JP6042671B2 - OBE - Google Patents

Description

  The present invention relates to a vehicle-mounted device.

  In recent years, business vehicles such as trucks are often equipped with an operation recording device called a digital tachograph as a vehicle-mounted device. The digital tachograph is mounted on a vehicle in order to automatically collect information on travel speed, travel distance, travel time, and the like (see, for example, Patent Document 1).

JP 2008-107890 A

  Among in-vehicle devices such as digital tachographs, it is determined whether or not the vehicle on which the on-vehicle device is mounted is in an idling state, and if it is determined that the vehicle is in an idling state, an alarm sound is output. Some have the function to do.

  According to the vehicle-mounted device having this function, the release of the idling state can be promoted by notifying the driver or the passenger that the vehicle is in the idling state.

  In recent years, further improvements in convenience of these vehicle-mounted devices have been demanded.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the onboard equipment which improved the convenience.

In order to achieve the above-described object, the vehicle-mounted device according to the present invention is characterized by the following (1) to (2).
(1) An on-vehicle device provided with an alarm unit that is mounted on a vehicle and used to output an alarm sound when it is determined that the vehicle is idling.
An input unit that accepts a cancel input of various inputs;
A switching unit that selectively switches between a normal mode that outputs the alarm sound and a break mode that does not output the alarm sound, and the input unit receives the cancel input when the normal mode is selected A switching unit for switching from the normal mode to the break mode;
With
The alarm unit outputs the alarm sound when the normal mode is selected and outputs the alarm sound when the rest mode is selected when it is determined that the vehicle is idling. Configured to not
When the normal mode is selected and the input unit receives the cancel input when the vehicle is running, the switching unit immediately after switching from the normal mode to the rest mode, Switch to normal mode ,
about.
(2) The vehicle-mounted device configured as described in (1) above,
The switching unit switches from the rest mode to the normal mode when it is determined that the vehicle has started running when the rest mode is selected.
about.

In the vehicle-mounted device having the above configuration (1), when a cancel input is received, a transition is made to a break mode in which no alarm sound is output even when the vehicle is idling. For this reason, if the driver wants to drive the engine to drive the air conditioner and keep the interior warm, such as when taking a break in the car in winter, an alarm can be issued by inputting a cancel input. Sound output can be stopped. As a result, it is possible to prevent the driver from feeling uncomfortable by outputting the warning sound in a state where the warning sound is not necessarily output.
In the vehicle-mounted device having the configuration (2), when the vehicle starts running after receiving the cancel input and transitioning to the rest mode, an alarm sound is output when it is determined that the vehicle is in the idling state. Transition to normal mode. As a result, after the cancel input is input, when driving is started, the alarm sound is output when the vehicle is in the idling state from the rest mode in which the alarm sound is not output when the vehicle is in the idle state. The state of the in-vehicle device automatically changes to the mode. For this reason, the driver does not need to perform an operation for shifting the vehicle-mounted device to the normal mode after inputting a cancel input in order to take a break in the vehicle.

  According to the vehicle-mounted device of the present invention, a vehicle-mounted device with improved convenience can be provided.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a block diagram illustrating a hardware configuration example of a digital tachograph 10 according to the embodiment. FIG. 2 is a flowchart showing a part related to switching between the normal mode and the rest mode in the processing routine after the digital tachograph 10 is activated. FIG. 3 is a flowchart showing a portion related to data recording and output of an idling warning sound in the processing routine after the digital tachograph 10 is activated.

  Specific embodiments of the vehicle-mounted device according to the present invention will be described below with reference to the drawings.

  The digital tachograph 10 according to the embodiment is used by being mounted on a vehicle such as a truck. The digital tachograph 10 roughly determines the function of recording data representing the travel speed, travel distance, travel time, etc. of the mounted vehicle on a memory card, and whether the vehicle is idling. As a result of the determination, it has a function of outputting an alarm sound when it is determined that the vehicle is idling. The digital tachograph 10 has a normal mode for outputting an alarm sound when it is determined to be in an idling state and a break mode for not outputting an alarm sound even when it is determined to be in an idling state. It is switched and used according to the operation.

  FIG. 1 is a block diagram illustrating a hardware configuration example of a digital tachograph 10 according to the embodiment.

  As shown in FIG. 1, a digital tachograph 10 includes a microcomputer (CPU: Central Processing Unit) 101, a card I / F (interface) 102, a speed I / F 103, an engine I / F 104, a power I / F 105, a buzzer 106, An LCD (Liquid Crystal Display) 107, a handy ten key I / F 108, a handy ten key 109, a switch unit I / F 110, and a switch unit 111 are provided. Further, the microcomputer 101 includes an idling calculation unit 112 and a card processing unit 113. Below, these each structure is demonstrated.

  The microcomputer 101 is a control unit, executes a program prepared in advance, and performs various processes necessary for realizing the functions of the digital tachograph 10. For example, the microcomputer 101 performs the processing shown in the flowcharts of FIGS.

  The card I / F 102 is an interface for connecting a recording medium that is a memory card, for example. The memory card is detachably connected to the digital tachograph 10 via a card I / F 102 and configured to record various data. Further, the memory card is detachably attached to, for example, an external device (PC (Personal Computer) or the like, not shown) included in the office system. Thereby, the digital tachograph 10 according to the embodiment transmits the recorded data to the external device via the memory card. When the digital tachograph 10 is operated, the memory card is connected to the digital tachograph 10.

  The speed I / F 103 is an interface for receiving a signal from the vehicle speed sensor. A speed pulse signal generated by the vehicle speed sensor is input to the speed I / F 103. The vehicle speed sensor is, for example, a rotary encoder, and generates a pulse signal of a number corresponding to the transmission speed of the rear wheels (drive wheels) as a pulse signal for travel distance calculation, and outputs it as a speed pulse signal.

  The engine I / F 104 is an interface for receiving a signal from the engine speed sensor. The engine rotation pulse signal generated by the engine speed sensor is input to the engine I / F 104. As the engine speed sensor, either a sensor that mechanically detects the rotation of the camshaft of the engine to generate a pulse signal or a sensor that electrically detects the applied voltage to the spark plug to generate a pulse signal is used. It doesn't matter.

  The power supply I / F 105 is an interface for receiving signals from the battery and the ignition switch. The power supply I / F 105 is supplied with a voltage value signal indicating the energization state of the battery and a signal indicating the state of the ignition switch (ON, accessory mode, OFF). The ignition switch has three states: an off state in which related devices including the engine and the digital tachograph 10 are stopped, an accessory state in which the related devices are driven while the engine is stopped, and an on state in which the engine and related devices are driven. A signal corresponding to the current state of the ignition switch is output to the microcomputer 101 via the power supply I / F 105.

  The buzzer 106 is an audio output device that outputs audio in accordance with a signal received from the microcomputer 101. In the present embodiment, the buzzer 106 outputs an idling warning sound that is a sound for alerting the driver.

  The LCD 107 is a liquid crystal display device that outputs various types of information in accordance with signals received from the microcomputer.

  The handy ten key 109 is a portable small terminal provided with an operation unit (not shown) for manually inputting various information, and can be brought into the vehicle by the crew as necessary. The handy ten key 109 is used, for example, for the user to input work information related to loading, unloading, waiting, rest, etc., and data related to slip contents. The handy ten key 109 is connected to the digital tachograph 10 through a handy ten key I / F 108 by wired or wireless connection. The handy ten key 109 includes a plurality of buttons as an operation unit, and various functions are assigned to the buttons.

  In the digital tachograph 10 according to this embodiment, a function for inputting a cancel input to the microcomputer 101 is assigned to a cancel button (not shown) which is one of the buttons of the handy ten key 109. That is, the cancel button is assigned a function for switching the state of the digital tachograph 10 from the normal mode to the rest mode.

  The switch unit 111 is a terminal including an operation unit (not shown) for manually inputting various information, and is formed in a box shape, for example, and is arranged in the vicinity of the digital tachograph 10. The switch unit 111 is used for a user to input work information related to loading, unloading, standby, rest, etc., and data related to slip contents, as with the handy keypad 109. The switch unit 111 is connected to the digital tachograph 10 via a switch unit I / F 110 by wired or wireless connection. The switch unit 111 includes a plurality of buttons as operation units on the outer surface of the housing, and various operations are assigned to the buttons.

  An idling calculation unit 112 included in the microcomputer 101 determines whether or not the vehicle on which the digital tachograph 10 is mounted is in an idling state. Specific processing in this determination will be described later.

  A card processing unit 113 included in the microcomputer 101 writes various data to a memory card connected via the card I / F 102.

Next, the operation of the digital tachograph 10 will be described.
Hereinafter, regarding the description of the operation of the digital tachograph 10, even the processing by the idling calculation unit 112 and the card processing unit 113 may be described as processing by the microcomputer 101 for the sake of simplicity.

  First, with reference to FIG. 2, the part regarding the switching between the normal mode and the rest mode in the processing routine after the digital tachograph 10 is activated will be described. FIG. 2 is a flowchart showing a part related to switching between the normal mode and the rest mode in the processing routine after the digital tachograph 10 is activated.

  First, the driver turns on the ignition switch or switches to the accessory mode. The microcomputer 101 supplied with the DC voltage (Vcc) starts operation. At the start of this operation, the mode of the digital tachograph 10 is set to the normal mode.

  In step S21, the microcomputer 101 determines whether or not the cancel button of the handy ten key 109 has been pressed. More specifically, the microcomputer 101 determines whether or not a cancel input input by pressing a cancel button is received. As a result of the determination, if it is determined that a cancel input has been accepted, the microcomputer 101 executes the process of step S22. On the other hand, if it is determined as a result of the determination that no cancel input has been received, the microcomputer 101 executes the process of step S21 again.

  In step S22, the microcomputer 101 switches the mode of the digital tachograph 10 from the normal mode to the break mode. Thereafter, the microcomputer 101 executes the process of step S23.

  In step S23, the microcomputer 101 determines whether or not the vehicle has started running. More specifically, the microcomputer 101 determines whether or not the current vehicle speed calculated according to the speed pulse signal received from the speed I / F 103 is equal to or greater than a predetermined threshold. As a result of the determination, if it is determined that the vehicle has started running, the microcomputer 101 executes the process of step S24. On the other hand, if it is determined that the vehicle has not started running as a result of the determination, the microcomputer 101 executes the process of step S23 again.

  In step S24, the microcomputer 101 switches the mode of the digital tachograph 10 from the rest mode to the normal mode. Thereafter, the microcomputer 101 executes the process of step S21 again, and repeatedly executes the process shown in the flowchart of FIG.

  By the above-described processing, the normal mode for outputting an alarm sound when it is determined that the engine is in an idling state and the break mode in which the alarm sound is not output even when it is determined that the engine is in an idling state are operated by the user. It is switched according to. That is, when the user presses the operation button, the mode of the digital tachograph 10 is switched from the normal mode to the break mode. When the vehicle starts running in the break mode, the mode of the digital tachograph 10 returns to the normal mode.

  In the processing in step S23 and step S24 described above, it has been described that the mode of the digital tachograph 10 is switched from the rest mode to the normal mode when the vehicle starts to travel. However, the processing in step S21 and step S22 is performed as the vehicle travels. If the time has been reached, since the vehicle is already running, it is determined in step S23 that the vehicle has always started running. In step S24, the mode of the digital tachograph 10 is switched from the rest mode to the normal mode.

Next, with reference to FIG. 3, a portion related to data recording and idling alarm output in the processing routine after the digital tachograph 10 is activated will be described. FIG. 3 is a flowchart showing a portion related to data recording and output of an idling alarm in the processing routine after the digital tachograph 10 is activated.
2 and FIG. 3 are executed by the microcomputer 101 in parallel.

  First, the driver turns on the ignition switch or switches to the accessory mode. The microcomputer 101 supplied with the DC voltage (Vcc) starts operation.

  In step S31, the microcomputer 101 (card processing unit 113) starts recording data representing the travel speed, travel distance, travel time, and the like of the mounted vehicle on the memory card. More specifically, the microcomputer 101 calculates the current vehicle speed calculated according to the speed pulse signal received from the speed I / F 103 and the current speed calculated according to the engine rotation pulse signal received from the engine I / F 104. Based on the engine speed, the current time, and the like, the travel speed, travel distance, travel time, and the like of the vehicle are calculated for each predetermined time, and processing for writing the calculated data to the memory card is executed.

In step S32, the microcomputer 101 (idling calculation unit 112) determines whether or not the vehicle is idling. More specifically, the microcomputer 101 determines that the ignition switch is turned on based on the current vehicle speed calculated according to the signal received from the ignition switch and the speed pulse signal received from the speed I / F 103. It is determined whether or not the state where the speed is equal to or lower than a predetermined threshold is continued for a predetermined time or more. As a result of the determination, if it is determined that the state has continued for a predetermined time or more, the microcomputer 101 executes the process of step S33. On the other hand, as a result of the determination, when it is determined that the state has not been continued for a predetermined time or more, the microcomputer 101 executes the process of step S32 again.
As a result, the vehicle is in a state where the ignition switch is on (that is, the engine is operating) and the vehicle speed is equal to or lower than a predetermined threshold (that is, the vehicle is stopped). If it continues for a predetermined time or more, it is determined that the vehicle is idling.

  In step S33, the microcomputer 101 determines whether or not the mode of the digital tachograph 10 is the break mode. As a result of the determination, when the mode of the digital tachograph 10 is not the rest mode (that is, when the mode is the normal mode), the microcomputer 101 executes the process of step S34. On the other hand, if it is determined as a result of the determination that the mode of the digital tachograph 10 is the break mode, the microcomputer 101 executes the process of step S32 again.

  In step S34, the microcomputer 101 outputs a signal to the buzzer 106 to start outputting an idling alarm sound.

  In step S35, the microcomputer 101 determines whether or not a condition for canceling the output of the idling warning sound is satisfied. That is, it is determined whether the vehicle is no longer idling. More specifically, the microcomputer 101 determines whether or not the ignition switch is set to the accessory mode and whether or not the vehicle speed is equal to or higher than a predetermined threshold value. As a result of the determination, if it is determined that the idling state is lost, the microcomputer 101 executes the process of step S36. On the other hand, if it is determined that the idling state is continuing as a result of the determination, the microcomputer 101 executes the process of step S35 again.

  In step S36, the microcomputer 101 outputs a signal to the buzzer 106 to stop the output of the idling alarm sound.

  By the processing described above, when the vehicle is in the idling state, when the digital tachograph 10 is in the normal mode, the idling warning sound is output from the buzzer 106 until the idling state is canceled. On the other hand, when the vehicle is idling and the digital tachograph 10 is in the rest mode, no idling warning sound is output.

  Below, the effect | action and effect of the digital tachograph 10 which concern on embodiment are demonstrated.

The digital tachograph 10 according to the embodiment is an on-vehicle device that is used by being mounted on a vehicle and outputs an idling warning sound when it is determined that the vehicle is in an idling state. The digital tachograph 10 includes a handy ten key 109 as an input unit that accepts a cancel input among various inputs. When the hand ten key 109 (cancel button) accepts a cancel input, the vehicle is in an idling state. When it is determined, a transition is made to a break mode in which no idling warning sound is output.
As described above, in the digital tachograph 10, when the cancel input is received, the digital tachograph 10 transits to the rest mode in which the idling warning sound is not output even when the vehicle is in the idling state. For this reason, when the driver wants to drive the engine to keep the interior warm by driving the air conditioner, such as when taking a break in the car in winter, the driver can idle by pressing the cancel button. Alarm sound output can be stopped. As a result, it is possible to prevent the driver from feeling uncomfortable by outputting the warning sound in a state where the warning sound is not necessarily output.
Therefore, according to the digital tachograph 10 according to the present embodiment, a vehicle-mounted device with improved convenience can be provided.

  Further, according to the digital tachograph 10 according to the present embodiment, even when it is not desired to output an idling warning sound because a specific work is being performed, such as during a load loading operation, Alarm sound output can be stopped.

Further, the digital tachograph 10 according to the embodiment outputs an idling warning sound when it is determined that the vehicle has started running after transitioning to the rest mode when the vehicle is determined to be in the idling state. Transition to normal mode.
That is, in the digital tachograph 10 according to the embodiment, when the vehicle starts running in the break mode in which the alarm sound is not output even when it is determined that the vehicle is in the idling state, the mode of the digital tachograph 10 is automatically changed to the normal mode. Return to. Therefore, the driver does not need to perform an operation for switching the digital tachograph 10 to the normal mode after pressing the cancel button to take a break or the like in the vehicle. Therefore, convenience can be further improved.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

  For example, in the digital tachograph 10 according to the present embodiment, in step S32, the microcomputer 101 (idling operation unit 112) determines that the ignition switch is on and the vehicle speed is equal to or lower than a predetermined threshold for a predetermined time or more. In this configuration, it is determined whether or not the engine is idling by determining whether or not the engine is in operation, but it is determined whether or not the engine is driven according to the engine rotation pulse signal received from the engine I / F 104. As a configuration for determining whether or not the engine is idling by determining whether or not the state where the engine is being driven and the vehicle speed is equal to or lower than a predetermined threshold has been continued for a predetermined time or more. It doesn't matter.

  Further, in the digital tachograph 10 according to the present embodiment, in step S35, the microcomputer 101 determines whether or not the idling alarm output cancellation condition is satisfied depending on whether or not the ignition switch is set to the accessory mode. However, it is determined whether the engine is driven according to the engine rotation pulse signal received from the engine I / F 104, and when the engine is stopped, it is determined that the condition for canceling the idling alarm output is satisfied. It does not matter as a structure to do.

  In the digital tachograph 10 according to the present embodiment, a function for inputting a cancel input to the microcomputer 101 is assigned to one of the buttons of the handy ten key 109. A configuration in which the function is assigned to one of them may be used. In this case, in step S21, the microcomputer 101 may determine whether or not the cancel button of the switch unit 111 has been pressed.

  In the digital tachograph 10 according to the present embodiment, when the vehicle starts running in the rest mode by the processing in step S23 and step S24, the mode of the digital tachograph 10 returns to the normal mode. Alternatively, a function for inputting a release input to the microcomputer 101 may be assigned to a release button (not shown) which is one of the buttons of the switch unit 111. In this case, in step S24, the microcomputer 101 may determine whether or not the release button has been pressed.

  In the digital tachograph 10 according to the present embodiment, in step S23, it is determined whether or not the vehicle has started running by determining whether or not the current vehicle speed is equal to or higher than a predetermined threshold. Although it was set as a structure, as a structure which determines whether the vehicle started driving | running | working by determining whether the driving distance of the vehicle after changing to rest mode in step S22 is more than a predetermined threshold value. Alternatively, it may be configured to determine whether or not the vehicle has started running by other known methods.

  In the present embodiment, the digital tachograph 10 has been described as an example of the vehicle-mounted device. However, the vehicle-mounted device is used by being mounted on a vehicle and outputs an alarm sound when it is determined that the vehicle is idling. The present invention is applicable as long as it is possible, and the present invention can be similarly applied to various vehicle-mounted devices such as a drive recorder, a taximeter, and a vehicle-mounted navigation device.

10 Digital tachograph 101 Microcomputer 102 Card I / F
103 Speed I / F
104 Engine I / F
105 Power I / F
106 Buzzer 107 LCD
108 Handy keypad I / F
109 Handy keypad 110 Switch unit I / F
111 Switch Unit 112 Idling Operation Unit 113 Card Processing Unit

Claims (2)

An on-vehicle device provided with an alarm unit that is used by being mounted on a vehicle and outputs an alarm sound when it is determined that the vehicle is in an idling state,
An input unit that accepts a cancel input of various inputs;
A switching unit that selectively switches between a normal mode that outputs the alarm sound and a break mode that does not output the alarm sound, and the input unit receives the cancel input when the normal mode is selected A switching unit for switching from the normal mode to the break mode;
With
The alarm unit outputs the alarm sound when the normal mode is selected and outputs the alarm sound when the rest mode is selected when it is determined that the vehicle is idling. Configured to not
When the normal mode is selected and the input unit receives the cancel input when the vehicle is running, the switching unit immediately after switching from the normal mode to the rest mode, Switch to normal mode ,
In-vehicle device characterized by that. The switching unit switches from the rest mode to the normal mode when it is determined that the vehicle has started running when the rest mode is selected.
The on-vehicle device according to claim 1.

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