JPH04276900A - Automatic broadcasting processor for emergency car traveling - Google Patents

Abstract

PURPOSE:To exclude other obstacle vehicles and to shorten a period of time taken for arrival at the field by broadcasting traveling of a fire fighting car, ambulance car, or the like in advance using a speaker automatically selected in accordance with a road traveling route. CONSTITUTION:A main speaker section 19 and subspeaker section 20 have speakers laid out along roads through which cars for emergency such as fire fighting car, ambulance car, or the like. In case an affair occurs, a computer 10 actuates the optimum path selection processing section 11 to read out road map information 14, and based on attached information for roads or road congestion information 15, the optimum path selection processing section 11 selects a path with a large degree of traveling ease. A speaker group selection processing section 12 selects a speaker group in accordance with the traveling path, an automatic broadcasting processing section 13 automatically broadcasts to a selected speaker group via an audio composite unit 17 and sending unit 18 in advance that emergency cars will travel relevant roads.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an automatic broadcast processing device for emergency vehicle traffic, which automatically broadcasts in advance the traffic of emergency vehicles such as fire engines and ambulances, thereby enabling early arrival at the scene. It is something.

[0002] In recent years, there has been a trend toward the introduction of computer-based disaster prevention systems in cities, where city road maps are stored in computers to determine the location of the scene, confirm the location of water faucets, organize a system, confirm the location of hospitals, etc. Systems that can do this in a few seconds are being introduced. However, even if fire engines and ambulances can be dispatched more quickly, if the arrival time at the scene is delayed due to obstructions such as on-street parking, the effectiveness of this expensive system will be halved. It is desirable to have a means to quickly eliminate obstacles that impede travel to the site.

0003

[Background Art] Conventionally, when a fire truck or an ambulance is dispatched, the siren on the vehicle sounds and, if necessary, a message is broadcast through a speaker mounted on the vehicle to encourage people to clear the road for the vehicle to pass. I'm trying to rush to the scene.

0004

[Problems to be Solved by the Invention] When a fire truck or an ambulance travels on a road to carry out its duties, if there is a car parked on the road, especially on a narrow road, the traveling of the fire truck or ambulance is obstructed. However, in recent years, the proliferation of automobiles, a lack of road maintenance, and a lack of parking lots have combined to make it difficult to eliminate on-street parking and always ensure routes for fire engines and ambulances. Due to reasons such as lack of land in cities,
It is difficult to expect an increase in the number of roads and parking lots for the time being, and it is difficult to change the mindset of drivers who want to park for free as close to their final destination as possible.

[0005] The present invention aims to solve the above-mentioned problems, and makes it possible to quickly remove vehicles parked on the route of the emergency vehicle and obstructing its travel when the fire engine or ambulance is dispatched. It is intended to be.

[0006]

[Means for Solving the Problems] FIG. 1 is a diagram showing the basic configuration of the present invention. In FIG. 1, 10 is a computer consisting of a CPU and memory, 11 is an optimal route selection processing unit, and 12
is a speaker group selection processing unit, 13 is an automatic broadcast processing unit, 1
4 is road map information stored in an external storage device, 15
16 is an input/output device such as a display/keyboard, 17 is a speech synthesizer that performs speech synthesis, 18 is a transmitter that outputs a signal including an audio signal, 19a, 19b, ... represents a main speaker section, and 20a, 20b, ... represent a sub speaker section.

The computer 10 is a processing device installed in a disaster prevention center such as a fire department. Main speaker section 19
a, 19b,..., sub speaker sections 20a, 20b,...
The system has speakers placed at certain intervals along the road used by emergency vehicles such as fire trucks and ambulances.

[0008] When a report is received due to the occurrence of an incident, the computer 10
Then, the optimal route selection processing section 11 is operated. The optimal route selection processing unit 11 reads the road map information 14 and selects several routes from the departure point to the destination of the emergency vehicle.
The process calculates the degree of travelability of the road based on at least road incidental information such as distance and current road congestion information 15, and selects a route with a high degree of travelability.

The speaker group selection processing section 12 performs a process of selecting one or more speaker groups installed on the roadside according to the road travel route of the emergency vehicle from its departure point to its destination.

[0010] The automatic broadcasting processing unit 13 sends a message to the speaker group selected by the speaker group selection processing unit 12 via a voice synthesizer 17 and a transmitting device 18 to notify the speaker group that an emergency vehicle will pass by wire or wirelessly. This process performs automatic broadcasting.

[0011] Speaker devices arranged along the road are grouped, for example, by road block. Each group consists of a main speaker section 19 and several sub-speaker sections 20. Each main speaker section 19 is given a unique identification code in the system, and a means for determining the identification code is provided.

[0012] The automatic broadcast processing unit 13, together with the broadcast audio,
Output the identification code of the main speaker unit 19 from which you want to output audio. The main speaker unit 19 judges the identification code to determine whether or not its own speaker group has been selected. If it has been selected, the main speaker unit 19 outputs audio through the speaker and also outputs sound to the sub speaker unit 20 belonging to the own speaker group. Output broadcast audio. Each sub speaker section 20 is
Sound is output based on a transmission signal from the main speaker section 19 or the sub-speaker section 20 at the previous stage.

[0013]

[Operation] In the present invention, when a fire engine or an ambulance is dispatched, the optimal route to travel is determined, and a roadside speaker along the route is used to announce, for example, "A fire engine (ambulance) is passing. A warning such as "Please move out of the way immediately." will be automatically broadcast.

[0014]Therefore, there is plenty of time between the broadcast and when emergency vehicles actually pass through various locations on the route, and vehicles parked on the street that may obstruct traffic can be moved in advance. Compared to the case where emergency vehicles broadcast while driving, it is possible to drive more smoothly to the location of the fire or emergency recipient.

The driving route to the site may be specified by a human using a pointing device such as a mouse from a display such as a map, but the optimum route may be automatically determined by the computer 10 based on information such as distance and road congestion information 15. If selected, it will be possible to arrive at the site in a shorter time.

Furthermore, if the speakers to be broadcast are grouped and each group is composed of the main speaker section 19 and a plurality of sub-speaker sections 20, selection control of the speakers to be broadcast becomes easy, and the sub-speaker sections 20 This makes it possible to reduce the amount of hardware required.

[0017]

Embodiment FIG. 2 shows an example of a system configuration according to an embodiment of the present invention. In FIG. 2, the same symbols as in FIG. 1 correspond to those shown in FIG. 30 is a disaster prevention center such as a fire station; 31 is an external storage device that stores road map information, etc.;
32 is a communication control device, 33 is an antenna installed on the roof of the disaster prevention center 30, 34 is an example of displaying a driving route to the input/output device 16, and 35 is a road equipped with a computer that updates and outputs road congestion information, etc. Represents an information center.

The computer 10 successively receives and manages road congestion information from the road information center 35 via the communication control device 32. When a report is received due to the occurrence of an incident such as a fire, the computer 10 transmits information about the scene and dispatch location to the input/output device 1.
6 and selects the road with the shortest possible distance and least traffic congestion as the optimal route.

When the optimal route is determined, the map and route are displayed on the display of the input/output device 16, as shown in display example 34 shown in FIG. .

[0020] Furthermore, a group of speakers installed on the streets along the determined optimal route is selected, and the computer 10 outputs a sound warning of the passage of an emergency vehicle via the speech synthesizer 17. The output is transmitted from the antenna 33 installed on the roof of the disaster prevention center 30 to the main speaker section 1.
9, from the main speaker section 19 to the sub speaker section 20, and then broadcast.

The main speaker section 19 and each sub-speaker section 20 are arranged on the roadside at intervals of 50 to 100 m. The main speaker section 19 is located at one of the road blocks.
It plays the role of selectively controlling the reception of information to speakers in the group. In this example, the communication method between the main speaker section 19 and the sub speaker section 20 is 50G, which is easy to install.
It uses a Hz wireless system. The computer 10 simultaneously transmits the speaker block identification code and the audio, and the main speaker section 19 identifies the block and determines whether it should be broadcast. Note that it is also possible to configure part or all of it by wire.

The road congestion information obtained from the road information center 35 is managed in a data structure having the following contents, for example. Road name: ○○ street, between △△ intersection and ×× intersection Congestion degree: 1 = Heavy traffic jam ... (1 minute average distance between vehicles 1 m) 2 = Somewhat traffic jam ... (1 minute average distance between cars
5m) 3=Normal...(1 minute average distance between cars 10m) 4=Slightly light traffic...(1 minute average distance between cars 50)
m) 5=Less... (1 minute average inter-vehicle distance 100m) Measurement time: ○○ month × × day △△ hours □□ minutes Notes
：□□ Street, there are many detours due to construction.

[0023] The computer 10 refers to the above-mentioned road congestion information and determines an optimal route. The processing logic is as follows. ■ Select several routes that can reach the scene based on map information that includes the scene and the fire station (disaster prevention center). A route is expressed by a string of symbols that are associated in advance, with one unit being, for example, from one intersection to another. For example, A1 +A2
+B1 +B2 +B3 +C1 +C2 etc., A1
It is a sequence of symbols such as +D1 +D2 +B3 +E1.

[0024] Based on the factors corresponding to each symbol, calculations are performed according to a predetermined travelability function, and the route with the maximum travelability is determined. Specifically, consider the following as a factor of a function. x1: Number of lanes 1 to 4 x2: Congestion level 1 to 5 x3: Reciprocal of distance 1/Km x coefficient x4: Accident/
The degree of influence of the presence or absence of construction work is 0 to 1, and the travel ease function is, for example, F (xi) = x1 ×x2 ×x3 ×x4
Then, the route pattern with the maximum ΣF(xi) (where Σ is the sum of function values for the symbols included in each route pattern) is selected.

FIG. 3 shows a processing flowchart of an embodiment of the present invention. The explanation will be given below according to (a) to (h) shown in FIG.

(a) If there is a report of an incident,
Input the destination (site information) by inputting from a rough map or menu, or by inputting a place name. In this example, assume that a fire has occurred. (b) A map including the site and the fire department (disaster prevention center) is read from the external storage device 31 shown in FIG. 2 and displayed on the display of the input/output device 16. (c) Select multiple candidate routes from the fire station to the scene.

(d) Input road information (for example, number of lanes, distance) and road congestion information for each candidate route. It is also possible to store all or part of this information in advance in an external storage device of the computer and read it out using each of the plurality of routes as a key. (e) Calculate the travelability function described above for each route, and select the route with the maximum calculation result as the optimal route. (f) Display the optimal route on the display. You can also print it out or fax it to the fire truck driver if necessary.
etc. to send it.

(g) Select a group of speakers to be automatically broadcast from road blocks on the optimal route. (h) Transmit the identification code of the selected speaker group and a broadcast sound such as ``A fire truck is passing by. Vehicles parked on the road should immediately move out of the way.'' by wire or wireless. Send.

FIG. 4 shows an example of a signal format of transmission information according to an embodiment of the present invention. The disaster prevention center 30 sends the identification code assigned to each main speaker section 19 and the broadcast sound to the main speaker section 19. This identification code may be one that identifies a road block, or may be used to identify a plurality of main speaker units 1 by, for example, a flag pattern.
It may also be something that identifies 9. Only broadcast audio is sent from the main speaker section 19 to the sub speaker section 20.

FIG. 5 is a block diagram of a main speaker section according to an embodiment of the present invention. Receiving antenna 50
The signal received by is amplified by the reception amplification section 51,
The detection section 52 detects the received signal using 50 GHz radio waves. Then, the detection result is sent to the code identification section 53. The code identification unit 53 inspects the identification code in the received signal and determines whether it is for its own device.

If the identification code specifies the device itself, the code identification section 53 turns on the gate section 54 to allow subsequent broadcast audio signals to pass through. If the device itself is not specified, the gate section 54 is kept in a blocked state. The broadcast audio signal that has passed through the gate section 54 is transmitted to the audio output amplification section 55.
and output from the speaker 56. Further, the broadcast audio signal is modulated by the modulation section 57, amplified by the transmission amplification section 58, and transmitted from the transmission antenna 59 to the subordinate sub-speaker section 20.

FIG. 6 is a block diagram of a sub-speaker section according to an embodiment of the present invention. The signal received by the reception antenna 60 is amplified by the reception amplification section 61,
The detection unit 62 detects broadcast audio using 0 GHz radio waves. The detected broadcast audio signal is sent to the audio output amplification section 6.
3 and output from the speaker 64. Further, the broadcast audio signal is modulated by a modulation section 65, amplified by a transmission amplification section 66, and transmitted from a transmission antenna 67 to the next sub-speaker section 20.

FIG. 7 shows a block diagram of the configuration of another embodiment in which broadcasting is performed by cable. The code of the audio information output by the computer 10 is converted into an audio signal by the audio synthesizer 17. This audio signal is amplified by the output amplifier 70 and sent from the branching device 71 to the main speaker section 19 through a dedicated audio line (wired). The main speaker section 19, the sub-speaker section 20, and each sub-speaker section 20 are connected using, for example, a coaxial cable.

FIG. 8 shows a time chart of one embodiment of the present invention. When a report of an incident is received as shown in FIG. 8(a), a dispatch system is immediately established and a travel route is established using the computer 10, as shown in FIG. 8(b). Once the travel route has been established, a fire engine (ambulance) is dispatched (Figure 8 (c)), and at the same time a warning is broadcast to speakers along the route (Figure 8 (d)). Therefore, the cars parked on the driving route are shown in (e) in Figure 8.
As shown in Figure 2, sufficient preparation time can be taken depending on the distance from the departure point, and the vehicle can be moved to a location out of the way before the fire engine (ambulance) actually arrives.

[0035]

[Effect of the invention] As explained above, according to the present invention,
The traffic of emergency vehicles such as fire trucks and ambulances is automatically announced in advance by a speaker that is automatically selected according to the vehicle's road route, so other vehicles that may get in the way can be eliminated before the vehicle arrives at the scene. It becomes possible to shorten the time.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle configuration of the present invention.

FIG. 2 is a diagram showing an example of a system configuration according to an embodiment of the present invention.

FIG. 3 is a processing flowchart of an embodiment of the present invention.

FIG. 4 is a diagram showing an example of a signal format of transmission information according to an embodiment of the present invention.

FIG. 5 is a configuration block diagram of a main speaker section according to an embodiment of the present invention.

FIG. 6 is a configuration block diagram of a sub-speaker section according to an embodiment of the present invention.

FIG. 7 is a block diagram illustrating the configuration of wired broadcasting according to another embodiment of the present invention.

FIG. 8 is a time chart of an embodiment of the present invention.

[Explanation of symbols]

10 Computer 11 Optimal route selection processing section 12 Speaker group selection processing section 13
Automatic broadcast processing unit 14 Road map information 15 Road congestion information 16 Input/output device 17 Speech synthesis device 18 Transmission device

Claims (3)

[Claims] Claim 1: A computer (10) comprising a computer (10) and a plurality of speakers (19, 20) arranged at certain intervals along a road used by emergency vehicles;
An automatic broadcast processing device for emergency vehicle traffic that outputs audio to speakers under the control of 0), which includes one or more speakers installed on the roadside according to the road travel route of the emergency vehicle from its departure point to its destination. The emergency vehicle is characterized by comprising a processing means (12) for selecting a group of speakers, and a processing means (13) for automatically broadcasting in advance by wire or wirelessly that an emergency vehicle will pass, to the selected speaker group. Automatic broadcast processing device for vehicle traffic. 2. The automatic broadcasting processing device for emergency vehicle traffic according to claim 1, in which road information is broadcast based on information including at least distance and road congestion information for several routes from the departure point to the destination of the emergency vehicle. The optimum route selection processing means (11) calculates the degree of travelability and selects a route with a high degree of travelability.
An automatic broadcast processing device for emergency vehicle traffic, characterized in that a group of speakers along the route determined by 1) is selected for automatic broadcasting. 3. In the automatic broadcast processing device for emergency vehicle traffic according to claim 1 or 2, the automatic broadcast processing means (13) transmits an identification code for identifying a group of speakers to be broadcast and broadcast audio. , each of the speaker groups has a main speaker section (19) having means for determining whether the own speaker group has been selected by determining an identification code, and a main speaker section (19) that transmits signals from the main speaker section (19) belonging to the own speaker group. An automatic broadcast processing device for emergency vehicle traffic, comprising one or more sub-speaker units (20) that output audio in response to signals.