JP2009265981A - Driver safety confirmation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driver safety confirmation system capable of accurately predicting the safety of a driver when an earthquake occurs. <P>SOLUTION: The driver safety confirmation system 1 comprises a navigation device 2 loaded on a vehicle and a management server 3 on a mobile communication network 6 connected to a base station 4. When the navigation device 2 of them receives a transmission request signal from the management server 3 through a cellular phone 2a, state information indicating the state of the vehicle is transmitted to the management server 3. Meanwhile, when receiving disaster prediction information and disaster occurrence information from an earthquake analyzer 5 through the Internet communication network 7, the management server 3 transmits transmission request signals to the navigation device 2 respectively and determines that the driver is a victim, when determining that the height difference and inclination of the vehicle before and after earthquake occurrence are large on the basis of the difference of the state information transmitted from the navigation device 2 for the respective transmission request signals. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a driver safety confirmation system for confirming the safety of a driver when an earthquake occurs.

  Conventionally, when an earthquake occurrence area is specified by an earthquake information center such as the Japan Meteorological Agency, a server connected to a mobile communication network (hereinafter referred to as a management server) wirelessly communicates with a mobile phone located in the earthquake occurrence area. Therefore, there is known a safety confirmation system that confirms the safety of a disaster victim due to an earthquake and reports the confirmation result to the family or company of the disaster victim (for example, see Patent Document 1).

  In this safety confirmation system, the management server urgently calls subscribers such as the telephone number or e-mail address assigned to the subscriber's mobile phone (hereinafter referred to as subscriber contact information) and the subscriber's family or company. Contact information that sometimes needs to be contacted (hereinafter referred to as emergency contact information) is stored, and the location information of the mobile phone is acquired by wireless communication with the subscriber contact information that is first performed when an earthquake occurs.

When the management server determines that the current location of the subscriber is within the earthquake occurrence area based on the location information acquired from the mobile phone, the management server transmits a safety input request for requesting the input operation of the mobile phone to the subscriber. The safety information returned from the mobile phone that has received the safety input request confirms the safety of the subscriber in the earthquake occurrence area, and transmits the confirmation result to the emergency contact.
JP 2005-258638 A

  By the way, when an earthquake occurs when a mobile phone user is driving a vehicle, in addition to a primary accident that is directly damaged by the earthquake, the driver of another vehicle suddenly operates the steering wheel or brakes. Secondary accidents (for example, collisions and rollovers) that may cause indirect damage due to accidents may occur, and in particular, establishment of a system for confirming the safety of drivers traveling in the earthquake occurrence area is required. Has been.

  However, when trying to confirm the driver's safety with the conventional safety confirmation system, the driver is required to perform an input operation, so the vehicle is in a serious accident and the driver When a serious injury occurs and the input operation of the mobile phone becomes difficult, there is a problem that it is difficult to confirm whether the driver has been damaged by the earthquake.

  In other words, if safety information is not sent from the mobile phone to the management server, in addition to the case where the driver has suffered a disaster, the driver simply neglects the input operation of the mobile phone or the incoming call of the mobile phone. The management server had to process all of these cases at the same level that the driver's safety is unknown.

  In order to solve the above problems, an object of the present invention is to provide a driver safety confirmation system that can accurately predict the safety of a driver when an earthquake occurs.

  The driver safety confirmation system according to claim 1, wherein the area information acquisition unit acquires area information indicating a disaster area that is an earthquake occurrence area, and the state information acquisition unit includes: First state information representing a state in which the vehicle is placed at the time of occurrence of the earthquake and at the end of the earthquake (hereinafter also referred to as vehicle state) from the vehicle located in the disaster area indicated by the area information acquired by the area information acquisition means And second state information are acquired. And the safety determination means is configured to determine the safety of the driver of the vehicle based on the difference between the first state information and the second state information acquired by the state information acquisition means.

  The driver safety confirmation system configured as described above represents a vehicle state as a determination material for determining safety from a vehicle located in an earthquake occurrence area without an input operation by the driver of the vehicle. Status information (first status information and second status information) is acquired.

  Therefore, according to the driver safety confirmation system of the present invention, even when the vehicle is in a serious accident, the driver is seriously injured, and the input operation by the driver himself becomes difficult, Based on the status information sent from the vehicle, it is possible to determine whether the driver has suffered a disaster based on the change in the vehicle status between the occurrence of an earthquake and the end of the earthquake, and thus the safety of the driver in the event of an earthquake. Can be accurately predicted.

  Alternatively, the driver safety confirmation system includes an in-vehicle device mounted on a vehicle and a management device that performs wireless communication with the in-vehicle device, as described in claim 2. When a transmission request signal sent from the management device is received by wireless communication with the control device, the device includes state information transmitting means for transmitting state information indicating a state in which the vehicle is placed to the management device.

  On the other hand, in the management apparatus, the area information acquisition unit acquires area information indicating a disaster area that is an earthquake occurrence region, and the state information acquisition unit is located in the disaster area indicated by the area information acquired by the area information acquisition unit. By transmitting a transmission request signal to the in-vehicle device at the time of the occurrence of the earthquake and at the end of the earthquake, the first state information and the second state information as the state information at the time of the occurrence of the earthquake and the end of the earthquake are acquired. And the safety determination means determines the safety of the driver of the vehicle based on the difference between the first state information and the second state information acquired by the state information acquisition means.

  According to the driver safety confirmation system configured as described above, since the in-vehicle device may be designed to transmit the state information when a transmission request signal is transmitted from the management device, The driver's safety can be accurately predicted with a simple configuration without requiring a complicated device design.

  In addition, as described in claim 3, the driver safety confirmation system includes an altitude detection unit that detects the altitude of the current position of the vehicle, so that the in-vehicle device detects the altitude of the current position detected by the altitude detection unit. If the difference between the altitude of the current position at the time of the earthquake and the altitude of the current position at the end of the earthquake exceeds a preset height difference threshold, the safety determination means It is desirable to determine that the disaster has occurred.

  According to the driver safety confirmation system configured in this way, it is possible to check whether the vehicle has fallen in the event of an earthquake based on the difference in height between the current position at the time of the earthquake and at the end of the earthquake. Thus, the safety of the driver can be determined using the confirmation result.

  Alternatively, in the driver safety confirmation system, as described in claim 4, the in-vehicle device includes a rotation angle detection unit that detects a rotation angle with respect to the traveling direction of the vehicle and the vehicle width direction. When the rotation angle detected by the angle detection means is transmitted as state information and the difference between the rotation angle at the occurrence of the earthquake and the rotation angle at the end of the earthquake exceeds a preset angle difference threshold, the vehicle It is desirable to determine that the driver is damaged.

  According to the driver safety confirmation system configured in this way, it is confirmed whether the vehicle is riding on or overturning in the event of an earthquake, based on the pitch or roll angle difference between the occurrence of the earthquake and the end of the earthquake. It is possible to determine the safety of the driver using the confirmation result.

  Further, as described in claim 5, the safety determination means is damaged by the driver of the vehicle when the second status information cannot be acquired by the status information acquisition means even after a predetermined period has elapsed since the end of the earthquake. It is desirable to judge.

In this case, it is possible to confirm whether or not the communication from the vehicle has been interrupted after the earthquake ends, and the safety of the driver can be determined using the confirmation result.
As described in claim 6, the management device is a server on a network connected to a plurality of base stations for performing wireless communication with the in-vehicle device, and the state information acquisition means is a disaster indicated by the area information. It is desirable to transmit the transmission request signal via one or a plurality of base stations that accommodate at least a part of the area in the communication area.

  In this case, since the management device can transmit the transmission request signal in a batch to the area where the earthquake occurred rather than transmitting it for each vehicle, the status information can be collected promptly and eventually the earthquake occurs. In this case, the safety of the driver can be predicted efficiently.

Embodiments of the present invention will be described below with reference to the drawings.
<Overall configuration of driver safety confirmation system>
FIG. 1 is a block diagram showing a configuration of a driver safety confirmation system 1 to which the present invention is applied.

  As shown in FIG. 1, a driver safety confirmation system 1 includes a navigation device 2 that is an in-vehicle device mounted on a vehicle, and a driver's safety of a vehicle (hereinafter referred to as a target vehicle) in which the navigation device 2 is mounted. It consists of a management server 3 which is a management device that performs confirmation when an earthquake occurs.

  In the driver safety confirmation system 1, the management server 3 is connected to the mobile communication network 6 and the Internet communication network 7. Among these, the mobile communication network 6 and the base station 4 connected to the mobile communication network 6 are connected. It is configured to perform wireless communication with the navigation device 2 and to perform wired communication with the earthquake analysis device 5 installed in an earthquake information center such as the Japan Meteorological Agency via the Internet communication network 7.

  For wireless communication performed between the navigation device 2 and the base station 4, a Bluetooth (registered trademark) compatible mobile phone 2a that performs wireless communication with the navigation device 2 main body at a short distance is used. 2a is configured to realize a function as a so-called hands-free phone by being wirelessly connected to the navigation device 2 main body.

  The mobile communication network 6 provides a data communication service to the mobile telephone network 6a that is a network for providing a call service to the mobile phone 2a located in the communication service area of the mobile communication network 6. Mobile packet communication network 6b, which is a network for this purpose.

  A large number of base stations 4 are installed in the communication service area of the mobile communication network 6, perform wireless communication with the mobile phone 2 a located in the communication area covered by the own station 4, and for each base station 4. A radio signal including the assigned base station ID (hereinafter referred to as a base station identification signal) is constantly broadcast to the communication area of the own station 4. In addition, when the base station 4 of the present embodiment receives a first transmission request signal, which will be described later, from the management server 3 via the mobile communication network 6, the received signal is transmitted to the communication area of the own station 4 together with the base station identification signal. Configured to broadcast.

  The seismic analyzer 5 identifies the epicenter and magnitude of the seismic wave based on detection information from seismometers installed throughout the country, and generates a large-scale earthquake centered on the identified epicenter (for example, seismic intensity) 5 or more) is calculated (hereinafter referred to as a disaster prediction area), and a time until an earthquake wave reaches the disaster prediction area (hereinafter referred to as an earthquake wave arrival time) is calculated. Then, the disaster prediction information including the disaster prediction area and the arrival time of the seismic wave as the calculation result, and the disaster occurrence information to notify the occurrence of an earthquake immediately when an earthquake is observed by the seismometer in the disaster prediction area The server is configured to transmit to the management server 3 via the Internet communication network 7.

<Configuration of management server>
FIG. 2 is a block diagram showing the configuration of the management server 3 in this embodiment.
As shown in FIG. 2, the management server 3 includes a mobile communication unit 11 and an Internet communication unit (hereinafter referred to as an IP communication unit) 12 for transferring various information between the base station 4 and the earthquake analysis device 5. , Navigation device 2 (including mobile phone 2a) and a user database (hereinafter referred to as user DB) 13 in which various information relating to the user is registered, and a map coordinate database (hereinafter referred to as map coordinate DB) for storing map data 14) and a control unit 15 that controls the communication units 11 and 12 and updates the user DB 13 in response to inputs from the units 11 to 14.

  Among these components, the control unit 15 is configured around a well-known microcomputer including a CPU, ROM, RAM, I / O, a bus line, and the like, and the CPU predicts an earthquake based on a program stored in the ROM. A safety confirmation process (to be described later) for determining whether the driver of the target vehicle located in the area is damaged and confirming the safety of the driver is executed.

In addition to the map data, the map coordinate DB 14 stores communication coordinate data representing a communication area for each base station 4 in association with the base station ID.
On the other hand, as shown in FIG. 3, the identification number 13a of the navigation device 2 and the mobile phone 2a possessed by the user of the navigation device 2 (or also called the driver of the target vehicle) are assigned to the user DB 13. The telephone number, e-mail address, etc. (hereinafter referred to as user contact information) 13b and contact information (hereinafter referred to as emergency contact information) 13c that the user, such as the user's family or company, needs to contact in an emergency. Are stored in association with each other.

  Further, in the user DB 13, an area for storing the first state information 13 d and the second state information 13 e that are state information at the time of the occurrence of the earthquake and the end of the earthquake among the state information transmitted from the navigation device 2 ( Hereinafter, a state storage area) and an area for storing the determination result 13f by the safety confirmation process (hereinafter referred to as a determination storage area) are provided.

<Configuration of navigation device>
FIG. 4 is a block diagram showing a configuration of the navigation device 2 in the present embodiment.
As shown in FIG. 4, the navigation device 2 includes a mobile communication unit 21 that performs wireless communication with the outside of the target vehicle using a mobile phone 2a, a position detection unit 22 that detects a current position of the target vehicle, and a map. A map data input unit 23 for inputting data, a display unit 24 for displaying various images, an audio output unit 25 for outputting various guide voices, and the like, and various types according to inputs from the units 21 to 23 A control unit 26 that executes processing and controls the mobile communication unit 21, the display unit 24, and the audio output unit 25 is provided.

  Among these, the position detection unit 22 receives a radio wave (that is, a GPS signal) from an artificial satellite for GPS (Global Positioning System) via the GPS antenna 31a and outputs the received signal, A gyroscope 32 for detecting the magnitude of rotational motion applied to the vehicle, a distance sensor 33 for detecting the distance traveled from acceleration in three axes, and the like, and a geomagnetic sensor 34 for detecting the traveling direction from the geomagnetism It has. Each of the sensors 31 to 34 outputs detection signals for calculating the current position of the vehicle, the altitude of the current position, and the like.

  Note that the position detection unit 22 of the present embodiment uses the gyroscope 32, the distance sensor 33, and the geomagnetic sensor 34 even when the GPS receiver 31 cannot receive GPS signals from four or more GPS artificial satellites. Each detection signal for calculating the altitude of the current position by so-called autonomous navigation from the moving direction and moving distance of the vehicle is output. Further, the gyroscope 32 is configured to detect a rotation angle with the vehicle traveling direction and the vehicle width direction as axes and output a detection signal indicating the detection result.

  Although not shown, the map data input unit 23 is a device for inputting various data such as map data and voice data for guidance stored in a writable map storage medium such as a hard disk or a DVD-RAM. is there. The display unit 24 is a color display device, and includes a known transflective liquid crystal display, a general liquid crystal display, an organic EL display, a CRT, a head-up display, and the like, any of which may be used.

  The control unit 26 is configured around a well-known microcomputer including a CPU, ROM, RAM, I / O, a bus line, and the like. Among these, the CPU is based on a program stored in the ROM as follows. Executes status information transmission processing. In addition, the control unit 26 calculates a current position of the vehicle as a set of coordinates and a traveling direction based on each detection signal input from the position detection unit 22 and an optimal route from the current position to the destination. The route guidance processing is automatically performed, and the route guidance processing based on the route calculation via the display unit 24 and the voice output unit 25 is performed in parallel with the state information transmission processing. .

<Status information transmission process>
Here, the state information transmission process executed by the control unit 26 (CPU) of the navigation device 2 will be described in detail with reference to the flowchart shown in FIG. This process is started when the ignition switch of the vehicle is turned on, and is executed until the switch is turned off.

  First, when this process is started, in S110, it is determined whether a transmission request signal (described later) from the management server 3 has been received via the mobile communication unit 21, and if an affirmative determination is made, the process proceeds to S120. If the decision is negative, the process waits until the transmission request signal is received.

  In S120, based on the detection signal input from the position detector 22, the current position of the target vehicle and the altitude of the current position are calculated, and the calculated coordinate data is acquired (stored in the RAM).

  In subsequent S130, based on the detection signal input from the gyroscope 32, the rotation angle about the traveling direction and the vehicle width direction of the target vehicle is calculated, and the calculated rotation angle data is acquired (in the RAM). Remember.

  In the subsequent S140, the state data representing the state in which the target vehicle is placed is transmitted to the management server 3 via the mobile communication unit 21, which is composed of the coordinate data and the rotation angle data stored in the RAM in the previous S120 and S130. Then, S110 is re-executed. In addition, the identification number 13a (refer FIG. 3) of the navigation apparatus 2 and base station ID based on the base station identification signal which the mobile telephone 2a receives are added to the status information transmitted here.

<Safety confirmation processing>
Next, the safety confirmation process which the control part 15 (CPU) of the management server 3 performs is demonstrated in detail along the flowchart shown in FIG. This process is started when the management server 3 is powered on.

  First, when this process is started, in S210, a first request transmission process for requesting the navigation apparatus 2 to transmit the first state information 13d that is the state information at the time of the occurrence of an earthquake in the disaster prediction area is started. The process proceeds to S220.

  Next, in S220, the 2nd request | requirement transmission process for requesting the navigation apparatus 2 to transmit the 2nd status information 13e which is the status information at the time of the earthquake end in a disaster prediction area is started, and it progresses to S230.

And in S230, the safety determination process for determining whether the driver | operator of the target vehicle located in an earthquake prediction area is damaged is started, and this process is complete | finished.
<< First request transmission process >>
Next, the first request transmission process executed in S210 of the previous safety confirmation process will be described in detail with reference to the flowchart shown in FIG.

  First, when this process is started, in S310, it is determined whether or not disaster prediction information from the earthquake analysis device has been received via the IP communication unit 12, and if an affirmative determination is made, the process proceeds to S320, where a negative determination is made. If this happens, it waits until disaster prediction information is received.

  In S320, based on the disaster prediction area included in the disaster prediction information received in S310, the map coordinate DB 14 is referred to, and one or a plurality of base stations 4 that accommodate at least a part of the disaster prediction area in the communication area. (Ie, base station ID) is selected, and the process proceeds to S330.

  In S330, based on the seismic wave arrival time included in the disaster prediction information received in S310, the first transmission that is a transmission request signal for requesting transmission of the first state information when an earthquake occurs in the disaster prediction area The request signal is transmitted to the base station 4 corresponding to the base station ID selected in S320 via the mobile communication unit 11, and S310 is re-executed.

<< Second request transmission process >>
Next, the second request transmission process executed in S220 of the previous safety confirmation process will be described in detail with reference to the flowchart shown in FIG.

  First, when this process is started, in S410, it is determined whether or not the first state information 13d from the navigation device 2 has been received via the mobile communication unit 11, and if an affirmative determination is made, the process proceeds to S420. If a negative determination is made, the process waits until the first state information 13d is received.

  In S420, based on the coordinate data included in the first state information 13d received in S410 and the disaster prediction area included in the disaster prediction information received in S310 of the previous first request transmission process, It is determined whether or not the current position of the vehicle is within the disaster prediction area. If an affirmative determination is made, the process proceeds to S430. If a negative determination is made, S410 is re-executed.

  In S430, based on the identification number 13a (see FIG. 3) added to the first state information 13d received in S410, the state storage area of the user DB 13 corresponding to the identification number 13a is stored in the first storage information received in S410. 1 state information 13d is stored, and the process proceeds to S440.

  In S440, at the end of the earthquake in the disaster prediction area, the second transmission request signal that is a transmission request signal for requesting transmission of the second state information is added to the first state information 13d received in S410. It transmits via the mobile communication part 11 to the user contact 13b of user DB13 corresponding to the number 13a, and re-executes S410. The transmission timing of the second transmission request signal here is the disaster prediction information (earthquake wave arrival time) received in S310 of the previous first request transmission process, or the disaster occurrence information sent from the earthquake analyzer 5 Is determined based on at least one of them.

<Safety judgment processing>
Next, the safety determination process executed in S230 of the previous safety confirmation process will be described in detail with reference to the flowchart shown in FIG. This process is executed for all drivers (users) who have stored the first state information 13d in the user DB 13 in S420 of the previous second request transmission process.

  First, when this process is started, in S510, it is determined whether or not the second state information 13e from the navigation device 2 is received via the mobile communication unit 11. If the determination is affirmative, the process proceeds to S520. If a negative determination is made, the process proceeds to S515.

  In S515, it is determined whether or not a predetermined period (for example, 3 minutes) has elapsed since the transmission of the second transmission request signal in S440 of the previous second request transmission process. If the determination is affirmative, the process proceeds to S550. If a negative determination is made, S510 is re-executed.

  On the other hand, in S520 that is performed when the second state information 13e is received from the navigation device 2, the identification number is based on the identification number 13a (see FIG. 3) added to the second state information 13e received in S510. The second state information 13e received in S510 is stored in the state storage area of the user DB 13 corresponding to 13a, and the process proceeds to S530.

  In S530, with reference to the user DB 13, the coordinate data included in the first state information 13d stored in the state storage area in S430 of the previous second request transmission process, and the first stored in the state storage area in S520. The difference from the coordinate data included in the two-state information 13e exceeds a height difference threshold (for example, 1 m to 3 m) set in advance according to the reception interval between the first state information 13d and the second state information 13e. Judge whether or not. If the determination is affirmative, the process proceeds to S550, and if the determination is negative, the process proceeds to S540.

  In S540, similarly, referring to the user DB 13, the difference between the rotation angle data included in the first state information 13d and the rotation angle data included in the second state information 13e is the first state information. It is determined whether or not an angle difference threshold value (for example, 10 ° to 30 °) set in advance according to the reception interval between 13d and the second state information 13e is exceeded. If the determination is affirmative, the process proceeds to S550. If a negative determination is made, the process proceeds to S555.

  In S550, the determination flag indicating whether or not the driver of the target vehicle is available is set to 1 indicating that the driver of the target vehicle is damaged (or is likely to be damaged), and the setting is performed. The determination flag is stored in the determination storage area of the user DB 13 corresponding to the identification number 13a added to the second state information 13e received in S510, and the process proceeds to S560.

  On the other hand, in S555, the above-described determination flag is set to 0 indicating that the driver of the target vehicle is not damaged (or that there is a high possibility of not being damaged), and the set determination flag is set to S510. Is stored in the determination storage area of the user DB 13 corresponding to the identification number 13a added to the second state information 13e received in step S560, and the process proceeds to step S560.

  In S560, the determination result 13f (see FIG. 3) based on the determination flag stored in the determination storage area in the previous S550 or S555 is used corresponding to the identification number 13a added to the second state information 13e received in S510. To the emergency contact 13c of the user DB 13 via the mobile communication unit 11 (or the IP communication unit 12), and re-execute S510.

<Operation example>
In the driver safety confirmation system 1 configured as described above, as shown in FIG. 10, when the management server 3 predicts an earthquake occurrence area (hereinafter referred to as a disaster area) by the Japan Meteorological Agency, the predicted disaster A first transmission request signal to which a contact (hereinafter referred to as server contact) 3a of the management server 3 is added is transmitted to a plurality of base stations 4 that accommodate at least a part of the area in the communication area.

  Then, the base station 4 that has received the first transmission request signal superimposes data representing the contents indicated by the received signal (first transmission request data) on the base station identification signal and transmits it to the communication area of the own station 4. The target vehicle (navigation device 2) located in this communication area transmits a signal (first state signal) including the first state information to the management server 3. In the transmission of the first status signal here, since the communication destination is specified by the server contact 3a included in the first transmission request data, a communication path formed with the management server 3 is used. Done through.

  Next, when the disaster area is determined by the Japan Meteorological Agency and a predetermined period (for example, 30 seconds) elapses, the management server 3 transmits a second transmission request signal to the target vehicle located in the disaster area. The target vehicle (navigation device 2) that has received the second transmission request signal transmits a signal (second state signal) including the second state information via a communication path formed with the management server 3.

  Finally, the management server 3 determines the target vehicle before and after the occurrence of the earthquake based on the difference between the first state information and the second state information included in the received signal from the target vehicle (navigation device 2). When it is determined that the height difference or inclination is large, it is determined that the driver of the target vehicle is damaged, and the determination result is transmitted to the emergency contact information.

  In the above embodiment, the position detection unit 22 is the altitude detection means, the gyroscope 32 is the rotation angle detection means, the state information transmission process is the state information transmission means, S310 is the area information acquisition means, and S320 to S520 are the state information acquisition means. , S530 to S555 correspond to safety determination means.

<Effect of this embodiment>
As described above, in the driver safety confirmation system 1 according to the present embodiment, the management server 3 applies the navigation device 2 mounted on the vehicle traveling in the earthquake prediction area before and after the occurrence of the earthquake. Each of the transmission request signals is wirelessly transmitted, and the safety of the driver of the vehicle is determined based on the state information automatically transmitted from the navigation device 2 that has received the transmission request signal.

  Therefore, according to the driver safety confirmation system 1 of the present embodiment, when determining whether or not the driver is suffering from a disaster, it is not necessary to perform communication operation by the driver, so that the vehicle becomes a serious accident. Even if the driver is seriously injured, the determination based on the vehicle state is possible, and as a result, the safety of the driver can be accurately predicted when an earthquake occurs.

  In addition, in the driver safety confirmation system 1 of the present embodiment, the navigation device 2 is configured to perform wireless communication with the management server 3 via the mobile phone 2a, so that the user of the navigation device 2 can be a mobile phone. If the user is subscribed, it is not necessary to provide a new user contact information. As a result, the burden on the user (cost, management work, etc.) related to the present system can be suppressed.

  Note that the navigation device 2 of the present embodiment uses the gyroscope 32, the distance sensor 33, and the geomagnetic sensor 34 even when the GPS receiver 31 cannot receive GPS signals from four or more GPS artificial satellites. Each of the detection signals for calculating the altitude of the current position by so-called autonomous navigation from the moving direction and moving distance is output. For this reason, even when the vehicle is traveling in an area where the shielding objects such as buildings are densely packed, the coordinate data can be transmitted to the management server 3 even when the GPS signal cannot be received by the shielding object.

[Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it is possible to implement in various aspects.

  For example, in the safety determination process of the above embodiment, the condition for setting the determination flag to 1 is that the difference in coordinate data exceeds an elevation difference threshold (elevation difference condition), or the difference in rotation angle data is Although it is a case where the angle difference threshold is exceeded (angle difference condition), the present invention is not limited to this, and it may be applied only when both conditions (the height difference condition and the angle difference condition) are satisfied.

  In the safety determination process of the above embodiment, the individual determination result 13f is immediately transmitted to the emergency contact 13c for each user. However, the present invention is not limited to this. For example, the company side selects a plurality of employees. When there is a common emergency contact 13c for a plurality of users, as in the case of management, the determination results 13f of the plurality of users are transmitted to the emergency contact 13c in a batch. It may be.

And in the status information transmission process of the said embodiment, when the transmission request signal from the management server 3 is received, status information is transmitted to the management server 3, but it is not limited to this.
For example, the first state information is transmitted to the management server 3 when the disaster prediction information from the earthquake analysis device 5 is received, and the second state information is transmitted to the management server 3 when the disaster occurrence information from the earthquake analysis device 5 is received. It may be. In this case, the earthquake analysis device 5 may be connected to the mobile communication network 6.

  Alternatively, when either the disaster prediction information or the disaster occurrence information from the earthquake analysis device 5 is received, the first state information and the second state information are simultaneously transmitted to the management server 3 at the transmission timing based on the received information. It may be. In this case, the navigation device 2 only needs to be configured to be equipped with a recording device such as a so-called drive recorder and to store the predetermined number of coordinate data and rotation angle data.

  Moreover, although the navigation apparatus 2 of the said embodiment is comprised so that wireless communication with the exterior of an object vehicle may be performed using the mobile telephone 2a, it is not limited to this, A radio | wireless communication function is provided in the navigation apparatus 2 main body. May be configured as a communication module built-in type device on which a module for realizing the above is mounted. In this case, even when the power of the cellular phone 2a is turned off, the state information can be reliably transmitted as long as the ignition switch of the vehicle is in the ON state.

  In the driver safety confirmation system 1 of the above embodiment, when the base station 4 receives the first transmission request signal from the management server 3, the received signal is broadcast to the communication area of the own station 4 together with the base station identification signal. However, the present invention is not limited to this. For example, the management server 3 knows the communication area in which the mobile phone 2a is currently accommodated, and sends the first transmission request signal to the mobile phone. You may transmit separately to 2a.

The block diagram which shows the structure of the driver | operator safety confirmation system 1 to which this invention was applied. The block diagram which shows the structure of the management server 3 in this embodiment. The list which shows the registration content of user DB13 memorize | stored by the management server 3. FIG. The block diagram which shows the structure of the navigation apparatus 2 in this embodiment. The flowchart which shows the detail of the status information transmission process which the control part 26 of the navigation apparatus 2 performs. The flowchart which shows the detail of the safety confirmation process which the control part 15 of the management server 3 performs. The flowchart which shows the detail of the 1st request | requirement transmission process performed by the safety confirmation process. The flowchart which shows the detail of the 2nd request | requirement transmission process performed by the safety confirmation process. The flowchart which shows the detail of the safety determination process performed by the safety confirmation process. The sequence diagram which shows the operation example of the driver | operator safety confirmation system 1. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Driver safety confirmation system, 2 ... Navigation apparatus, 2a ... Mobile phone, 3 ... Management server, 4 ... Base station, 5 ... Earthquake analyzer, 6 ... Mobile communication network, 7 ... Internet communication network, 11 ... Mobile communication , 12 ... IP communication unit, 13 ... user DB, 14 ... map coordinate DB, 15 ... control unit, 21 ... mobile communication unit, 22 ... position detection unit, 23 ... map data input unit, 24 ... display unit, 25 DESCRIPTION OF SYMBOLS ... Audio | voice output part, 26 ... Control part, 31 ... GPS receiver, 32 ... Gyroscope, 33 ... Distance sensor, 34 ... Geomagnetic sensor.

Claims (6)

A driver safety confirmation system for confirming the safety of a driver of a vehicle,
Area information acquisition means for acquiring area information indicating a disaster area that is an earthquake occurrence area;
First state information and second state information respectively representing a state in which the vehicle is placed at the time of occurrence of the earthquake and at the end of the earthquake from the vehicle located in the disaster area indicated by the area information acquired by the area information acquisition means Status information acquisition means for acquiring
A safety determination unit that determines the safety of the driver of the vehicle based on a difference between the first state information and the second state information acquired by the state information acquisition unit;
A driver safety confirmation system comprising: An in-vehicle device mounted on a vehicle and a management device that performs wireless communication with the in-vehicle device, a driver safety confirmation system for confirming safety of a driver of the vehicle,
The in-vehicle device is
When receiving a transmission request signal sent from the management device by wireless communication with the management device, the device includes state information transmission means for transmitting state information representing a state in which the vehicle is placed to the management device,
The management device
Area information acquisition means for acquiring area information indicating a disaster area that is an earthquake occurrence area;
By transmitting the transmission request signal at the time of the occurrence of an earthquake and at the end of the earthquake to the in-vehicle device located in the disaster area indicated by the area information acquired by the area information acquisition means, State information acquisition means for acquiring first state information and second state information which are state information;
A safety determination unit that determines the safety of the driver of the vehicle based on a difference between the first state information and the second state information acquired by the state information acquisition unit;
A driver safety confirmation system comprising: The on-vehicle device includes an altitude detecting means for detecting the altitude of the current position of the vehicle,
The status information is an altitude of the current position detected by the altitude detecting means,
The safety determination means is configured such that when the difference between the altitude of the current position at the time of the earthquake and the altitude of the current position at the end of the earthquake exceeds a preset height difference threshold, the driver of the vehicle is damaged. The driver safety confirmation system according to claim 2, wherein it is determined that the driver is safe. The on-vehicle device includes rotation angle detection means for detecting a rotation angle with the vehicle traveling direction and the vehicle width direction as axes.
The state information is the rotation angle detected by the rotation angle detection means,
The safety determination means determines that the driver of the vehicle is damaged when a difference between the rotation angle at the time of the earthquake and the rotation angle at the end of the earthquake exceeds a preset angle difference threshold. The driver safety confirmation system according to claim 2, wherein:   The safety determination means determines that the driver of the vehicle is damaged when the second status information cannot be acquired by the status information acquisition means even after a predetermined period of time has passed since the end of the earthquake. The driver safety confirmation system according to any one of claims 2 to 4. The management device is a server on a network connected to a plurality of base stations for performing wireless communication with the in-vehicle device,
3. The status information acquisition unit transmits the transmission request signal via one or a plurality of base stations that accommodate at least a part of a disaster area indicated by the area information in a communication area. The driver safety confirmation system according to claim 5.