JP6861568B2 - In-vehicle device - Google Patents

Description

The present invention relates to an in-vehicle device that can be used to manage the warehousing / delivery status of a vehicle.

For example, in a company that owns or manages commercial vehicles such as taxis, buses, and trucks, it is necessary to grasp the operation status of each vehicle and manage the labor of each crew member as daily work. is there. Therefore, for example, at the start of daily business, the delivery procedure of each vehicle is performed, and at the end of business, the warehousing procedure is performed. In other words, by knowing the change of state of warehousing / delivery, it is possible to grasp the length of time from the start of business to the end of business and each time, and to accurately grasp the daily mileage of each vehicle. Become.

In addition, not limited to commercial vehicles, for example, a company that manages a toll parking lot grasps the time from the time when each of the various vehicles enters the parking lot to the time when the parking lot leaves the parking lot, and determines the length of this time. Parking fees are often charged based on this.

Various in-vehicle devices are used for this type of warehousing / delivery management. For example, in the system of the prior art shown in Patent Document 1, a digital tachograph mounted on a vehicle is used as an in-vehicle device, and the in-vehicle device and an office PC provide a wide area communication network and a packet communication network. It is connected via and communication is possible. In addition, this in-vehicle device switches from the warehousing state to the warehousing state based on the current position information obtained by GPS or the signal obtained from the short-range wireless communication equipment installed in the predetermined warehousing space. ..

Further, in the traveling data transfer system shown in Patent Document 2, it is shown that the traveling data recorded in the memory card by the on-board unit is transmitted to the office PC by wireless LAN at the time of warehousing.

Japanese Unexamined Patent Publication No. 2016-61285 Japanese Patent No. 5938197

By the way, when a commercial vehicle arrives, it is desirable to safely transmit data such as operation information of the day accumulated by the in-vehicle device on the vehicle to the office PC outside the vehicle by wireless communication. Further, when switching the management state of a commercial vehicle or the like from the warehousing state to the warehousing state, it is necessary to improve the accuracy of the switching.

Therefore, for example, as shown in Patent Document 1, short-range wireless communication is used to enable wireless communication between the equipment and the vehicle only within a very narrow area. By transmitting data by short-range wireless communication, highly secure communication can be realized at low cost. In addition, it is possible to improve the accuracy of switching by switching from warehousing to warehousing only when the corresponding vehicle actually arrives within a very limited range (for example, within a radius of 10 m) from a predetermined position. it can.

On the other hand, it is necessary to monitor the state of vehicles in the warehousing state. For example, it is conceivable to output an alarm when an attempt is made to leave the vehicle illegally or when there is a risk of theft, that is, when the vehicle has traveled even though it has not undergone the formal delivery procedure. .. Such monitoring can be easily performed if the in-vehicle device on the vehicle and the short-range wireless communication equipment are in a state where wireless communication is possible.

By the way, in a company or the like in which a large number of vehicles are managed, a large area is often secured as a parking lot for storing the vehicles to be managed. Therefore, after a vehicle reaches a specific narrow area that can be communicated by short-range wireless communication and is switched to the warehousing state, the vehicle moves to another place in the parking lot where the radio wave of short-range wireless communication does not reach. It is necessary to do.

However, when the warehousing vehicle moves to a place where communication is not possible by short-range wireless communication, the vehicle will run in the undelivered state. It will be output and it will be a very troublesome situation.

In order to prevent the output of unnecessary alarms as described above, it is necessary to make the radio waves of short-range wireless communication reach all areas in the regular parking lot. For that purpose, a large number of antennas for short-range wireless communication must be installed at various places in the parking lot, which increases the equipment cost such as antennas and wiring and the burden on the equipment installation work.

On the other hand, if the range of the area in which one antenna can communicate is expanded in order to reduce the number of antennas, there is a concern that the accuracy of the warehousing / delivery switching control may decrease. Further, it becomes difficult to ensure the security of data communication.

Further, when the position information is used, accurate position information cannot be obtained when radio waves such as GPS (Global Positioning System) are difficult to reach, and the operation of the system may become unstable. In addition, the vehicle may be temporarily stopped to refuel or to create a daily report between the time the vehicle arrives and the time it moves to the parking lot area. .. Therefore, it is very difficult to identify whether or not the running of the vehicle after warehousing is acceptable.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an in-vehicle device capable of suppressing unnecessary alarm output when a vehicle in a warehousing state moves in a predetermined parking lot. To provide.

In order to achieve the above-mentioned object, the in-vehicle device according to the present invention is characterized by the following (1) to (7).

(1) A receiving unit that receives a warehousing signal indicating that the vehicle has arrived from the outside of the vehicle via wireless communication.
When the warehousing signal is received, a state determination unit that determines that the vehicle has changed from the warehousing state to the warehousing state, and
A traveling determination unit that determines whether or not the vehicle is traveling,
After the state determination unit determines that the vehicle has entered the warehousing state, an alarm is issued when the reception unit has not received the warehousing signal and the travel determination unit determines that the vehicle is running. Alarm output unit that outputs
A permissible running determination unit for determining whether or not the running of the vehicle in the warehousing state is permissible is provided.
The on-vehicle device is characterized in that the alarm output unit suppresses the output of the alarm when it is determined by the permissible travel determination unit that the travel is permitted.

(2) A position acquisition unit for acquiring a position signal indicating the position of the vehicle is provided.
The vehicle-mounted device according to (1) above, wherein the permissible travel determination unit determines that the travel of the vehicle whose position is included in the predetermined region is the permissible travel.

(3) The permissible travel determination unit is characterized in that the travel of the vehicle within a predetermined time after the reception unit receives the warehousing signal is determined to be the permissible travel (1). Or the in-vehicle device according to (2).

(4) The above-described (1), wherein the allowable traveling determination unit determines that the traveling of the vehicle is the permitted traveling when the crew detects a predetermined input operation. In-vehicle device.

(5) When the permissible travel determination unit detects a predetermined input operation by the crew after determining that the vehicle is traveling as the permissible travel, the permissible travel determination unit switches to a direction that limits the permissible conditions for the determination. The vehicle-mounted device according to any one of (1) to (4) above.

(6) The permissible travel determination unit monitors the state of the ignition signal of the vehicle after the wireless communication at the time of warehousing in the vehicle is completed, and at least until the ignition signal is first turned off. The in-vehicle device according to (1) above, wherein the traveling of the vehicle is determined to be the permitted traveling.

(7) The permissible travel determination unit monitors the state of the ignition signal of the vehicle after the wireless communication at the time of warehousing in the vehicle is completed, and turns the ignition signal on after the ignition signal is first turned off. The in-vehicle device according to (1) or (6) above, wherein if the elapsed time until the vehicle becomes less than a predetermined time, it is determined that the traveling of the vehicle is the permitted traveling.

According to the in-vehicle device having the configuration of (1) above, when a vehicle in a warehousing state moves in a predetermined parking lot or the like, even if the receiving unit cannot receive the warehousing signal, a predetermined allowance is set in advance. In the running state, the alarm output unit suppresses the alarm output according to the determination of the permissible running determination unit. Therefore, it is possible to prevent the output of unnecessary alarms. Moreover, since it is not necessary to expand the communication range of wireless communication, it is easy to ensure the safety of data communication, and it is not necessary to increase the number of antennas for communication.

According to the in-vehicle device having the configuration of (2) above, when a vehicle in a warehousing state moves in a predetermined parking lot or the like, even if the receiving unit cannot receive the warehousing signal, the current position of the vehicle is present. Is within the allowable range of the predetermined region, the alarm output unit suppresses the alarm output according to the determination of the allowable travel determination unit. Therefore, for example, in the case of traveling such that the warehousing vehicle moves to a parking lot set as a predetermined area, the alarm can be suppressed.

According to the in-vehicle device having the configuration of (3) above, when a vehicle in a warehousing state moves in a predetermined parking lot or the like, the vehicle is in the warehousing state even if the receiving unit cannot receive the warehousing signal. Within a predetermined time after switching to, the alarm output unit suppresses the alarm output according to the determination of the allowable travel determination unit. Therefore, for example, in the case of traveling such that the vehicle immediately after warehousing is moved to a predetermined parking lot, the alarm can be suppressed.

According to the in-vehicle device having the configuration of (4) above, when the vehicle in the warehousing state moves in a predetermined parking lot or the like, the crew member inputs a predetermined input even if the receiving unit cannot receive the warehousing signal. When the operation is performed, the alarm output unit suppresses the alarm output according to the determination of the allowable traveling determination unit.

According to the in-vehicle device having the configuration of (5) above, after the vehicle in the garage has completed the movement in the predetermined parking lot or the like, the crew member performs a predetermined input operation to tighten the allowable condition for the judgment. Can be switched to.

According to the in-vehicle device having the configuration of (6) above, it is possible to suppress unnecessary alarms when moving to a parking lot area such as a wireless LAN where radio waves do not reach after the vehicle has arrived. Moreover, since it does not require vehicle position information, it is easy to control, and stable operation can be expected even in places where radio waves such as GPS are difficult to reach.

According to the in-vehicle device having the configuration of (7) above, unnecessary alarms can be suppressed even when the vehicle travels by turning on the ignition again within a certain period of time after turning off the ignition. Therefore, for example, when the engine is temporarily stopped to refuel immediately after warehousing, the engine is started again, and the vehicle moves to the parking lot area, unnecessary alarms can be suppressed. In addition, unnecessary alarms can be suppressed even when the engine is temporarily stopped to create a daily report immediately after warehousing and the engine is started again to move to the parking lot area.

According to the in-vehicle device of the present invention, when a vehicle in a warehousing state moves in a predetermined parking lot or the like, even if the receiving unit cannot receive the warehousing signal, a predetermined allowed running state is obtained. If so, the alarm output unit suppresses the alarm output according to the determination of the allowable travel determination unit. Therefore, it is possible to prevent the output of unnecessary alarms. Further, since it is not necessary to expand the communication range of wireless communication, it is easy to ensure the safety of data communication, and it is not necessary to increase the number of antennas for communication.

The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments described below (hereinafter referred to as "embodiments") with reference to the accompanying drawings. ..

FIG. 1 is a plan view showing a specific example of the positional relationship between a plurality of vehicles to be managed and a management area. FIG. 2 is a block diagram showing a configuration example of an in-vehicle device according to the first embodiment of the present invention. FIG. 3 is a flowchart showing an example of a main operation of the in-vehicle device according to the first embodiment of the present invention. FIG. 4 is a schematic view showing an example-1 of a usage environment of an in-vehicle device according to a second embodiment of the present invention. FIG. 5 is a schematic view showing Example 2 of the usage environment of the in-vehicle device according to the second embodiment of the present invention. FIG. 6 is a block diagram showing a configuration example of a system including an in-vehicle device according to a second embodiment of the present invention. FIG. 7 is a flowchart showing an operation example of the in-vehicle device according to the second embodiment of the present invention.

Specific embodiments of the present invention will be described below with reference to the respective figures.
(First Embodiment)
First, a specific example of the usage form of the in-vehicle device of the present invention will be described.

FIG. 1 shows a specific example of the positional relationship between a plurality of vehicles to be managed and the management area. That is, in the example shown in FIG. 1, the plan shape of the parking lot 31 for storing the plurality of vehicles 41 and 42 whose operation has been completed in the warehousing state is shown.

In the example shown in FIG. 1, it is assumed that the vehicles 41 and 42 are trucks, but in order to manage commercial vehicles such as buses and taxis, and general vehicles parked in parking lots. It is also possible to use the in-vehicle device of the present invention.

In the example shown in FIG. 1, the parking lot 31 has a sufficiently large space compared to the size of each vehicle so that a large number of vehicles can be parked at the same time. In the example of FIG. 1, the plane shape of the parking lot 31 is rectangular, but a parking lot having a special shape other than the rectangular shape may be used.

A parking lot entrance / exit 32 is provided in a part of the parking lot 31. That is, each vehicle 41, 42 travels so as to pass through the parking lot entrance / exit 32 in both the case where the vehicles 41 and 42 leave the garage and the case where the vehicles enter the garage.

For example, the vehicle 41 whose operation on the day has been completed enters the parking lot 31 through the parking lot entrance / exit 32 as shown in FIG. Then, the vehicle travels in the parking lot 31 through an appropriate travel route such as the travel locus 41a, and parks at a designated appropriate place.

In the example shown in FIG. 1, the parking lot side wireless LAN equipment 30 is installed in the vicinity of the parking lot entrance / exit 32. Then, the parking lot side wireless LAN equipment 30 forms a narrow area communicable area 33 having a shape close to a circle. That is, only when each vehicle 41, 42 exists in the narrow area communicable area 33, wireless communication can be performed between the in-vehicle device mounted on each vehicle and the parking lot side wireless LAN equipment 30. ..

In the example shown in FIG. 1, the size of the narrow area communicable area 33 is sufficiently smaller than the size of the parking lot 31, for example, a radius of about 10 m. By reducing the size of the narrow area communicable area 33 in this way, the place where the warehousing / warehousing procedure can be performed can be limited to only a very limited place, and the management becomes easy. In addition, since the radio waves transmitted by the in-vehicle device and the wireless LAN equipment 30 on the parking lot side do not reach outside the premises of the parking lot 31, the contents of the wireless data communication can be transmitted to a third party without taking special safety measures. It can be prevented from leaking.

However, when the narrow area communicable area 33 of the parking lot side wireless LAN equipment 30 is small as shown in FIG. 1, the radio wave of wireless communication reaches only a part of the parking lot 31, so that after warehousing The state of each vehicle cannot be grasped or managed by wireless communication.

For example, in order to prevent each vehicle that has been warehousing from being stolen or attempting to warehousing illegally without performing the prescribed warehousing procedure, it is possible to equip the in-vehicle device mounted on each vehicle with an alarm function. You will need it. This alarm function is configured to output an alarm when, for example, a vehicle after warehousing starts traveling in a state where the vehicle has not been warehousing.

However, even when the vehicles 41 and 42 travel on the premises of the parking lot 31, the parking lot side wireless LAN equipment 30 stores the vehicle in a place where the radio waves of the parking lot side wireless LAN equipment 30 do not reach. Since it cannot be grasped as a state, the in-vehicle device has no choice but to output an alarm.

That is, as shown in FIG. 1, after the vehicle 41 whose business on the day has been completed passes through the parking lot entrance / exit 32, enters the narrow area communicable area 33, and switches to the warehousing state, the vehicle 41 travels. When traveling on a route such as 41a and moving to a predetermined parking place, the alarm function of the in-vehicle device mounted on the vehicle 41 detects the traveling of the vehicle 41 and outputs an alarm of "undelivered traveling". Will be done. Therefore, the crew member who moves the vehicle 41 recognizes the output of an annoying alarm even though no problem has occurred.

For example, if the antennas of the parking lot side wireless LAN equipment 30 are installed at various places in the parking lot 31, communication can be performed between each vehicle existing in the parking lot 31 and the parking lot side wireless LAN equipment 30. , It is possible to prevent the alarm function of the in-vehicle device from being activated in the vehicle traveling through the traveling locus 41a. However, if a plurality of antennas are installed, the equipment cost of the antenna and wiring and the cost associated with the installation work will increase.

Therefore, the in-vehicle device of the present invention suppresses the in-vehicle device of the vehicle moving in the parking lot 31 from outputting unnecessary alarms without installing a plurality of antennas in various places in the parking lot 31. It is equipped with a function. Details are as shown below.

<Configuration example of in-vehicle device>
FIG. 2 shows a configuration example of the in-vehicle device 10 according to the embodiment of the present invention. The on-board device 10 and the digital tachograph on-board unit 20 shown in FIG. 2 shall be used in a state of being mounted on each of the vehicles 41 and 42 such as the truck shown in FIG. 1, a bus, a taxi, and other general vehicles. Is assumed.

In the example shown in FIG. 2, it is assumed that the vehicle-mounted device 10 and the digital tachograph vehicle-mounted device 20 are configured as independent vehicle-mounted devices, but the function of the vehicle-mounted device 10 is incorporated inside the digital tachograph vehicle-mounted device 20. These can also be integrated with. Further, instead of the digital tachograph on-board unit 20, other on-board units such as a drive recorder, a car navigation device, an ETC (Electronic Toll Collection) on-board unit, a taxi meter, and a meter unit equipped with various instruments are used. It can be assumed that it will be done.

The in-vehicle device 10 shown in FIG. 2 includes a microcomputer (CPU) 11, a wireless LAN (local area network) module 12, a GPS (Global Positioning System) receiver 13, an operation unit 14, and a button interface (I / F) 15. It includes a voice interface 16, a speaker 17, and an interface 18.

The microprocessor 11 operates according to a program incorporated in the microcomputer 11 in advance, and performs control for realizing various functions required for the in-vehicle device 10. For example, the microcomputer 11 controls to realize the operation shown in FIG.

The wireless LAN module 12 is a circuit module that operates according to a wireless LAN standard and realizes wireless communication over a relatively short distance. That is, radio waves can be transmitted and received via the antenna ANT1, and wireless communication can be realized between, for example, the parking lot side wireless LAN equipment 30 and the in-vehicle device 10 shown in FIG.

The GPS receiver 13 receives radio waves from a plurality of GPS satellites (not shown) via the antenna ANT2, performs a calculation based on the time of the received plurality of signals, and determines the current position (latitude / longitude) of the own vehicle. Information can be obtained. This position information can also be given to the microcomputer 11 from the GPS receiver 13.

The operation unit 14 includes a plurality of buttons that can be operated by the crew of the own vehicle. For example, the operation unit 14 is provided with an operation button for procedures for leaving / warehousing the own vehicle, a "vehicle movement button" for instructing the vehicle to travel while the vehicle is in the warehousing, and the like. The operation unit 14 is connected to the microprocessor 11 via the button interface 15.

The voice interface 16 can generate an electric signal having a waveform similar to a voice related to an alarm or guidance to a crew member of the own vehicle according to an instruction of the microcomputer 11. For example, when the own vehicle is running in the undelivered state, a pseudo voice waveform representing an alarm such as "A run in the undelivered state has been detected. Please perform the prescribed procedure when leaving the garage." It is possible to output the electric signal of. This electric signal is converted into sound by the speaker 17, and is output as a voice recognizable by the crew or an alarm sound.

The interface 18 functions to connect the microprocessor 11 and the digital tachograph on-board unit 20 or the like, which is an external on-board unit, in a communicable state. For example, when the own vehicle is switched from the warehousing state to the warehousing state, the data such as the operation information acquired and accumulated by the digital tachograph on-board unit 20 up to that point is stored in the management device (office PC) installed in the office or the like outside the vehicle. ) Need to be sent. This data can be transferred from the digital tachograph vehicle-mounted device 20 to the management device via the interface 18, the microcomputer 11, the wireless LAN module 12, the antenna ANT1, and the parking lot side wireless LAN equipment 30. Further, the digital tachograph on-board unit 20 can acquire information on the current vehicle speed (km / h) of the own vehicle, and the information on the vehicle speed can be given to the microprocessor 11 via the interface 18.

<Operation example of in-vehicle device>
FIG. 3 shows an example of the main operation of the in-vehicle device 10 according to the embodiment of the present invention. The operation shown in FIG. 3 will be described below.

For example, when the vehicle 41 whose operation on the day is completed enters the inside of the parking lot 31 from the parking lot entrance 32 as shown in FIG. 1 and advances into the narrow area communicable area 33, the in-vehicle device on the vehicle 41 Short-range wireless communication is possible between 10 and the parking lot side wireless LAN facility 30. Then, the in-vehicle device 10 and the parking lot side wireless LAN equipment 30 communicate with each other, so that the management device (office PC) (not shown) connected to the parking lot side wireless LAN equipment 30 is associated with the in-vehicle device 10. Recognizes that the vehicle 41 has arrived.

Further, the state of the in-vehicle device 10 also switches from the warehousing state to the warehousing state because the signal from the parking lot side wireless LAN equipment 30 is received. At this time, the operation shown in FIG. 3 is started from step S11 under the control of the microcomputer 11.

In step S11, data such as operation information stored in the digital tachograph vehicle-mounted device 20 is transmitted to the management device (office PC) via the vehicle-mounted device 10 and the parking lot side wireless LAN facility 30. Further, the in-vehicle device 10 records the time when the warehousing state changes to the warehousing state, or starts counting the elapsed time from that time.

On the other hand, since the warehousing vehicle 41 cannot be parked in the narrow area communicable area 33 for a long time, the vehicle 41 is driven on a route such as the traveling locus 41a after warehousing to reach a predetermined place in the parking lot 31. After moving, it is necessary to stop the vehicle 41 and put it in a parked state. However, even in the parking lot 31, if the vehicle 41 moves to the outside of the narrow area communicable area 33, the in-vehicle device 10 cannot receive the wireless signal from the parking lot side wireless LAN equipment 30, and the warehousing state is normal. Is in a state where it cannot be grasped whether or not is continuing. Therefore, it may be necessary to output an alarm.

Therefore, if the in-vehicle device 10 cannot receive the wireless signal from the parking lot side wireless LAN equipment 30 after the warehousing state is reached, the operation of the in-vehicle device 10 proceeds to step S12 or later under the control of the microcomputer 11.

In step S12, the microprocessor 11 acquires information on the current vehicle speed of the own vehicle from the digital tachograph on-board unit 20 and compares it with a predetermined threshold value to identify whether or not the traveling of the own vehicle is detected. .. For example, when the vehicle 41 travels from the narrow area communicable area 33 to a predetermined location in the parking lot 31, the vehicle speed of the vehicle 41 becomes equal to or higher than the predetermined value, so that the travel is detected in step S12. If traveling is detected in step S12 when the wireless signal from the parking lot side wireless LAN facility 30 cannot be received, the process proceeds to the next step S13.

In step S13, the microprocessor 11 identifies whether or not the elapsed time since the own vehicle was switched to the warehousing state is within a certain time. A specific example of a fixed time is assumed to be set to about 30 minutes, but it may be changed as necessary. If it is within a certain period of time, the process proceeds from step S13 to S14, and if the time exceeds a certain period of time, the process proceeds to S19.

In step S14, the microprocessor 11 acquires information on the current position of the own vehicle from the GPS receiver 13 and compares the current position with a plurality of predetermined threshold values so that the current position is within a specific area. Identify whether or not. Here, the specific area corresponds to, for example, the specific area 34 shown in FIG. 1, is equivalent to the range of the parking lot 31, and is larger than the narrow area communicable area 33. If it is within the specific area, the process proceeds from steps S14 to S15, and if it is outside the area, the process proceeds to S19.

In step S15, the microprocessor 11 switches to the “undelivered travel warning suppression mode”. Specifically, a predetermined flag indicating that the mode is "undelivered running warning suppression mode" is set. As a result, even when the own vehicle is switched to the "warehousing state", the wireless signal from the parking lot side wireless LAN equipment 30 cannot be received, and the running of the own vehicle is detected, the in-vehicle device 10 is in an operation mode in which the alarm of "running undelivered" is not output.

In step S16, the microprocessor 11 identifies the state of the "vehicle movement button" provided on the operation unit 14. When the crew presses the "vehicle move button", the microprocessor 11 detects it and proceeds from steps S16 to S18. If the pressing of the "vehicle move button" is not detected, the process proceeds from steps S16 to S17.

In step S17, the microprocessor 11 identifies whether or not the elapsed time from the switching of the own vehicle to the warehousing state is within a certain time. A specific example of a fixed time is assumed to be set to about 30 minutes, but it may be changed as necessary. If it is within a certain time, the process returns from step S17 to S15, and if it exceeds the certain time, the process proceeds to S18.

In step S18, the microprocessor 11 cancels the “undelivered travel warning suppression mode”. Specifically, a predetermined flag indicating that the mode is "undelivered running warning suppression mode" is reset. As a result, when the own vehicle is switched to the "warehousing state", the wireless signal from the parking lot side wireless LAN equipment 30 cannot be received, and when the running of the own vehicle is detected, the in-vehicle device 10 is "not delivered". It changes to output a "running" warning.

In step S19, the microprocessor 11 identifies the state of the "vehicle movement button" provided on the operation unit 14 and the state of the flag indicating the "movement mode". When the crew presses the "vehicle move button", the microprocessor 11 detects it and sets the "movement mode" flag. Further, when the microprocessor 11 detects the pressing of the "vehicle movement button" in step S19 or detects that the "movement mode" flag has already been set, the process proceeds from steps S19 to S20. If the pressing of the "vehicle movement button" is not detected and the "movement mode" flag is reset, the process proceeds from steps S19 to S21.

In step S20, the microprocessor 11 switches to the “undelivered travel warning suppression mode”. That is, the same operation as in step S15 described above is performed.

In step S21, the microprocessor 11 operates so as to output an alarm of "running undelivered". That is, after the own vehicle is in the "warehousing state", the radio wave of the parking lot side wireless LAN equipment 30 cannot be received even though the vehicle has not been switched to the "delivery state" by the predetermined procedure, and the own vehicle When the vehicle is detected, the microcomputer 11 sends an instruction to the voice interface 16 and issues an alarm such as "A vehicle in an undelivered state has been detected. If you want to leave the vehicle, follow the prescribed procedure." Output from the speaker 17.

In step S22, the microprocessor 11 identifies the state of the "vehicle movement button" provided on the operation unit 14. When the crew presses the "vehicle move button", the microprocessor 11 detects it and resets the "movement mode" flag, and then proceeds to steps S22 to S18. If the pressing of the "vehicle move button" is not detected in the "move mode", the process proceeds from steps S22 to S23.

In step S23, the microprocessor 11 identifies whether or not the elapsed time since the "vehicle movement button" is pressed is within a certain period of time. A specific example of a fixed time is assumed to be set to about 30 minutes, but it may be changed as necessary. If it is within a certain time, the process returns from step S23 to S20, and if it exceeds the certain time, the process proceeds to S18.

For example, in the in-vehicle device 10 on the vehicle 41 shown in FIG. 1, when moving to a predetermined position in the parking lot 31 along the traveling locus 41a after switching to the “warehousing state” in the narrow area communicable area 33. In addition, the radio wave of the parking lot side wireless LAN equipment 30 cannot be received, and the process proceeds to step S12 of FIG. Then, since the in-vehicle device 10 detects the traveling of the own vehicle, there is a possibility that an alarm of "undelivered traveling" is output.

However, if the movement is within a certain period of time after the warehousing and the movement is within the specific area 34, the process proceeds to step S15 in FIG. Further, if the crew presses the "vehicle movement button" after shifting to the mode in which the alarm is suppressed, the suppression of the alarm is released.

In addition, even if the conditions of "movement within a certain period of time after warehousing" and "movement within the specific area 34" are not met, if the crew presses the "vehicle movement button" when the alarm is not suppressed, Since the process proceeds from step S19 to S20 in FIG. 3, the warning of "running undelivered" is suppressed in this case as well. Then, when the crew presses the "vehicle movement button" again, the suppression of the alarm is released in step S22.

In the operation shown in FIG. 3, only when both of the two conditions of "movement within a certain time after warehousing" (S13) and "movement within the specific area 34" (S14) are satisfied at the same time, "not yet". Although the mode has shifted to the mode of suppressing the warning of "delivery running", the warning may be suppressed when either of the above two conditions is satisfied. Therefore, for example, one of steps S13 and S14 shown in FIG. 3 can be omitted, and the process can be changed so as to proceed to step S15 only by satisfying the other condition.

Instead of the wireless LAN module 12, a communication module for short-range communication of another standard, for example, Bluetooth (registered trademark) may be used. Further, the position information of the own vehicle may be acquired by a method other than GPS. In addition, other predetermined conditions have been satisfied, such as transmitting a signal from the management device (office PC) side to switch to the "undelivered running warning suppression mode" via the parking lot side wireless LAN equipment 30. In some cases, the mode may be switched to the "undelivered running warning suppression mode". Further, in the parking lot 31, the warehousing entrance and the warehousing exit are different, and even when the warehousing wireless LAN equipment and the warehousing wireless LAN equipment are installed at the warehousing side entrance and the warehousing side exit, respectively, the warehousing The configuration according to the present invention can be realized as much as possible for communication between the wireless LAN equipment for use and the in-vehicle device 10.

<Advantages of in-vehicle device 10>
By executing the operation shown in FIG. 3, the in-vehicle device 10 is inside the parking lot 31 even when the narrow area communicable area 33 is smaller than the size of the entire parking lot 31 as shown in FIG. When the vehicle 41 moves, it is possible to suppress the output of the warning of "running undelivered". Therefore, it is not necessary to connect a plurality of antennas to the parking lot side wireless LAN equipment 30, and the equipment cost of the antenna and wiring and the cost required for installation can be reduced. Further, by reducing the narrow area communicable area 33, the place where the warehousing / delivery is switched can be limited to the vicinity of the parking lot entrance / exit 32 and the like, so that the warehousing / delivery management becomes easy. Further, since the radio wave of short-range wireless communication is unlikely to leak to the outside of the parking lot 31, it is possible to prevent the communication content from leaking to a third party without taking special security measures during data communication.

(Second Embodiment)
<Specific example of usage environment of in-vehicle device>
Examples 1 and 2 of the usage environment of the in-vehicle device according to the embodiment of the present invention are shown in FIGS. 4 and 5, respectively.

In the examples shown in FIGS. 4 and 5, a wireless LAN access point 54 is installed near the office building 53 of the company that manages the operation of the vehicle, and the access point 54 provides a relatively narrow range, for example, a radius. A communication area 51 having a size of about 100 [m] is formed. On the vehicle 61A whose operation is managed by this company, for example, an in-vehicle device 60 having a digital tachograph function is mounted. The on-board unit 60 has a wireless LAN communication function, and can perform wireless communication with the access point 54 when the vehicle 61A exists in the communication area 51.

When the operation of the vehicle 61A on the day is completed, the vehicle 61A can enter the communication area 51 to carry out the warehousing procedure. That is, various operation data collected and accumulated by the in-vehicle device 60 in the operation work on the day is collected from the in-vehicle device 60 via the access point 54 in the office building 53 by wireless LAN communication in the communication area 51. Can be sent to the device.

The vehicle 61A, which has completed the warehousing procedure in the communication area 51, normally moves by itself to the parking lot area 52 through the movement route 65A, and is parked like the vehicle 61B. As shown in FIGS. 4 and 5, when the parking lot area 52 exists at a position relatively distant from the office building 53 or the like, the vehicle 61A is in a state of being outside the communication area 51 after the warehousing procedure. And move to the parking lot area 52.

On the other hand, the on-board unit 60 has a function of outputting an alarm for the unauthorized travel of the vehicle 61A after the vehicle 61A has arrived. Then, as a general alarm function, when the vehicle 61A travels outside the communication area 51 after warehousing, it is regarded as an unauthorized travel and an alarm is output.

That is, the alarm sounds as the state 66A of the on-board unit for traveling when moving from the communication area 51 to the parking lot area 52 on the movement path 65A shown in FIG. Further, the alarm sounds as the state 66B of the on-board unit also for traveling when moving from the parking lot area 52 through the movement route 65B.

However, traveling on the movement path 65A after warehousing shown in FIG. 4 is a normal operation, and an alarm should not be output. In addition, since the travel on the movement route 65B after warehousing is a non-business travel that is different from the usual one, the sounding of the alarm is appropriate.

If the range from the place where the vehicle 61A is stored to the parking lot area 52 is within the range of the communication area 51, no warning is output for traveling on the movement route 65A. However, in order to widen the communication area 51, it is necessary to install the access point 54 or its antenna at a plurality of places or lay a cable for connection over a long distance, which increases the cost of equipment. Is inevitable, and not all companies can install such equipment.

As shown in FIG. 5, the vehicle-mounted device 60 of the present embodiment gives an alarm as the state 66C of the vehicle-mounted device when the vehicle 61A travels from the communication area 51 to the parking lot area 52 through the movement path 65C after warehousing. It is equipped with an alarm suppression function to prevent the sound from ringing. The control described in the first embodiment may be applied to this alarm suppression function, but the control described later is adopted in consideration of the possibility that the position detection operation becomes unstable.

Further, as shown in FIG. 5, when the vehicle 61B parked in the parking lot area 52 travels on the movement route 65D without performing the predetermined warehousing procedure, it is not a normal business operation, so that the vehicle-mounted device is in a state. The alarm of the on-board unit 60 sounds as 66D.

<System configuration example including in-vehicle device>
FIG. 6 shows a configuration example of a system including an in-vehicle device according to an embodiment of the present invention.
As shown in FIG. 6, an office PC 53a and a wireless LAN server 53b are installed in the office building 53. In addition, love and others between the office PC 53a and the wireless LAN server 53b are connected via a wired LAN 53c. Further, the access point 54 installed outside the office building 53 is connected to the wireless LAN server 53b. The access point 54 can form the communication area 51 shown in FIGS. 4 and 5.

The office PC53a is equipped with the same hardware and basic software as a personal computer (PC) having a general configuration, and is further equipped with special application software for analyzing operation data acquired from each vehicle.

As shown in FIG. 6, the vehicle-mounted device 60, the wireless LAN device 62, and the wireless LAN antenna 63 are mounted on the vehicle. The on-board unit 60 corresponds to a device in which the digital tachograph on-board unit 20 and the on-board device 10 shown in the first embodiment described above are combined and integrated. However, the wireless LAN device 62 instead of the wireless LAN module 12 is connected to the outside of the vehicle-mounted device 60. Further, the operation of the vehicle-mounted device 60 is slightly different from that of the first embodiment.

Further, as shown in FIG. 6, an ignition signal SG-IG is applied from the vehicle side to the input of the vehicle-mounted device 60 of the present embodiment. This ignition signal SG-IG is an on / off binary signal, and is turned on when the engine of the vehicle is started and turned off when the engine is stopped. The operation of the vehicle-mounted device 60 changes according to the state of the ignition signal SG-IG.

<Operation example of in-vehicle device>
FIG. 7 shows an operation example of the in-vehicle device according to the embodiment of the present invention. That is, when the crew performs a predetermined warehousing operation (for example, a predetermined button operation) while the vehicle exists in the communication area 51 shown in FIGS. 4 and 5, the processes after step S31 shown in FIG. 7 are executed. Will be done.

In step S31, the on-board unit 60 receives the warehousing operation of the crew and executes the warehousing process. That is, the in-vehicle device 60 communicates with the wireless LAN server 53b via the wireless LAN device 62, the wireless LAN antenna 63, and the access point 54, and the in-vehicle device 60 holds the vehicle on the day of operation. The data is transmitted to the wireless LAN server 53b. When this is completed, the on-board unit 60 shifts to the warehousing state.

In step S32, the on-board unit 60 identifies whether or not it is in the “undelivered voice suppression mode”. For example, when a crew member presses a special button, it is regarded as "undelivered voice suppression mode". In the case of the "undelivered voice suppression mode", the process proceeds to S34, and in the case of the "undelivered voice suppression mode", the process proceeds to S33.

In step S33, when the vehicle-mounted device 60 detects the traveling of the own vehicle in the undelivered state, the vehicle-mounted device 60 sounds a voice warning of the undelivered vehicle. This operation corresponds to, for example, the states 66A and 66B of the on-board unit shown in FIG.

In step S34, when the vehicle-mounted device 60 detects the traveling of the own vehicle while the vehicle-mounted device 60 has not been delivered, the length of the elapsed time T1 from the start of traveling is grasped, and the length of the elapsed time is determined. It is compared with a predetermined threshold value T1max for a certain period of time. If the vehicle travels within a certain period of time, the process proceeds to S35, and if the vehicle travels beyond a certain period of time, the process proceeds to S38. This fixed time is determined in advance for each company, for example, according to the running within the range of normal business that is expected to be performed after warehousing.

In step S35, the on-board unit 60 considers the vehicle to be an acceptable travel even if the vehicle is in a traveling state after the warehousing, because it is within a certain period of time, and does not output a voice warning of not being delivered. This operation corresponds to, for example, the state 66C of the in-vehicle device shown in FIG.

In step S36, the vehicle-mounted device 60 monitors the state of the ignition signal SG-IG to identify the state of the own vehicle. First, if the ignition signal SG-IG has never been turned off after the vehicle is in the warehousing state (after the communication is completed), the in-vehicle device 60 is in the running state after the warehousing. Is considered to be an acceptable run and returns from S36 to S34. Further, when the ignition signal SG-IG is once turned off and then switched on, the length of the time T2 from when it is turned off until it is switched on is grasped, and this time is set as the threshold value T2max for a certain period of time. By comparison, if it is within a certain period of time, the vehicle-mounted device 60 considers the traveling to be acceptable and returns from S36 to S34. It should be noted that "T1max> T2max". Further, when the ignition signal SG-IG is turned off twice or more, or when the time T2 exceeds the threshold value T2max, the process proceeds from S36 to S37.

In step S37, the on-board unit 60 considers that the own vehicle is traveling unacceptably without leaving the garage, and outputs a voice warning of the undelivered warehousing. This operation corresponds to, for example, the state 66D of the on-board unit shown in FIG.

Also in step S38, the on-board unit 60 considers that the own vehicle is traveling unacceptably without being delivered, and outputs a voice warning of not being delivered. This operation corresponds to, for example, the state 66D of the on-board unit shown in FIG.

That is, the on-board unit 60 that executes the operation shown in FIG. 7 can suppress the alarm output for the undelivered running under each of the conditions (1) to (3) shown below.
(1) From the completion of communication at the time of warehousing to the time when the ignition signal SG-IG is turned off for the first time, it is considered that the traveling is acceptable.
(2) When the communication at the time of warehousing is completed and the ignition signal SG-IG is turned off and then turned on, the length of time T2 from when it is turned off until it is turned on is within a certain time. If so, it is considered to be an acceptable run.
(3) After the communication at the time of warehousing is completed, if the length of time that the own vehicle is running in the undelivered state is within a predetermined time, it is considered to be acceptable running.

No position information is required under any of the above conditions (1) to (3). Therefore, stable operation is possible even in an environment where radio waves such as GPS are difficult to reach. In addition, by judging whether or not the allowance is acceptable based on the condition (1) above, when the vehicle moves to a parking lot in another place after it is stored, an alarm is issued even in a place where the radio wave of the wireless LAN does not reach. It becomes easy to suppress the occurrence of.

In addition, by judging whether or not the allowance is acceptable under the condition of (2) above, after the vehicle has arrived, the vehicle is temporarily stopped for fuel refueling and daily report creation, and then the engine is restarted. When moving to a parking lot in another place, it becomes easy to suppress the occurrence of an alarm even in a place where the radio wave of the wireless LAN does not reach.

In addition, by determining whether or not the vehicle is acceptable based on the condition (3) above, if the vehicle to be managed makes an illegal move outside of work while it is still undelivered, it will be detected reliably and an alarm will be output. Will be possible. That is, there is a high possibility that normal operations such as moving to a predetermined parking lot, refueling, and preparing a daily report will be performed within a certain period of time after warehousing. In addition, when moving from the parking lot for leaving the parking lot, the mileage is relatively short, so that the length of travel time is limited. Therefore, if such a condition is not satisfied, there is a high possibility of illegal driving, and it is necessary to output an alarm.

Here, the features of the above-described embodiment of the in-vehicle device 10 according to the present invention are briefly summarized and listed below in [1] to [7], respectively.
[1] A receiving unit (wireless LAN module 12) that receives a warehousing signal indicating that the vehicle has been warehousing from the outside of the vehicle via wireless communication.
When the warehousing signal is received, a state determination unit (microcomputer 11) that determines that the vehicle has shifted from the warehousing state to the warehousing state, and
A traveling determination unit (S12) for determining whether or not the vehicle is traveling, and
After the state determination unit determines that the vehicle has entered the warehousing state, an alarm is issued when the reception unit has not received the warehousing signal and the travel determination unit determines that the vehicle is running. Alarm output unit (S21) that outputs
A permissible travel determination unit (S13, S14) for determining whether or not the vehicle is allowed to travel in the warehousing state is provided.
When the alarm output unit determines that the travel is permitted by the allowable travel determination unit, the alarm output unit suppresses the output of the alarm (S15).
An in-vehicle device characterized by this.

[2] A position acquisition unit (GPS receiver 13) for acquiring a position signal indicating the position of the vehicle is provided.
The permissible travel determination unit determines that the travel of the vehicle whose position is included in the predetermined region (specific region 34) is the permissible travel (S14).
The in-vehicle device according to the above [1].

[3] The permissible running determination unit determines that the running of the vehicle within a predetermined time after the receiving unit receives the warehousing signal is the permissible running (S13).
The in-vehicle device according to the above [1] or [2].

[4] When the permissible travel determination unit detects a predetermined input operation by the crew, it determines that the travel of the vehicle is the permissible travel (S19).
The in-vehicle device according to the above [1].

[5] When the permissible travel determination unit detects a predetermined input operation by the crew after determining that the vehicle is traveling as the permissible travel, the permissible travel determination unit switches to a direction of limiting the permissible conditions for the determination. (S16, S18)
The vehicle-mounted device according to any one of the above [1] to [4].

[6] The permissible travel determination unit monitors the state of the ignition signal of the vehicle after the wireless communication at the time of warehousing in the vehicle is completed, and at least the ignition signal (SG-IG) is turned off first. Until then, it is determined that the traveling of the vehicle is the permitted traveling (S36).
The vehicle-mounted device (vehicle-mounted device 60) according to the above [1].

[7] The permissible travel determination unit monitors the state of the ignition signal (SG-IG) of the vehicle after the wireless communication at the time of warehousing in the vehicle is completed, and the ignition signal is turned off first. If the elapsed time from the time to the next turning on is less than a predetermined time, it is determined that the traveling of the vehicle is the permitted traveling (S36).
The vehicle-mounted device (vehicle-mounted device 60) according to the above [1] or [6].

10 In-vehicle device 11 Microcomputer 12 Wireless LAN module 13 GPS receiver 14 Operation unit 15 Button interface 16 Voice interface 17 Speaker 18 Interface 20 Digital tachograph In-vehicle device ANT1, ANT2 Antenna 30 Parking lot side wireless LAN equipment 31 Parking lot 32 Parking lot entrance 33 Narrow area communicable area 34 Specific area 41, 42 Vehicle 41a Travel locus 51 Communication area 52 Parking area 53 Office building 53a Office PC
53b Wireless LAN server 53c Wired LAN
54 Access point 60 On-board unit 61A, 61B Vehicle 62 Wireless LAN device 63 Wireless LAN antenna 65A, 65B, 65C, 65D Movement route 66A, 66B, 66C, 66D On-board unit status SG-IG ignition signal

Claims (7)

A receiving unit that receives a warehousing signal indicating that the vehicle has arrived from the outside of the vehicle via wireless communication.
When the warehousing signal is received, a state determination unit that determines that the vehicle has changed from the warehousing state to the warehousing state, and
A traveling determination unit that determines whether or not the vehicle is traveling,
After the state determination unit determines that the vehicle has entered the warehousing state, an alarm is issued when the reception unit has not received the warehousing signal and the travel determination unit determines that the vehicle is running. Alarm output unit that outputs
A permissible running determination unit for determining whether or not the running of the vehicle in the warehousing state is permissible is provided.
The on-vehicle device is characterized in that the alarm output unit suppresses the output of the alarm when it is determined by the permissible travel determination unit that the travel is permitted. A position acquisition unit for acquiring a position signal indicating the position of the vehicle is provided.
The vehicle-mounted device according to claim 1, wherein the permissible travel determination unit determines that the travel of the vehicle whose position is included in the predetermined region is the permissible travel. The first or second aspect of the present invention, wherein the allowable traveling determination unit determines that the traveling of the vehicle within a predetermined time after the receiving unit receives the warehousing signal is the permitted traveling. In-vehicle device. The vehicle-mounted device according to claim 1, wherein the allowable traveling determination unit determines that the traveling of the vehicle is the permitted traveling when the crew detects a predetermined input operation. The permissible travel determination unit is characterized in that, when it detects that the vehicle is traveling as the permissible travel and then detects a predetermined input operation by the crew, it switches in a direction of limiting the permissible conditions for the determination. The vehicle-mounted device according to any one of claims 1 to 4. The allowable travel determination unit monitors the state of the ignition signal of the vehicle after the wireless communication at the time of warehousing in the vehicle is completed, and at least until the ignition signal is first turned off of the vehicle. The vehicle-mounted device according to claim 1, wherein the traveling is determined to be the permitted traveling. The permissible travel determination unit monitors the state of the ignition signal of the vehicle after the wireless communication at the time of warehousing in the vehicle is completed, and from the time when the ignition signal is first turned off to the time when the ignition signal is turned on next. The vehicle-mounted device according to claim 1 or 6, wherein if the elapsed time is less than a predetermined time, it is determined that the traveling of the vehicle is the permitted traveling.

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