area 302 has been collected. (Current time (implementation date and time), station ID of the garbage station S (i)) is transmitted to the management server 1 as collection time information of the garbage station S (i), and then the next garbage station S (i + 1) in the station list. ) Is selected (S142). When the database management unit 112 of the management server 1 receives the collection time information, it stores the collection time information in the business information table 105a. Next, the estimated time calculation unit 220 of the in-vehicle terminal 2 is at the end of the station list from the previously received estimated required time {Te (i, Ns) | i = 1, ..., Ns-1} and the current time ct. The estimated time te = tk + Te (i, Ns) to reach the garbage station S (Ns) is calculated, and the display of the business end time display area 306 on the display 202 is updated to the calculated estimated time te.

On the other hand, in FIG. 8, when the current garbage collection route is a door-to-door collection route (S141), the estimated time calculation unit 220 of the in-vehicle terminal 2 follows the collection route from the current position to the end point of the collection route of the garbage collection route. The distance Li is calculated, and the estimated required time Te (Li) from the current position to the end point is calculated by Te (Li) = Te (L) × Li / L (L is the total distance of the collection route), and the collection route is calculated. The estimated time te = tk + Te (Li) to reach the end point is calculated, and the display of the business end time display area 306 on the display 202 is updated to the calculated estimated time te (S144).

Returning to FIG. 4, next, when the unloading release button 307 is selected (tapped) (that is, the unloading release instruction is input) by the user (S112), the in-vehicle terminal 2 is set to the unloading route described later. The withdrawal process (see (4.3)) is executed (S113), and then the process returns to the process of step S109. It should be noted that this route departure process at the time of unloading is executed when the loaded garbage is unloaded at the garbage unloading place when the loaded garbage of the garbage truck becomes full in the middle of the garbage collection route.

Next, when the emergency exit button 308 is selected (tapped) (that is, an emergency exit instruction is input) by the user (S114), the in-vehicle terminal 2 refers to the emergency route exit process ((4.4)) described later. ) Is executed (S115), and then the process returns to the process of step S109. It should be noted that this emergency route departure process is executed when it becomes necessary to take a detour route in the middle of the garbage collection route due to some emergency.

Next, has all the collection work on the collection route of the garbage collection route been completed (that is, has the transmission button 304 been selected (tapped) at the end point of the garbage collection route and the scheduled end time update process (S111) has been completed)? It is determined whether or not (S116), and if all the collection operations are not completed, the process returns to the process of step S109. When all the collection operations are completed, the in-vehicle terminal 2 executes the carry-in guidance process (see (4.2)) described later to provide route guidance to the unloading site (S117). Then, when the current position acquired by the current position acquisition unit 212 reaches the position of the unloading place, the in-vehicle terminal 2 notifies the management server 1 that the collection work of the garbage collection route has been completed up to the unloading work. When the collection route completion notification is transmitted (S118) and the database management unit 112 of the management server 1 receives the collection route completion notification (S302), the update of the trajectory information record for the garbage collection route is completed and the garbage collection route session Is completed (S303). After that, the in-vehicle terminal 2 displays a selection menu on the display 202 as to whether or not to continue the garbage collection business (S119), and when the selection menu is selected to continue the garbage collection business, Returning to the process of step S101, if it is selected not to continue the garbage collection business, the process ends.

(4.2) Carry-in Guidance Processing FIG. 9 is a flowchart showing the operation flow of the carry-in guidance processing. In the carry-in guidance process, first, the unloading route departure processing unit 221 reads out the unloading site information list received in step S102 and stored in the in-vehicle terminal storage unit 201, and the garbage related to the current garbage collection route. The selection list of the unloading place corresponding to the type is displayed on the display 202 (S151). FIG. 10 shows an example of the display screen of the unloading place selection list. On the display screen of the unloading place selection list, the selection button 321 of each unloading place included in the unloading place information list, the cancel button 322, and the OK button 323 are arranged. The user selects the destination unloading place with the selection button 321 on this display screen, and confirms the selection with the OK button 323 (S152). If there is only one unloading place information included in the unloading place information list, the unloading place related to the unloading place information is automatically selected, and steps S151 and S152 are omitted.

Next, when the unloading place is selected, the unloading route departure processing unit 221 determines the unloading guidance route, which is the guidance route from the current position to the unloading place, by the route calculation unit 213 (S153). As for the determination of the unloading guidance route, a method of minimizing the route cost using road network data or the like can be used in the same manner as the method currently used in a general car navigation device. Next, the route departure processing unit 221 at the time of unloading sets the current guidance route as the unloading guidance route, and the in-vehicle terminal 2 sets the current position acquired by the current position acquisition unit 212 to the position of the unloading place which is the destination. Until it is reached, route guidance is performed by repeating the steady route guidance process of FIG. 6 (S154, S155). Then, when the current position acquired by the current position acquisition unit 212 reaches the position of the unloading place (S155), the carry-in guidance process ends.

(4.3) Route departure processing at the time of unloading Next, the route departure processing at the time of unloading in step S111 of FIG. 4 will be described. FIG. 11 is a flowchart showing the operation flow of the route departure process at the time of unloading. When the unloading release button 307 is selected (tapped) by the user in step S112 of FIG. 4, the unloading route departure processing unit 221 of the in-vehicle terminal 2 first performs the carry-in guidance described in (4.2). The process is executed and the route guidance to the selected unloading place is performed (S161). When the garbage truck arrives at the unloading area, the garbage loaded on the garbage truck is unloaded at the unloading area. While the unloading work is being performed, the vehicle-mounted terminal 2 is in a standby state (S162). FIG. 12A shows an example of the display screen of the in-vehicle terminal 2 on standby at the time of unloading. During the unloading standby, the navigation return button 310 is displayed on the display screen of the display 202 instead of the unloading release button 307 and the emergency release button 308 of FIG. 5 (a). The navigation return button 310 is a button for inputting a return instruction to return to the collection route of the garbage collection route after the unloading work is completed.

When the unloading work is completed and a return instruction is input by the navigation return button 310 in step S162, the route return processing unit 223 performs the following return point selection process (S163). FIG. 13 is a flowchart showing the operation flow of the return point selection process (here, the garbage collection route shows the case of the station collection route). In the return point selection process, first, the route return processing unit 223 displays the return point selection screen as shown in FIG. 12B on the display 202 (S171). On the return point selection screen, select the [Next station] button to specify the return point as the next garbage station, the [Return station selection] button to specify the return point as a specific garbage station to select from the station list, and the return point. A [Select Point] button is displayed to specify any point on the collection route on the map. The user selects a return point from these buttons. When [Next Station] is selected (S172), the route return processing unit 223 sets the return point to the position of the garbage station next to the garbage station where the last garbage was collected before the unloading departure process. (S173). When [Return Station Selection] is selected (S174), the route return processing unit 223 sets the return point at the position of a specific garbage station selected from the station list in the station list display area 302 by the user. (S175). When [Point selection] is selected (S176), the route return processing unit 223 then sets the return point at a specific point designated by the user on the collection route of the map image display area 301 (S177). ).

If the current garbage collection route is a door-to-door collection route, the return point is left instead of the [Next station] button and the [Return station selection] button on the return point selection screen shown in FIG. 12 (b). The [Return to departure point] button for entering the selection instruction to be specified for the point is displayed. Then, when the [Return to departure point] button is selected, the route return processing unit 223 sets the return point to the position of the point where the collection route of the garbage collection route has left by the unloading departure process.

Returning to FIG. 11, the route return processing unit 223 then determines the return guide route, which is the guide route from the current position acquired by the current position acquisition unit 212 at that time to the return point (S153). As for the determination of the return guidance route, a method of minimizing the route cost using road network data or the like can be used in the same manner as the method currently used in a general car navigation device. Next, the route return processing unit 223 sets the current guide path as the return guide route, and the in-vehicle terminal 2 reaches the return point where the current position acquired by the current position acquisition unit 212 is the destination, as shown in FIG. Route guidance is performed by repeating the steady route guidance process (S165, S166). Then, when the current position acquired by the current position acquisition unit 212 reaches the return point (S156), the route return processing unit 223 switches the current guide route to the collection route of the garbage collection route (S157), and the route at the time of unloading. End the withdrawal process.

As described above, in the garbage collection route navigation system of this embodiment, when the garbage on the garbage truck becomes full in the middle of the garbage collection route, the conventional garbage is unloaded at the garbage unloading area. You can easily switch to the route guidance to the garbage unloading place without having to search for the destination from the address of the garbage unloading place, and after unloading the garbage from the garbage truck at the unloading place. , You can easily switch to the return route guidance when returning to the original garbage collection route. Therefore, it is easy to use and the garbage collection work can be carried out smoothly.

(4.4) Emergency route departure process Next, the emergency route departure process in step S114 of FIG. 4 will be described. FIG. 14 is a flowchart showing the operation flow of the emergency route departure process.
When the emergency exit button 308 is selected (tapped) by the user in step S114 of FIG. 4, the emergency route exit processing unit 222 of the in-vehicle terminal 2 first executes the return point selection process described with reference to FIG. , The position of the return point is determined (S181). Next, the emergency route departure processing unit 222 acquires the current position at that time by the current position acquisition unit 212, and is a route on the map from the current position to the position of the return point, which is a garbage collection route. Computes some candidates for emergency withdrawal routes that are different routes (S182). Next, one emergency departure route is selected from the calculated emergency departure route candidates by dialogue processing with the user, and the selected emergency departure route is set as the current guidance route (S183). Then, the in-vehicle terminal 2 performs route guidance by repeating the steady route guidance process of FIG. 6 until the current position acquired by the current position acquisition unit 212 reaches the return point which is the destination (S184, S185). Then, when the current position acquired by the current position acquisition unit 212 reaches the return point (S185), the emergency route departure processing unit 222 switches the current guidance route to the collection route of the garbage collection route (S186), and in an emergency End the route departure process.

1 Management server 2 In-vehicle terminal 3 Communication line 101 Map information database 101a Road net information table 101b Map image information table 102 Station information database 102a Garbage station information table 103 Unloading area information database 103a Unloading area information table 104 Route information database 104a Route information table 104b Voice guide information table 105 Business information management database 105a Business information table 106 Trustee information management database 106a Trustee information table 107 Trajectory information management database 107a Trajectory information table 111 Time required calculation unit 112 Database management unit 113 Communication interface unit 201 In-vehicle terminal storage unit 202 Display 203 Speaker 204 Input device 205 GNSS receiving unit 206 Control unit 208 Communication interface unit 210 DL / UL unit 211 Map display unit 212 Current position acquisition unit 213 Route calculation unit 214 Route display unit 215 Station list display unit 216 Voice guide output unit 218 Garbage collection route guidance unit 219 Business information update unit 220 Estimated time calculation unit 221 Unloading route departure processing unit 222 Emergency route departure processing unit 223 Route return processing unit 224 Initial setting unit

Claims (4)

A garbage truck navigation system that guides the garbage truck's garbage collection route, equipped with an in-vehicle terminal equipped with a display, an input means for receiving input from the user, and a position detection means for detecting the current position. There,
A route information storage means for storing the route information of the garbage truck's garbage collection route,
An unloading place information storage means for storing the location information of the unloading place for unloading garbage trucks, and a unloading place information storage means.
A map display means for displaying a map image around the current position detected by the position detection means and a mark indicating the current position on the screen of the display.
A garbage collection route guidance means that displays the garbage collection route stored in the route information storage means on the map image and provides route guidance.
When the unloading withdrawal instruction is input from the input means, the current position detected by the position detecting means is set as the leaving position, and the position from the leaving position to the position of the unloading place stored in the unloading place information storage means is set. The unloading guidance route, which is the route on the map of the above, is calculated, and the unloading guidance route is displayed on the map image to provide route guidance.
When a return instruction is input by the input means, the return position is set to the return position or the position of the first dust station after the departure position on the dust collection path, and the current position detected by the position detection means is used. The return guidance route, which is a route on the map to the return position, is calculated, the return guidance route is displayed on the map image to provide route guidance, and the current position detected by the position detecting means is the return position. A garbage collection route navigation system comprising: a route return processing means for switching to route guidance by the garbage collection route guidance means upon reaching. When the return position on the dust collection path is designated by the input from the input means, the route return processing means is from the current position detected by the position detection means to the designated return position. When the return guidance route on the map is calculated, the return guidance route is displayed on the map image to provide route guidance, and the current position detected by the position detecting means reaches the return position, the return position and thereafter The garbage collection route navigation system according to claim 1, wherein the garbage collection route is displayed and switched to route guidance by the garbage collection route guidance means. When an emergency departure instruction is input from the input means, the current position detected by the position detecting means is set as the departure position, and then a specific point on the dust collection path input by the input means or the dust collection. The position of the first garbage station after the departure position among the garbage stations on the route is set as the return position, and the route from the departure position to the return position is a route on the map, which is different from the garbage collection route. When the emergency departure route, which is a route, is calculated, the emergency departure route is displayed on the map image to guide the route, and the current position detected by the position detecting means reaches the return position, the dust collection route is obtained. The garbage collection route navigation system according to claim 1 or 2, further comprising an emergency exit processing means for switching to route guidance by a guidance means. The vehicle-mounted terminal according to any one of claims 1 to 3 is loaded and executed by a vehicle-mounted terminal including a display, an input means for receiving input from a user, and a position detecting means for detecting a current position. A program characterized by functioning as a garbage collection route navigation system described in Kaichi.

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