JP2842019B2 - Highway radio system equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a highway radio system for broadcasting road conditions to a driver of a vehicle running on a highway or the like.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional configuration of a highway radio system. In FIG. 5, 1 is an information exchange processing device for collecting road information and organizing it as event information;
2 is a controller for controlling the system while communicating with other devices, creating messages and creating digital voice data based on the messages, and 3 is a message for an operator to manually input an event or confirm the created message. Editing machine 4 allows the operator to input audio or start broadcasting.
A console 5 for instructing a stop, 5 is a broadcast output switch for converting digital voice data created by the control device 2 to analog voice, analog-to-digital conversion of a real voice of an operator, and controlling voice broadcasting at a transmitter. Device, 6 is a transmitter for transmitting sound on the road, 7 is an auxiliary sign plate control device for controlling the auxiliary sign plate, 8 is a broadcast output switching device 5 and a transmitter 6
And a terminal board for relaying a signal between the terminal board and the terminal board.

[0003] When events related to road information such as road closures, traffic congestion, and accidents are transferred from the information exchange processing device 1 or the message editor 3 to the control device 2, the control device 2 determines which of these events. The adoption is selected for each broadcast point, and the text is edited based on the content of the selected event. Editing of a sentence is composed of words and sentences registered in the hard disk in advance. When the text has been edited, the control device 2 creates a message voice by combining the digital voice data for analysis and synthesis corresponding to each word or sentence. Digital voice data for analysis and synthesis corresponding to each word or sentence is registered in the hard disk in advance. Next, the control device 2 transfers the digital voice of the message to the broadcast output switching device 5. The broadcast output switching device 5 converts the sent message voice from digital to analog, and sends it to the transmitter 6. The transmitter 6 broadcasts the analog-converted sound to vehicles on the road.

Since the broadcasting time of highway radio is limited (typically 60 seconds), the number of events that can be broadcast is also subject to this limitation. Therefore, it is very important to preferentially provide events that have a great influence on the traveling vehicle.

[0005] The selection of the event will be described in detail. The selection of the event is performed according to a selection order table defined for each providing point. This table is defined by the content of the event and the road section where the event has occurred. For example, FIG. 6 shows a relationship between a broadcast point P and sections A to I of a road where an event occurs. Table 1 is a table showing the priority of event selection at broadcast point P.

[0006]

[Table 1]

[0007] In Table 1, two points are shown, namely, how much the contents of the event affect the driving of the car and how much the road sections A to I where the event occurred are related to the car listening to the highway radio. Considering the road section (A
To I) and the number of the order in which the contents of the event are provided as parameters. For example, 50
The km / h regulation has a higher priority than the traffic congestion that occurs in the section E. Similarly, the traffic congestion occurring in the section E has a higher priority than the traffic congestion occurring in the section H. The judgment criteria when creating this table were subjectively created based on the abundant experience so far of those who know the road conditions well.

[0008]

However, in the conventional method, only an experienced person can create an event priority table, and the basis for creating the table is ambiguous. It takes a lot of time, and there is a problem that the priority order corresponding to the length of the congestion cannot be defined in the table format.

The present invention has been made to solve such a conventional problem, and enables a person who is not experienced to determine the priority of event selection by a simple calculation and to easily create a table. It is.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention defines the degree of influence of the contents of each event on the travel time of one vehicle, and determines whether a vehicle at a broadcast point generates an event. The effect of the event on the car is quantified by taking into account the ratio of going to the spot, and the priority table of the event is determined based on the magnitude relationship of the numerical values.

[0011]

Therefore, according to the present invention, the selection priority of an event can be determined based on the magnitude relation of numerical values, so that the basis for the determination is clear and the priority table can be easily created even without an experienced person. is there.

[0012]

【Example】

First Embodiment FIG. 1 shows a flow of a method of determining a priority order according to a first embodiment of the present invention. In FIG. 1, first, the influence of an event on the traveling of one vehicle is calculated as a traveling time delay Ta (step S1). Delay T for each event
The calculation method of a is shown below.

1) Closed road infinity 2) Congestion Congestion length ÷ Speed during congestion (20 km) −Congestion length ÷ Normal traveling speed 3) Speed regulation Regulation length ÷ Regulation speed-Regulation length ÷ Normal traveling speed 4) Lane regulation (a) ) One lane is allowed. Regulation length ÷ (Normal running speed x 0.4)
−Regulation length 走 行 Normal traveling speed (b) Two-lane traffic allowed Regulation length ÷ (Normal traveling speed × 0.7)
−Regulation length ÷ Normal traveling speed 5) Chain regulation Regulation length ÷ (Normal traveling speed × 0.2)
−Regulation length ÷ Normal running speed 6) Accident, construction, breakdown car, fallen object No delay (calculate the delay at the stage accompanied by these restrictions). The congestion length is 10 km and 5 km as representative values, the regulation length is 5 km, and the chain regulation is 20 km as representative values. The normal traveling speed is set to 100 km / h. Table 2 shows the calculated values based on this.

[0014]

[Table 2]

Next, the ratio (hereinafter referred to as a shunt rate) of the vehicles that are listening to the broadcast traveling in the respective sections (A to I) is represented by [the total number of vehicles in each road section / the broadcast point. Total number of vehicles traveling in the vertical direction]. The shunt rate α can be obtained in advance as an accurate numerical value by examining the path of the traveling vehicle, and is prepared as a table (step S2). As an example, Table 3 shows the shunt ratio for FIG.

[0016]

[Table 3]

The overall delay time, which is the delay time of the entire traveling vehicle, is calculated by multiplying the delay time of the traveling time calculated based on the above by this shunt rate (step S3).
That is, the event selection priority table can be created objectively from the magnitude of the numerical value by arranging the event selection priority in the order of the greatest influence on the traveling vehicle (step S5) (step S5). Table 4 shows the priority order table created based on FIG. 6 and Table 3.

[0018]

[Table 4]

Second Embodiment FIG. 2 shows a flow of determining an event priority in a second embodiment of the present invention.

In FIG. 2, the type of the event is determined (step S6), and the delay Ta is calculated for each event (steps S7 to S12). However, this second
In the case of the embodiment of the present invention, if the event that occurs is traffic jam or regulation, the travel time delay Ta given to one traveling vehicle using the actual values instead of the representative values of the traffic jam length and regulation length Ta
Is calculated. Next, when a car passing through the broadcast point travels in the section where the event has occurred (shunt ratio) α is obtained from Table 1 (step S13). The product of α and Ta is obtained for all occurrence events (step S14), and it is determined whether or not there is another occurrence event (step S15). The priority of selection is determined (step S16).

Third Embodiment FIG. 3 shows the configuration of the proposed highway radio system. In FIG. 3, the same components as those in FIG. 5 are denoted by the same reference numerals, but a trakan device 9 is newly added to the conventional configuration. The trakan device 9 is traffic information detecting means for detecting the number of vehicles running, the speed, and the like, and is buried in a road. The information exchange processing device 1 receives the speed of the traveling vehicle from the trakan device 9 and transfers it to the control device 2 of the highway radio system together with the occurrence event. Control device 2
Determines the event selection priority using the running speed and the shunt rate α.

FIG. 4 is a flowchart showing the flow of determining the event selection priority in the third embodiment.
In FIG. 4, the type of the event is determined (step S1).
7) When the traffic is closed, Ta is set to infinity (step S18). However, when the traffic is restricted or congested, Ta is calculated based on the actually measured value of the traveling speed of the vehicle (steps S19 and S).
20). Steps S21 to S24 after Ta is calculated are the same as steps S13 to S16 in FIG. 2, and a description thereof will be omitted.

[0023]

According to the present invention, as is apparent from the above embodiment, the value of the shunt rate is statistically investigated by a route survey of a traveling vehicle, and this value is provided as a table, and each event has one event. By defining the effect on the travel time of the car as a delay time in the table and multiplying these two, it is possible to objectively obtain the event selection priority table as a numerical value and determine the priority even if you are not an experienced person It has the effect that it can easily cope with the length of traffic jam.

According to the present invention, the influence of an event on a traveling vehicle can be accurately determined by calculating the travel time delay applied to the traveling vehicle by using the length of the congestion length regulation as it is, instead of the representative value. Can be requested.

According to the present invention, when a traffic jam or a regulation event occurs, the travel time given to the traveling vehicle is calculated by using the traveling speed actually measured by the trakan device in the event occurrence section, thereby giving the traveling vehicle a delay. The effect of the event can be determined accurately.

[Brief description of the drawings]

FIG. 1 is a flowchart of a priority determination method according to a first embodiment of the present invention;

FIG. 2 is a flowchart of a priority determining method according to a second embodiment of the present invention;

FIG. 3 is a system configuration diagram of a third embodiment of the present invention.

FIG. 4 is a flowchart of a priority order determining method in FIG. 3;

FIG. 5 is a system configuration diagram of a conventional highway radio.

FIG. 6 is a diagram showing a relationship between a broadcast point and a road on which an event occurs.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Information exchange processing device 2 Control device 3 Message editing machine 4 Operation console 5 Broadcast switching device 6 Transmitter 7 Auxiliary sign board control device 8 Terminal board 9 Trakan device

Claims (3)

(57) [Claims] 1. A highway radio system apparatus for broadcasting traffic information on a road to a vehicle running on a road such as an expressway, wherein the type of event such as traffic regulation, traffic congestion, or closing of traffic on the road is determined for each vehicle. Means for calculating a delay time of a given traveling time, means for calculating a shunt rate of a vehicle traveling to each point on the road from a statistical value, and an event for each event type by multiplying the calculated lag time by the shunt rate. A highway radio system apparatus, comprising: means for calculating a separate delay time; and means for determining an event priority in descending order of the event-specific delay time and broadcasting the event to a vehicle in the order of the event having the highest priority. 2. The event priority is determined according to the influence of traffic congestion and the length of each event on the travel time of a vehicle due to the length of the regulation and the product of the shunt rate. Highway radio system equipment. 3. A method for determining an event priority based on a magnitude of a product of an influence on a traveling time of a vehicle and a shunt rate obtained by using an actual measured value of a traveling speed of a vehicle at a point where traffic congestion or regulation occurs. The highway radio system device according to claim 1, wherein