JP2005293465A - Safe travel support method and system, and on-vehicle management equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe travel support method and safe travel support system contributing to safe travel, and on-vehicle management equipment in the system. <P>SOLUTION: The system includes the on-vehicle management equipment 1 mounted on a vehicle and having position information acquiring means 4, 5 for acquiring position information indicating a present position of a vehicle and a communicating means 6 for transmitting the position information, and servers 13a, 13b for management installed in a management center 13 for transmitting specific road information from a communicating means 131, including the communicating means 131 for receiving the position information through a communication network 12, a storage means 133 for storing road information acquired from an external database 15, a road information generating means 132 for generating specific road information relating to the position information on the basis of the road information. The on-vehicle management equipment 1 receives the transmitted specific road information through the communication network 12 by the communicating means 6, and generates and outputs a safe travel instruction signal depending on the received specific road information. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a safe driving support method and a safe driving support system that support safe driving based on acquisition of information related to a road condition in which a vehicle is currently driving, and a vehicle-mounted management device that is used in the system.

  Conventionally, an in-vehicle management device equipped with a communication module can obtain various types of information by accessing a database outside the vehicle. Such an in-vehicle management device is disclosed in, for example, Japanese Patent Laid-Open No. 8-221694.

FIG. 7 is an overall configuration diagram of the in-vehicle management device disclosed in the above-mentioned publication. In this in-vehicle management device, the GPS antenna 31 and the GPS receiver 32 receive radio waves from GPS satellites and detect the current location of the vehicle. Further, using the mobile phone antenna 33, the mobile phone transceiver 34, and the modem 35, an information search DB on the telephone line (access to the database, traffic information in a predetermined area including the detected current location, weather information, The event information is selectively obtained, and the control device 37 causes the display device 38 to display the information obtained from the information search DB in accordance with an input instruction from the input device 36.
JP-A-8-221694

  However, since the above-mentioned in-vehicle management device simply displays traffic information near the current location, it is up to the driver only to determine how to drive the vehicle in response to the displayed traffic information. It is not certain if it will be safe to drive.

  On the other hand, there is a road information distribution system proposed by the applicant as Japanese Patent Application No. 2002-238532 as one method for acquiring information related to the road conditions of the vehicle currently traveling. This road information distribution system distributes road information generated at a management center based on information provided from a plurality of sensor vehicles to a sensor vehicle and a non-sensor vehicle that does not belong to the sensor vehicle. The communication terminal device mounted on the sensor vehicle functioning as the road information sensor transmits the acquired sensor information to the management center via the mobile phone packet communication network. The management center generates road information based on the received sensor information and the like, and this road information is sent to the sensor vehicle and the non-sensor vehicle via a mobile phone packet communication network or the Internet in response to a request from the communication terminal device side. To the side.

  Even in the above road information distribution system, road information is distributed, but it is not certain whether or not the vehicle can travel safely in accordance with the distributed road information.

  Accordingly, in view of the above-described conventional problems, the present invention provides a safe driving support method, a safe driving support system, and a safe driving support system that can contribute to safe driving by performing driving support on the basis of acquisition of information related to a road condition where the vehicle is currently driving. The object is to provide an in-vehicle management device used in the system.

  The safe driving support method according to the first aspect of the present invention is a safe driving support method for supporting safe driving based on the acquisition of road information related to the road conditions on which the vehicle is currently driving, and is mounted on the vehicle. In the management device, the position information indicating the current location of the vehicle is acquired and transmitted. In the management center, the transmitted position information is received, road information acquired from an external database is stored, and the stored information is stored. Generate and transmit specific road information related to the received location information based on road information, and receive and receive the specific road information transmitted from the management center in the in-vehicle management device A safe driving instruction signal corresponding to the specific road information is generated and output.

  A safe driving support method according to a second aspect of the present invention is a safe driving support method for supporting safe driving based on the acquisition of road information related to the road conditions on which the vehicle is currently driving, and is mounted on the vehicle. In the management device, the position information indicating the current location of the vehicle is acquired, the road information indicating the current road condition of the vehicle is acquired, and the acquired position information and the road information are transmitted and managed. In the center, the transmitted location information and the road information are received, the received road information is stored, and based on the stored road information, specific road information related to the received location information The in-vehicle management device receives the specific road information transmitted from the management center, and travels safely according to the received specific road information. And wherein the generating and outputting an instruction signal.

  According to a third aspect of the present invention, in the safe driving support method according to the first or second aspect, the in-vehicle management device further acquires vehicle driving state information related to a driving state of the vehicle, and the acquired vehicle driving state The safe driving instruction signal is generated and output based on the information and the received specific road information.

According to a fourth aspect of the present invention, in the safe driving support method according to the third aspect, the vehicle driving state information is at least one information of a driving speed, an engine speed, and an accelerator opening.
In the in-vehicle management device, at least one of the traveling speed, the engine speed, and the accelerator opening, and a speed threshold value corresponding to the at least one that is variable according to the received specific road information, an engine A rotation speed threshold value or an accelerator opening threshold value is compared, and at least one of the traveling speed, the engine rotation speed, and the accelerator opening amount is equal to or higher than the speed threshold value, the engine rotation speed threshold value, or the accelerator opening threshold value corresponding to the at least one. If it is, the safe driving instruction signal is generated.

  According to a fifth aspect of the present invention, in the safe traveling support method according to the fourth aspect, in the in-vehicle management device, at least one of the traveling speed, the engine speed, and the accelerator opening corresponds to the at least one. A warning message is generated and displayed as the safe driving instruction signal when the speed threshold value, the engine speed threshold value, or the accelerator opening threshold value is exceeded.

  A safe driving support system according to a sixth aspect of the present invention is a safe driving support system that supports safe driving based on the acquisition of road information relating to the road conditions on which the vehicle is currently driving, and is mounted on the vehicle. Management equipment, a vehicle-mounted management device having position information acquisition means for acquiring position information indicating the current location of the vehicle, and communication means for transmitting the acquired position information, and management installed in a management center A server for receiving the position information transmitted from the communication means via a communication network, a storage means for storing road information acquired from an external database, and a storage means stored in advance. Road information generating means for generating specific road information related to the received position information based on the road information that is received, A management server for transmitting from the communication means, wherein the in-vehicle management device receives the specific road information transmitted from the management server by the communication means via the communication network, and receives the specified A safe driving instruction signal corresponding to the road information is generated and output.

  A safe driving support system according to a seventh aspect of the present invention is a safe driving support system that supports safe driving based on the acquisition of road information relating to the road conditions on which the vehicle is currently driving, and is mounted on the vehicle. A position information acquisition unit for acquiring position information indicating a current location of the vehicle, a road information input unit for inputting road information indicating a road condition of the vehicle currently traveling, and the acquired position An in-vehicle management device having information and a communication means for transmitting the inputted road information, and a management server installed in a management center, wherein the position information and the road information transmitted from the communication means are Communication means received via a communication network, storage means for storing the received road information, and the received based on the road information stored in the storage means Road information generating means for generating specific road information related to position information, and including a management server for transmitting the generated specific road information from the communication means, The specific road information transmitted from a management server is received by the communication means via the communication network, and a safe driving instruction signal corresponding to the received specific road information is generated and output. To do.

  The invention according to claim 8 is the safe driving support system according to claim 6 or 7, wherein the in-vehicle management device acquires vehicle driving state information acquisition means for acquiring vehicle driving state information relating to a driving state of the vehicle. Safe driving instruction signal generating means for generating the safe driving instruction signal based on the vehicle driving state information and the received specific road information; safe driving signal output means for outputting the generated safe driving instruction signal; It further has these.

  According to a ninth aspect of the present invention, in the safe travel support system according to the eighth aspect, the vehicle travel state information is at least one of travel speed, engine speed, and accelerator opening, and the safe travel instruction signal The generation means 2 includes at least one of the travel speed, the engine speed, and the accelerator opening, and a speed threshold value corresponding to the at least one and an engine speed that are variable according to the received specific road information. A threshold value or an accelerator opening threshold value is compared, and at least one of the traveling speed, the engine speed, and the accelerator opening is equal to or higher than the speed threshold, the engine speed threshold, or the accelerator opening threshold corresponding to the at least one. If it is, the safe driving instruction signal is generated.

  According to a tenth aspect of the present invention, in the safe driving support system according to the ninth aspect, the safe driving instruction signal generating means is configured such that at least one of the driving speed, the engine speed, and the accelerator opening is set to the at least one. When the corresponding speed threshold value, engine speed threshold value or accelerator opening threshold value is exceeded, a warning message is generated as the safe driving instruction signal, and the safe driving signal output means displays the warning message. It is a means.

  An in-vehicle management device according to an eleventh aspect of the present invention is an in-vehicle management device that is used in a safe driving support system that supports safe driving based on acquisition of road information related to a road condition where the vehicle is currently driving from a management center. From the external database from the management center, which is a management device, transmits position information acquisition means for acquiring position information indicating the current location of the vehicle, and transmits the acquired position information and receives the transmitted position information. Communication means for receiving specific road information generated and transmitted in relation to the position information based on the acquired road information, and safety for generating a safe driving instruction signal according to the received specific road information It has a travel instruction signal generation means and a safe travel instruction signal output means for outputting the generated safe travel instruction signal.

  The in-vehicle management device according to the invention of claim 12 is used in a safe driving support system for supporting safe driving based on acquisition of road information related to a road condition where the vehicle is currently driving from a management center. Position information acquisition means for acquiring position information indicating the current location of the vehicle, road information input means for inputting road information indicating a road condition on which the vehicle is currently traveling, and the acquired position information. The road information that has been input and the specific information that is generated and transmitted in relation to the location information based on the road information from the management center that receives the location information and the road information that has been transmitted. Communication means for receiving road information, safe driving instruction signal generating means for generating a safe driving instruction signal corresponding to the received specific road information, and the generated safety And having a safe driving instruction signal output means for outputting the row instruction signal.

  A thirteenth aspect of the present invention is the in-vehicle management device according to the eleventh or twelfth aspect, further comprising vehicle traveling state information acquiring means for acquiring vehicle traveling state information relating to a traveling state of the vehicle, and generating the safe traveling instruction signal The means generates the safe travel instruction signal based on the acquired vehicle travel state information and the received specific road information.

  According to a fourteenth aspect of the present invention, in the in-vehicle management device according to the thirteenth aspect, the vehicle travel state information is at least one of travel speed, engine speed, and accelerator opening, and the safe travel instruction signal The generation means 2 includes at least one of the travel speed, the engine speed, and the accelerator opening, and a speed threshold value corresponding to the at least one and an engine speed that are variable according to the received specific road information. A threshold value or an accelerator opening threshold value is compared, and at least one of the traveling speed, the engine speed, and the accelerator opening is equal to or higher than the speed threshold, the engine speed threshold, or the accelerator opening threshold corresponding to the at least one. If it is, the safe driving instruction signal is generated.

  According to a fifteenth aspect of the present invention, in the in-vehicle management device according to the fourteenth aspect, the safe traveling instruction signal generating means is configured such that at least one of the traveling speed, the engine speed, and the accelerator opening is the at least one. When the corresponding speed threshold value, engine speed threshold value or accelerator opening threshold value is equal to or greater than the speed threshold value, a warning message is generated as the safe driving instruction signal, and the safe driving signal output means is configured to output the warning message. It is the display means which displays.

  According to the first, sixth, and eleventh aspects of the present invention, road information related to a road condition on which the vehicle is currently traveling is selectively acquired as specific road information from the road information acquired from an external database. By generating and outputting a safe travel instruction signal corresponding to the vehicle, it is possible to prompt the crew to travel safely. In particular, safe driving can be promoted in a situation where the road surface has deteriorated, leading to accident prevention.

  According to the second, seventh and twelfth aspects of the present invention, the road information related to the road conditions on which the vehicle is currently traveling is specified from a collection of road information input from an in-vehicle management device mounted on each vehicle. By selectively obtaining the road information and generating and outputting a safe driving instruction signal corresponding to the road condition, it is possible to prompt the crew to drive safely. In particular, safe driving can be promoted in a situation where the road surface has deteriorated, leading to accident prevention.

  According to the third, eighth and thirteenth aspects of the present invention, the safe travel instruction signal can be generated based on the vehicle travel state information relating to the travel state of the vehicle and the received specific road information.

  According to the inventions described in claims 4, 9 and 14, at least one of the traveling speed, the engine speed, and the accelerator opening is equal to or greater than the speed threshold corresponding to the at least one, the engine speed threshold, or the accelerator opening threshold. In this case, a safe driving instruction signal can be generated.

  According to the fifth, tenth and fifteenth aspects of the present invention, by providing a warning message to the crew member as a safe driving instruction signal, it becomes possible to give a safe driving instruction to the crew member in real time, which leads to accident prevention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a configuration diagram showing a first embodiment of a safe driving support system that implements a safe driving support method according to the present invention.

  In FIG. 1, the safe driving support system includes a vehicle management device 1 according to the present invention mounted on a vehicle (not shown) that communicates road information with a management center 13 via a communication network 12 such as the Internet. I do. The management center 13 is an ASP (Application Service Provider) or a company office. ASP is an operator that provides various services using a wide-area communication network such as the Internet, which is becoming popular in recent years. The ASP and company office are provided with an ASP server 13 a and a company office server 13 b as management servers connected to the communication network 12.

  The in-vehicle management device 1 includes a CPU 2, a communication unit 3, a GPS antenna 4, a GPS reception unit 5, a communication module 6, a memory 7, a display unit 8, and an operation unit 9.

  The CPU 2 functions as a control unit that performs overall control of the in-vehicle management device 1 and also functions as a safe travel instruction signal generation unit. The communication unit 3 functions as a vehicle running state information acquisition unit, and communicates with the sensor ECUs 11 in each part of the vehicle via a bus line 10 of an in-vehicle LAN (local area network). The sensor ECU 11 is for detecting a signal indicating a vehicle running state such as a vehicle running speed based on detection signals from various sensors such as a vehicle speed sensor (not shown) provided in each part of the vehicle.

  The GPS antenna 4 and the GPS receiver 5 function as position information acquisition means and receive radio waves from the GPS satellite 14. The communication module 6 functions as a communication unit and performs two-way communication with the management center 13 via the communication network 12. The memory 7 functions as a storage unit, and stores position information, time information, vehicle running state information, and road information acquired as described later. The memory 7 also stores an identification code of the in-vehicle management device 1. The display unit 8 functions as safe driving instruction signal output means, and includes an LED (liquid crystal display) or the like. The operation unit 9 includes various operation keys.

  As illustrated in FIG. 2, the management server includes a communication device 131, an information processing device 132, and a storage device 133.

  The communication device 131 functions as a communication unit, and includes a router and a DSU (digital line connection device). The information processing device 132 functions as a control unit that performs overall control of the management server and also functions as a road information generation unit, and includes a computer having a CPU, a RAM, and a ROM (not shown). The information processing device 132 performs a communication function with the in-vehicle management device 1, a road information generation processing function, and the like via the communication device 131. The storage device 133 functions as storage means, and stores a program file 133a, a road information database (DB) 133b, and a map information database (DB) 133c.

  The program file 133a includes communication control software that enables communication with the in-vehicle management device 1 and software for performing information processing in the information processing apparatus 132. The road information DB 133b has road information generated by totaling road information obtained from an external database such as the public institution server 15 via the communication network 12. The map information database 133c includes at least map information such as topography, roads, and place names of regions related to the present system. The map information database 133c may be an offline type provided by a DVD-ROM or the like, or an online type provided from a map information providing site connected to the Internet.

  Next, an outline of the operation of the safe driving support system having the above-described configuration will be described. By providing the communication module 6 in the in-vehicle management device 1, the safe driving support system enables two-way communication between the vehicle in which the in-vehicle management device 1 is mounted and the management center 13. In addition, by providing the in-vehicle management device 1 with the GPS antenna 4 and the GPS receiving unit 5, the position information indicating the position (latitude / longitude) and the traveling direction of the vehicle with the in-vehicle management device is acquired in real time and the management center. 13 can be transmitted.

  In the management server 13a or 13b of the management center 13, from the road information collected in advance via the communication network 12 from the external database such as the public institution server 15 or the like, the position information sent from the in-vehicle management device 1 is used. Based on this, specific road information related to the current location of the vehicle is generated, and the generated specific road information data is transmitted to the in-vehicle management device 1.

  The in-vehicle management device 1 receives specific road information transmitted from the management server 13a or 13b of the management center 13, and generates and outputs a safe driving instruction signal according to the content of the specific road information. .

  Next, the processing procedure and communication sequence of the above-described operation in the safe driving support system will be described with reference to FIG. FIG. 3 is a flowchart showing a processing procedure on the in-vehicle management device 1 side (vehicle side) and the management server 13a or 13b side (management center 13) side of the safe driving support system, and a communication sequence between them.

  The processing on the vehicle side is mainly performed under the control of the CPU 2, and first, position information is acquired (step S1). That is, when the observation time or sampling time according to a predetermined interval is reached, the in-vehicle management device 1 is mounted using the GPS signal received from the GPS satellite 14 by the GPS antenna 4 and the GPS receiver 5. Position information including the latitude / longitude of the current location of the vehicle in question and the traveling direction is acquired and stored in the memory 7.

  Next, a time signal included in the received GPS signal is also acquired and stored in the memory 7 in association with the position information acquired at that time (step S2). However, since the detection operation is performed according to a predetermined interval, it is possible to grasp the time even by using a timer or the like in the management center 13. Therefore, it is not always necessary to acquire the time information from the GPS signal, but if the time information is acquired from the GPS signal, the time at which the position information is acquired can be grasped more accurately.

  Next, vehicle running state information is acquired and stored in the memory 7 (step S3). The vehicle travel state information is, for example, a signal indicating the travel speed of the vehicle acquired by being received by the communication unit 3 from the sensor ECU 11 for the vehicle speed sensor via the in-vehicle LAN bus line 10. Next, the acquired position information and time information are read from the memory 7 together with the identification code of the in-vehicle management device 1 and transmitted from the communication module 6 (step S4). The transmitted position information, time information and identification code are received by the management center 13 via the communication network 12.

  Next, it is determined whether or not road information transmitted from the management center 13 is received (step S5). If no road information is received, the process is then terminated. If road information is received, a safe driving instruction signal is generated (step S6). Next, a safe driving signal is output to the display device 8 and displayed on the screen of the display device 8 (step S7), and then the process ends. The generation and output of the safe driving instruction signal will be described in detail later. The processes shown in steps S1 to S7 are repeatedly executed according to a predetermined interval unless there is a predetermined end trigger.

  On the other hand, in the management center side process, first, it is determined whether or not the position information, time information, and identification code transmitted from the in-vehicle management device 1 are received (step S11). If the answer is Yes, the process proceeds to step S12. If the answer is No, the process proceeds to step S14.

  In step S12, based on the received position information, time information and identification code, and road information stored in the storage device 133, the current location of the in-vehicle management device 1 having the received identification code is related. Specific road information is generated. The specific road information is generated as road surface deterioration information indicating a road surface deterioration state. The road surface deterioration information is, for example, information indicating the road surface deterioration state such as “Road surface freezing Level 2, travel speed 40 km / h restriction, latitude XXX, longitude △△△ (Tomei Expressway (Yoshida-Yaizu))”. , Information indicating a traveling speed limit, information indicating a position represented by latitude and longitude, information indicating a road section based on the above-described latitude and longitude, and the like.

  Next, the specific road information created in this way is updated and accumulated in the storage device 133 as a road information DB 133b. Next, the latest specific road information (that is, road surface deterioration information) is read from the storage device 133 (step S14), and then the read specific road information is transmitted from the communication device 131 via the communication network 12. Is transmitted to the in-vehicle management device 1 (step S15), and then the process ends.

  Next, returning to the flowchart shown in FIG. 3, the operations in steps S6 and S7 will be described in detail.

  The safe driving instruction signal generation process of step S6 is executed according to the flowchart of the subroutine shown in FIG. In FIG. 4, first, road information transmitted from the management center 13, that is, road surface deterioration information is acquired and stored in the memory 7 (step S61). Next, the speed threshold value is changed based on the acquired road surface deterioration information data (step S62). For example, if the road speed is good and the legal speed is 50 km / h, the speed threshold is a standard for restricting the driving speed and promoting safe driving according to the road surface deterioration state indicated by the road surface deterioration information. The speed value is variably set. The speed threshold value is set to a value lower than the legal travel speed. In this embodiment, for example, the speed threshold value is set to 40 km / h as a value corresponding to the road surface freezing level 2 of the road surface deterioration information.

  Next, the current traveling speed of the vehicle is read out as vehicle traveling state information data collected from the sensor ECU 11 which is the vehicle-mounted device (step S63). Next, it is determined whether or not the current traveling speed is equal to or higher than a speed threshold (that is, 40 km / h) (S64). If the answer to step S64 is Yes, a warning message that prompts deceleration to reduce the traveling speed to 40 km / h or less is generated and transmitted as a safe traveling instruction signal (step S65). To return.

  Returning to the flowchart shown in FIG. 3, when the safe travel instruction signal is generated as described above in step S6, the generated safe travel instruction signal (that is, a warning message for prompting deceleration) is then generated in step 7. Is supplied to the display device 8 and displayed on the screen of the display device 8.

  Therefore, the driver of the vehicle traveling on the Tomei Expressway (Yoshida to Yaizu) is prompted by the warning message displayed on the screen of the display device 8 to reduce the traveling speed of the vehicle to 40 km / h or less. And can travel safely on a frozen road surface.

  In addition, on the screen of the display device 8, the content of road surface deterioration information (that is, “road surface freezing Level 2, travel speed 40 km / h restriction, latitude XXX, longitude △△△ (Tomei Expressway (Yoshida- Yaizu)))) can also be displayed. In this case, the driver can know the cause of the warning message.

(Second Embodiment)
Next, a second embodiment in which the road information acquisition method is changed will be described. That is, the road information is acquired from an external database such as the public institution server 15 in the first embodiment described above. In the second embodiment, the road information is provided from the vehicle side on which the in-vehicle management device 1 is mounted. It is configured to be.

  FIG. 5 is a configuration diagram showing a second embodiment of the safe driving support system for implementing the safe driving support method according to the present invention. In FIG. 5, vehicles 100a to 100n are each equipped with a vehicle-mounted management device 1 and are traveling on public roads in various places. The operation unit 9 of the in-vehicle management device 1 is equipped with a road surface condition input key (not shown) that functions as road information input means. The road surface condition input key is composed of a plurality of keys each corresponding to various road surface deterioration situations such as road surface freezing and road surface rain, or a code for identifying the various road surface deterioration conditions described above, for example. It consists of keys to

  Therefore, when the crew member of each of the vehicles 100a to 100n inputs the road surface deterioration condition of the currently running road with the road surface condition input key, the road surface deterioration information indicating the road surface deterioration condition is obtained as the road information as the position information and the time information. And the identification code are transmitted to the management center 13 via the communication network 12. The management center 13 aggregates road information (road surface deterioration information) transmitted from the vehicles 100a to 100n, and creates a unique road information DB that is not public and has high real-time properties.

  Similarly to the vehicles 100a to 100n, the vehicle 200 equipped with the in-vehicle management device 1 receives road information (road surface deterioration information) transmitted from the management center 13 regarding the currently traveling road condition and receives the received road information ( A safe driving instruction signal corresponding to the road surface deterioration information) is generated and output to the display device 8.

  Therefore, the driver of the vehicle 200 can drive safely on the road surface that has been deteriorated by performing deceleration or the like when prompted by the safe driving instruction signal output to the display device 8.

  FIG. 6 is a flowchart showing a processing procedure on the in-vehicle management device 1 side and the management center 13 side of the safe driving support system according to the second embodiment, and a communication sequence between them. In the flowchart of FIG. 6, the same steps as those in the flowchart of FIG. 3 are denoted by the same step numbers.

  In the flowchart of FIG. 6, in the vehicle side processing, there is Step 3A between Step S3 and Step S4 of FIG. 3, where road surface deterioration information is acquired by the input operation of the road surface condition input key and stored in the memory 7. The Next, in step S4, the road surface deterioration information acquired in step S3 is transmitted in addition to the position information, time information, and identification code.

  In the management center side process, it is determined in step S11 whether the position information, time information, identification code, and road surface deterioration information transmitted from the in-vehicle management device 1 has been received. If the answer is Yes, then the process proceeds to step S12, and based on the received position information, time information, identification code and road surface deterioration information, the identification related to the current location of the in-vehicle management device 1 having the received identification code Road information is generated.

  As described above, road surface deterioration information of a location where the vehicle is currently traveling is acquired and transmitted to the management center 13 using the communication function in a plurality of vehicles equipped with the in-vehicle management device 1, and the management center 13 side stores those data. By collecting these, it is possible to independently create a road information DB having real-time characteristics from road information by a public institution. Then, specific road information is transmitted from the road information DB created in this way to the vehicle equipped with the in-vehicle management device 1, and a safe driving instruction signal is generated and output by the in-vehicle management device 1. By providing danger warnings (deceleration instructions, etc.) to the crew, it is possible to give safe driving instructions to the crew in real time, leading to accident prevention.

  As described above, the embodiment of the present invention has been described. However, the present invention is not limited to this, and various modifications and applications are possible.

  For example, road information is acquired from an external database in the first embodiment, and is acquired from the in-vehicle management device 1 in the second embodiment. The road information acquired from the management device 1 may be combined.

  In the above-described embodiment, the traveling speed is acquired as the sensor information. However, the present invention is not limited thereto, and similarly, the engine speed, accelerator opening, shift gear information, vehicle information that can be acquired from each sensor ECU 11 through the in-vehicle LAN connection. Other travel-related data such as heavy is also available. For example, at least one of travel speed, engine speed, and accelerator opening, and a speed threshold corresponding to at least one, an engine speed threshold, or an accelerator opening threshold that is varied according to the received specific road information And when at least one of the traveling speed, the engine speed, and the accelerator opening is equal to or greater than the speed threshold corresponding to at least one, the engine speed threshold, or the accelerator opening threshold, (Eg, a warning message) can be generated.

  In the above-described embodiment, the safe driving instruction signal is a warning message for prompting deceleration, but is not limited to this. For example, a warning message for prompting a downshift to 4th speed to 3rd speed, chain mounting, or the like. Other forms are possible.

  Further, the output of the safe driving instruction signal is not limited to the display on the screen of the display device 8, but may be a warning by LED display, a warning by voice output, or the like.

  Furthermore, when a deceleration instruction is issued in accordance with the output of the safe driving instruction signal, the delay time until arrival at the destination can be calculated and displayed.

It is a lineblock diagram showing a 1st embodiment of a safe run support system containing in-vehicle management equipment concerning the present invention. (First embodiment) It is a block diagram which shows the structural example of the server for management in the safe driving assistance system of FIG. (First embodiment) It is a flowchart which shows the process sequence in the in-vehicle management apparatus side and management center side of the safe driving assistance system of FIG. 1, and the communication sequence between these. (First embodiment) It is a flowchart which shows the subroutine in the flowchart of FIG. (First embodiment) It is a block diagram which shows 2nd Embodiment of the safe driving assistance system which enforces the safe driving assistance method which concerns on this invention. (Second Embodiment) It is a flowchart which shows the process sequence in the vehicle-mounted management apparatus side and management center side of the safe driving assistance system of FIG. 5, and the communication sequence between these. (Second Embodiment) It is a whole block diagram of the conventional vehicle-mounted management apparatus.

Explanation of symbols

1 On-vehicle management device 2 CPU (safe driving instruction signal generating means)
3 Communication part (vehicle running state information acquisition means)
4 GPS antenna (part of location information acquisition means)
5 GPS receiver (part of location information acquisition means)
6 Communication module (communication means)
7 Memory (memory means)
8 Display section (safe driving instruction signal output means; display means)
9 Operation part (road information input means)
10 Bus line 11 ECU for sensor
12 Communication Network 13 Management Center 13a ASP Server (Management Server)
13b Company office server (management server)
14 GPS satellite 15 Public institution server (external database)
131 Communication device (communication means)
132 Information processing device (road information generating means)
133 Storage device (storage means)

Claims (15)

A safe driving support method for supporting safe driving based on acquisition of road information related to a road condition where the vehicle is currently driving,
In the in-vehicle management device mounted on the vehicle, acquires and transmits position information indicating the current location of the vehicle,
In the management center, the transmitted location information is received, road information acquired from an external database is stored, and specific road information related to the received location information is stored based on the stored road information. Generate and send
The in-vehicle management device receives the specific road information transmitted from the management center, and generates and outputs a safe driving instruction signal according to the received specific road information. Driving support method. A safe driving support method for supporting safe driving based on acquisition of road information related to a road condition where the vehicle is currently driving,
In the in-vehicle management device mounted on the vehicle, the position information indicating the current location of the vehicle is acquired, the road information indicating the current road condition of the vehicle is acquired, and the acquired position information and the Send road information,
The management center receives the transmitted location information and the road information, stores the received road information, and based on the stored road information, the specific road related to the received location information Generate and send information,
The in-vehicle management device receives the specific road information transmitted from the management center, and generates and outputs a safe driving instruction signal according to the received specific road information. Driving support method. The safe driving support method according to claim 1 or 2,
In the in-vehicle management device, further, obtaining vehicle running state information relating to the running state of the vehicle,
A safe driving support method, comprising generating and outputting the safe driving instruction signal based on the acquired vehicle driving state information and the received specific road information. In the safe driving support method according to claim 3,
The vehicle travel state information is at least one information among travel speed, engine speed, and accelerator opening,
In the in-vehicle management device, at least one of the traveling speed, the engine speed, and the accelerator opening, and a speed threshold value corresponding to the at least one that is variable according to the received specific road information, an engine A rotation speed threshold value or an accelerator opening threshold value is compared, and at least one of the traveling speed, the engine rotation speed, and the accelerator opening amount is equal to or higher than the speed threshold value, the engine rotation speed threshold value, or the accelerator opening threshold value corresponding to the at least one. If it is, the safe driving instruction signal is generated. The safe driving support method according to claim 4,
In the in-vehicle management device, when at least one of the traveling speed, the engine speed, and the accelerator opening is equal to or higher than a speed threshold corresponding to the at least one, an engine speed threshold, or an accelerator opening threshold. A warning message is generated and displayed as the safe driving instruction signal. A safe driving support method, comprising: A safe driving support system that provides support for safe driving based on the acquisition of road information related to the road conditions on which the vehicle is currently driving,
An in-vehicle management device mounted on the vehicle, the in-vehicle management device having position information acquisition means for acquiring position information indicating the current location of the vehicle, and communication means for transmitting the acquired position information;
A management server installed in a management center, the communication means for receiving the position information transmitted from the communication means via a communication network, the storage means for storing road information acquired from an external database, Road information generation means for generating specific road information related to the received position information based on the road information stored in advance in the storage means, and the generated specific road information is communicated with the communication information. A management server that transmits from the means,
The in-vehicle management device receives the specific road information transmitted from the management server by the communication means via the communication network, and generates a safe driving instruction signal according to the received specific road information A safe driving support system characterized by A safe driving support system that provides support for safe driving based on the acquisition of road information related to the road conditions on which the vehicle is currently driving,
Road information input for inputting on-vehicle management equipment mounted on the vehicle, position information acquisition means for acquiring position information indicating a current location of the vehicle, and road information indicating a road condition of the vehicle currently running Vehicle-mounted management device comprising: means; and communication means for transmitting the acquired position information and the input road information;
A management server installed in a management center, the communication means for receiving the location information and the road information transmitted from the communication means via a communication network; and the storage means for storing the received road information Road information generation means for generating specific road information related to the received position information based on the road information stored in the storage means, and the generated specific road information is communicated with the communication information. A management server that transmits from the means,
The in-vehicle management device receives the specific road information transmitted from the management server by the communication means via the communication network, and generates a safe driving instruction signal according to the received specific road information A safe driving support system characterized by The safe driving support system according to claim 6 or 7,
The in-vehicle management device is
Vehicle traveling state information acquisition means for acquiring vehicle traveling state information relating to the traveling state of the vehicle;
Safe driving instruction signal generating means for generating the safe driving instruction signal based on the acquired vehicle driving state information and the received specific road information;
A safe driving support system further comprising safe driving signal output means for outputting the generated safe driving instruction signal. In the safe driving support system according to claim 8,
The vehicle travel state information is at least one information among travel speed, engine speed, and accelerator opening,
The safe travel instruction signal generating means is a speed threshold value corresponding to at least one of the travel speed, engine speed, accelerator opening, and variable according to the received specific road information. The engine speed threshold or the accelerator opening threshold is compared, and at least one of the travel speed, engine speed, and accelerator opening corresponds to the speed threshold, engine speed threshold, or accelerator opening corresponding to the at least one. The safe driving support system, wherein the safe driving instruction signal is generated when the threshold is equal to or greater than a threshold value. In the safe driving support system according to claim 9,
In the safe travel instruction signal generation means, at least one of the travel speed, engine speed, and accelerator opening is equal to or greater than a speed threshold, engine speed threshold, or accelerator opening threshold corresponding to the at least one. A warning message is generated as the safe driving instruction signal,
The safe driving signal output unit is a display unit that displays the warning message. An in-vehicle management device used in a safe driving support system that supports safe driving based on the acquisition of road information related to the current road conditions of the vehicle from the management center,
Position information acquisition means for acquiring position information indicating the current location of the vehicle;
A specific information that is generated and transmitted in association with the position information based on road information acquired from an external database from the management center that transmits the acquired position information and receives the transmitted position information. A communication means for receiving road information;
Safe driving instruction signal generating means for generating a safe driving instruction signal according to the received specific road information;
A vehicle-mounted management device comprising: safe driving instruction signal output means for outputting the generated safe driving instruction signal. An in-vehicle management device used in a safe driving support system that supports safe driving based on the acquisition of road information related to the current road conditions of the vehicle from the management center,
Position information acquisition means for acquiring position information indicating the current location of the vehicle;
Road information input means for inputting road information indicating the current road conditions of the vehicle;
The acquired position information and the input road information are transmitted and generated in association with the position information based on the road information from the management center that receives the transmitted position information and the road information. A communication means for receiving specific road information to be transmitted;
Safe driving instruction signal generating means for generating a safe driving instruction signal according to the received specific road information;
A vehicle-mounted management device comprising: safe driving instruction signal output means for outputting the generated safe driving instruction signal. The in-vehicle management device according to claim 11 or 12,
Vehicle travel state information acquisition means for acquiring vehicle travel state information relating to the travel state of the vehicle,
The in-vehicle management device, wherein the safe travel instruction signal generation unit generates the safe travel instruction signal based on the acquired vehicle travel state information and the received specific road information. The in-vehicle management device according to claim 13,
The vehicle travel state information is at least one information among travel speed, engine speed, and accelerator opening,
The safe travel instruction signal generating means is a speed threshold value corresponding to at least one of the travel speed, engine speed, accelerator opening, and variable according to the received specific road information. The engine speed threshold or the accelerator opening threshold is compared, and at least one of the travel speed, engine speed, and accelerator opening corresponds to the speed threshold, engine speed threshold, or accelerator opening corresponding to the at least one. The in-vehicle management device, wherein the safe driving instruction signal is generated when the threshold value is exceeded. The in-vehicle management device according to claim 14,
In the safe travel instruction signal generation means, at least one of the travel speed, engine speed, and accelerator opening is equal to or greater than a speed threshold, engine speed threshold, or accelerator opening threshold corresponding to the at least one. A warning message is generated as the safe driving instruction signal,
The in-vehicle management device, wherein the safe driving signal output means is a display means for displaying the warning message.

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