JP2000113380A - Od specification type automatic telephone guidance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide traffic information on passing places and passing lines by inputting the point numbers of a start point and an end point once by a user as to the automatic telephone guidance of traffic information. SOLUTION: This automatic telephone guidance device for road information stores traffic state information by lines of roads in its central processor 1. An OD specification type document/voice editing device 2 finds all routes between the start point and end point and all lines included in the routes according to start-point information and end-point information. According to priority based upon the volume of traffic and a necessary passage time, the traffic state information on the lines in the respective routes is selected to edit a guidance sentence. The guidance sentence is generated by addition in the order of the priority of traffic state information so that the length of the guidance sentence is in a range of a specific time and speech elements are combined according to the guidance sentence. A voice answering device 3 sends the guidance sentence in voice to a telephone line 4. A user can hear the traffic information on the routes from the start point to the end point at a maximum within the range of a certain time by performing push-button operation once.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an OD-designated automatic telephone guidance system, and more particularly to an OD-designated automatic telephone guidance system for providing road information on a route on a route according to designation of only a departure point and an arrival point. About.

[0002]

2. Description of the Related Art One of road information providing systems calls a guidance center with a touch phone, specifies a route,
Some ask for road information on the specified route. For example, it is possible to hear the traffic information of a certain expressway as a whole or to hear only the information of a designated route. When it is desired to hear the traffic information of a plurality of routes, after the guidance of one route is completed, the next route is designated and the traffic information of the route is heard. For example, in the case of specifying a route, when hearing traffic information from point A to point B on a route different from point A, information on one route can be heard by performing a plurality of route specifying operations. Depending on traffic conditions, it may be necessary to ask for information on another route.

FIG. 4 is a configuration diagram of a conventional road information providing device. In FIG. 4, an automatic answering telephone central unit 5 is a means for selecting and editing event information using a traffic volume as an index. The event is information on an event such as an accident, construction, traffic congestion, etc. in a format necessary for creating a provided message. The telephone answering device 9 is a device that provides the event information selected and edited by the automatic answering telephone central device 5 to the user via a telephone line. The information exchange processing device 6 is a device that collects road information and organizes it as event information. The man-machine device 7 is used by an operator to manually input an event or check a message. The console 8 allows the operator to input voice,
This is an instruction to start / stop transmission.

FIG. 5 is a flowchart showing a simple operation of guidance by a conventional telephone answering apparatus. The user repeats the operation of inputting a line number for each line, listening to road information guidance for that line, and specifying the next line and listening to the next guidance as necessary.

[0005] The operation of the conventional road information providing device will be described with reference to FIGS. 4 and 5. When the user makes a call to the information center with a touch phone, the telephone answering device 9 sends out voice guidance urging the user to input a route number to be used. In accordance with the voice guidance, the user specifies the number of the route to be used with the push button.

When the automatic answering telephone central unit 5 receives the line number from the telephone answering unit 9, it requests the information exchange processing unit 6 for event information of the line. When event information such as traffic jams and accidents is transferred from the information exchange processing device 6 or the man-machine device 7 to the automatic answering telephone central device 5,
The automatic answering telephone central unit 5 selects which event to adopt from these events, and edits the guidance text based on the content of the selected event. This sentence is configured by combining words and sentences registered in the hard disk in advance.

After the text has been edited, the analysis and synthesis digital voice data corresponding to each word or sentence are combined,
Create a message audio. Digital voice data for analysis and synthesis corresponding to each word or sentence is registered in the hard disk in advance. The telephone answering device 9 converts the digital voice of the message into analog data and sends it to the telephone line.

The guide time of the road information providing device is generally
Since it is limited to about 120 seconds, the number of events that can be guided is also limited. It is impossible to guide every event that has occurred on the road. Therefore, events that have a large effect on the traveling vehicle are to be preferentially provided. Hereinafter, a method of selecting an event to be guided will be described.

The selection of an event is performed by a selection order table. In this table, the contents of the event and the section in which the event has occurred are registered. Here, the section is the minimum unit on the route when performing traffic congestion determination and event registration. The degree to which the content of the event affects the driving of the vehicle, and the extent to which the location of the event is related to the user who hears the guidance.
The provision priority of each event is determined by a combination of the two parameters. The event selection priority is determined by a two-dimensional array of the event evaluation value and the evaluation value of the event occurrence point.

The event evaluation value includes an event priority indicating the type and content of an event such as a traffic jam or an accident, an event relevance indicating a degree of relevance to another event, and detailed information input from the man-machine device 7. Is calculated based on the three elements of the degree of additional detailed information depending on the presence or absence of the information.

The evaluation value of the event occurrence point is calculated based on the traffic volume for each route / direction or whether it is on a designated route. Event occurrence points are classified into designated routes, related routes, and other engine routes, and the evaluation value is increased in this order. Using the average daily traffic volume for all routes / directions as an index, the evaluation value of an event occurring on a route with a large traffic volume is increased. The traffic volume for each target route / direction is statistically investigated in advance and registered in a table.

The final selection priority is determined from the combination of the event evaluation value calculated in this way and the evaluation value of the event occurrence point.

[0013]

However, in the conventional automatic telephone guidance system, only one road information can be heard at a time. When a user travels through a plurality of routes from the start point to the end point, the user has to perform a plurality of operations for each route in order to hear information on each route. For example, when passing through three routes from the starting point to the end point, to hear information on the three routes,
Had to be operated several times. Furthermore, if you want to hear traffic information on four or more routes, you need to make another call. As described above, there is a problem that the operation is complicated when listening to the traffic information guidance of the route passing through a plurality of routes.

[0014] The present invention solves the above-mentioned conventional problems, and accepts the input of a start and end point number from a user in automatic telephone guidance and designates the start point and the end point once, so that the transit points of a plurality of routes can be determined. The purpose is to provide traffic information on transit routes.

[0015]

In order to solve the above-mentioned problems, according to the present invention, an OD-designated automatic telephone guidance apparatus is provided with means for storing traffic condition information for each road line, start point information and end point information. Means for obtaining all the routes between the start point and the end point based on the above, means for obtaining all the routes included in the route, means for obtaining the traffic volume of each route, means for obtaining the required travel time of each route, Means for calculating the required travel time, means for selecting the traffic condition information of the route on each route according to the priority based on the traffic volume and required travel time, and means for editing the guidance text, and means for combining speech segments according to the guidance text And means for transmitting the guidance text by voice to the telephone line. With this configuration, it is possible to hear traffic information from the start point to the end point with a single operation.

Further, a means is provided for creating a guide message by sequentially adding routes and traffic state information having the highest priority within a range in which the length of the guide message is within a predetermined time. With this configuration, it is possible to provide as much information with a high priority as possible within a certain period of time.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION
Means for storing traffic state information for each route of the road, means for obtaining all routes between the start point and the end point based on the start point information and end point information, means for obtaining all the routes included in each of the routes, Means for determining the traffic volume of the route, means for determining the required travel time of each route, means for determining the required travel time of each route, and routes on each of the routes according to the priority based on the traffic volume and required travel time OD-designated automatic telephone guidance, comprising: means for selecting traffic condition information to edit guidance text; means for combining speech segments according to the guidance text; and means for transmitting the guidance text to a telephone line by voice. It is a device and has the effect of allowing all route information of a route to be heard with a single operation.

The second aspect of the present invention is the first aspect of the present invention.
The above-mentioned OD-designated automatic telephone guide device is provided with means for adding a route and traffic condition information in descending order of priority within a range in which the length of the guide text is within a predetermined time to create a guide text. This has the effect that more information can be provided within a certain period of time.

According to a third aspect of the present invention, traffic state information for each road line is stored, all routes between the start point and the end point are obtained based on the start point information and the end point information, and the route is included in each of the routes. All the routes to be obtained, the traffic volume and the required travel time of each of the routes, the required travel time of each of the routes,
According to the priority based on the traffic volume and the required time, the traffic condition information of the route on each of the routes is selected, the guidance text is edited, speech units are combined according to the guidance text, and the guidance text is voiced to the telephone line. This is an OD designation type automatic telephone guidance method to be transmitted, and has an effect of allowing all route information of a route to be heard with a single operation.

The invention according to claim 4 of the present invention is the invention according to claim 3.
In the OD-designated automatic telephone guidance method described above, a guidance message is created by sequentially adding routes and traffic state information having a higher priority order within a range in which the length of the guidance message is within a predetermined time. Has the effect of providing more information.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described in detail with reference to FIG.

(Embodiment) In an embodiment of the present invention, all routes between the start point and the end point and all routes included in the route are obtained based on the start point information and the end point information, and the traffic volume and the traffic This is an OD-designated automatic telephone guidance device that selects traffic condition information of a route on each route according to a priority order based on time, edits a guidance text, and sends the guidance text to a telephone line by voice.

FIG. 1 is a functional block diagram of an automatic telephone guide apparatus of an OD designation type according to an embodiment of the present invention. In FIG. 1, a central processing unit 1 is a device that collects and holds route data and event data. The OD designation type sentence / voice editing device 2 is a device that receives a departure place and a destination, obtains a route and a route, and edits and outputs guidance information. The voice response device 3 is a device that converts guidance information into a voice signal.
The telephone line 4 is a public telephone line. FIG. 2 is an operation flowchart of the OD-designated automatic telephone guidance device according to the embodiment of the present invention. FIG. 3 is a route map of an expressway.

Next, the operation of the OD-designated automatic telephone guidance apparatus according to the embodiment of the present invention configured as described above will be described. In the case of a large-scale expressway with a long extension distance, it is complicated to provide identification numbers for all the entrances and exits, so a plurality of entrances are collectively assigned to one zone number. For small expressways, zone numbers are assigned to all entrances and exits. In the case of a large-scale expressway, the size of a zone is determined for a point that can be selected as a departure place or an arrival place in consideration of traffic volume and the like. For entrances and exits where the number of users is particularly large, one zone constitutes one zone. In a section with few users and a small traffic volume, three to five points are collectively regarded as one zone.

OD (Origin: Departure point)
The method of specifying (ion: (arrival place)) will be described with reference to FIG. An example of an operation method and information provision will be described by taking as an example a case where the departure place is point A and the arrival place is point B. In the case of OD designation, information of a plurality of routes to the destination is provided by designating the set of the departure place and the destination once. Which route information is provided depends on the priority of the provided event.

When the user dials the service center, the voice response device 3 displays, "This is the XX Expressway. I will inform you of the road information to the destination to be used. Enter the number of the departure place. Please, please. "
Is sent out. The user follows the voice guidance and inputs the zone number including the departure place. Specify the zone number of the departure place to be used with the push button.
For example, the zone number of the point A of the departure place is input as “0312 #” from the touch phone. Then, there is a guidance of "Please input the number of the destination. Pip", and specify the destination as the end point. For example, the zone number of the point B is input as “0621 #”.

When the information of the start point and the end point is received from the voice response device 3, the OD designation type sentence / voice editing device 2 obtains all the paths from the start point to the end point. If there are multiple routes, ask for them all. For example, line a → line c → line b,
Find line a → line d → line b. The number of paths is at least one, and at most about ten.

The OD designation type sentence / speech editing device 2 refers to the data of the central processing unit 1 to obtain the traffic volume and the required time for each route of each route.

For the route, a guidance sentence is formed according to the traffic volume, the required time of passage, and the event priority. The method of determining the priority of the event is the same as that of the conventional device. Based on the guidance sentence, the speech units are combined into a speech signal. If the time of the guide text is shorter than the predetermined time, the required time of travel and the event information of the route with the next highest priority are added. As a result, for example, the following guide text is created.

"I will inform you about the information from XX Expressway A point to B point as of 1:20 pm. It is a notice of the time required. It takes about an hour.It is a notice of a road obstacle.There is a falling object at point C on Route c.
One obstacle is regulated for this obstacle. Be careful when driving. It is news of traffic jam. There is a traffic jam of about 1 km with the d point D at the head. As mentioned above, we announced from XX Expressway. This guidance message is transmitted from the voice response device 3 to the telephone line 4.

As described above, in the embodiment of the present invention,
The OD-specified automatic telephone guidance device obtains all routes between the start point and the end point based on the start point information and the end point information and all the routes included in the route, and determines each route according to the priority based on the traffic volume and the time required for passage. Edit the guidance text by selecting the traffic status information of the route on the route, create the guidance text by adding traffic status information in order from the highest priority as long as the length of the guidance text is within the predetermined time, and voice Since the information is sent to the telephone line, it is possible to hear the traffic information of all the routes on the route at the maximum with a single operation.

[0032]

As described above, according to the present invention, the OD-designated automatic telephone guidance device is provided with a means for storing traffic condition information for each road route, and a means for storing the traffic information between the start point and the end point based on the start point information and the end point information. Means for obtaining all the routes of each route, means for obtaining all the routes included in each route, means for obtaining the traffic volume of each route, means for obtaining the required travel time of each route, and means for obtaining the required travel time of each route Means for selecting the traffic condition information of the route on each route according to the priority based on the traffic volume and the required time for travel, editing the guidance text, combining the speech units according to the guidance text, and Since the system is provided with the means for sending to the telephone line, the operation of the user becomes simple and easy to use, and the effect that the road information guidance system becomes more convenient is obtained.

In addition, since a means for creating a guide message by sequentially adding routes and traffic condition information having a higher priority order within a range in which the length of the guide message is within a predetermined time is provided, the maximum number of operations can be achieved by one operation. The effect of being able to hear traffic information is obtained.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of an OD designation type automatic telephone guidance device according to an embodiment of the present invention;

FIG. 2 is an operation flowchart of an OD-designated automatic telephone guidance device according to an embodiment of the present invention;

FIG. 3 is a route map used in the OD designation type automatic telephone guidance device according to the embodiment of the present invention;

FIG. 4 is a functional block diagram of a conventional automatic telephone guidance device,

FIG. 5 is an operation flowchart of a conventional automatic telephone guidance device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central processing unit 2 OD designation type sentence / voice editing device 3 Voice response device 4 Telephone line 5 Automatic answering telephone central device 6 Information exchange processing device 7 Man-machine device 8 Operation console 9 Telephone response device

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Tokio Chiba 4-3-1 Tsunashimahigashi, Kohoku-ku, Yokohama-shi, Kanagawa F-term (reference) 5H180 AA01 BB05 EE01 FF01 FF13 FF25 5K024 AA76 BB03 BB04 CC09 CC11 DD01 DD02 EE01 FF06 GG10 9A001 BB02 BB03 BB04 CC03 DD10 FF03 GG01 HH18 JJ33 JJ72 KK56 KK62

Claims (4)

[Claims] 1. Means for storing traffic state information for each road route, means for obtaining all routes between a start point and an end point based on start point information and end point information, and obtaining all routes included in each of the routes Means, means for determining the traffic volume of each route, means for determining the required travel time of each route, means for determining the required travel time of each route, and the priority according to the traffic volume and the required travel time. A means for selecting a traffic condition information of a route on each route to edit a guidance sentence, a means for combining speech units according to the guidance sentence, and a means for sending the guidance sentence to a telephone line by voice. An automatic telephone guide device designated by OD. 2. A means for creating a guide message by sequentially adding routes and traffic condition information having a higher priority within a range in which the length of the guide message is within a predetermined time. OD designation type automatic telephone guidance device. 3. storing traffic condition information for each road line;
Find all routes between the start point and the end point based on the start point information and the end point information, find all the routes included in each of the routes,
The traffic volume and travel time of each route are determined, the travel time of each route is determined, the traffic state information of the route on each route is selected according to the priority based on the traffic volume and the travel time, and the guidance text is selected. OD-designated automatic telephone guidance method, comprising editing voice guidance, combining speech segments in accordance with the guidance text, and transmitting the guidance text by voice to a telephone line. 4. The OD designation type according to claim 3, wherein the guide message is created by adding the route and the traffic condition information in order of the highest priority within a range in which the length of the guide message is within a predetermined time. Automatic telephone guidance method.