JP2018037933A - Train guide device, train guide display device and rainy weather determination method for train guide device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a train guide device capable of automatically performing train guide in accordance with weather.SOLUTION: A train guide device comprises: a rainy weather condition storage section 12 which stores rainy weather determination condition data; a rainy weather determination section 13 which determines whether or not weather at a place where a train 100 currently travels is rainy and outputs rainy weather determination result data; a train guide storage section 14 which stores rainy time train guide data; a train guide control section 15 which outputs a rainy time train guide instruction when the rainy weather determination result data is input and the same indicates rainy weather; and a train guide section 18 which performs a rainy time train guide with the rainy time train guide instruction input therein. Or, the train guide device may have a weather determination condition storage section in place of the rainy weather determination condition storage section 12 and a weather determination section in place of the rainy weather determination section 13 so as to enable a train guide to be performed not only for rainy weather but also for other types of weather.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an in-vehicle guide device, an in-vehicle guide display device, and a rainy weather determination method for an in-vehicle guide device.

  In-car announcements for trains are being automated. As an example of a technology related to the automation of in-car announcements, Patent Document 1 discloses an automatic broadcast using an external memory as a storage medium that can easily edit and change the broadcast content without error even if the broadcast content increases and becomes complicated. An apparatus is disclosed.

  On the other hand, in-car announcements according to the weather are made at the discretion of the crew. For example, since the floor in a train vehicle gets wet and slips when it is raining, the crew may make an announcement in the vehicle that urges the passenger to be careful of falling due to slipping depending on the weather. In addition, in-car announcements may be made in the same way to call attention so that an umbrella is not left behind when it rains. Judgment of the weather and the determination of whether or not to make an in-car announcement are based on the determination of the crew.

JP 2000-341229 A

  However, according to the above conventional technology, it is possible to cope with the increase and complexity of the broadcast contents, but the announcement in the vehicle according to the weather must be made by the crew at the discretion of the crew, and the announcement in the vehicle according to the weather There was a problem that could not be automated.

  The present invention has been made in view of the above, and an object of the present invention is to provide an in-vehicle guide device capable of automating in-vehicle announcements according to the weather.

  In order to solve the above-described problems and achieve the object, the present invention is an in-vehicle guide device that is installed in a vehicle and automatically performs in-vehicle guidance according to the weather when external information is input, and the weather determination condition A weather determination condition storage unit that stores data, and a weather determination unit that determines the weather of the current travel location of the vehicle based on the external information and the weather determination condition data, and outputs weather determination result data An in-vehicle guidance storage unit that stores in-vehicle guidance data according to the weather, the in-vehicle guidance control unit that receives the weather determination result data and outputs an in-vehicle guidance command according to the weather determination result data; And an in-vehicle guide unit that receives the in-vehicle guide command and performs in-vehicle guidance according to the weather.

  According to the present invention, there is an effect that in-vehicle announcements according to the weather can be automated.

The block diagram which shows the example of 1 structure of a vehicle provided with the in-vehicle guide apparatus concerning embodiment Flowchart showing an operation example of the rain determination unit The figure which shows the 1st example of the actual measurement result which makes a horizontal axis | shaft time at a fixed point and makes a vertical axis | shaft relative humidity [%] and atmospheric pressure [hPa]. The figure which shows the 2nd example of the actual measurement result in which a horizontal axis is time and the vertical axis is relative humidity [%] and atmospheric pressure [hPa] at a fixed point. The figure which shows an example of the display screen of the display part which performs in-car guidance display at the time of rain The figure which shows one general structural example of the hardware which implement | achieves the in-vehicle guide apparatus shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a vehicle guidance device, a vehicle guidance display device, and a rain detection method for a vehicle guidance device according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a block diagram illustrating a configuration example of a vehicle including an in-vehicle guide device according to an embodiment of the present invention. An in-vehicle guide device 10 shown in FIG. 1 is mounted on a train vehicle 100. 1 determines whether the current driving location of the vehicle 100 is rainy based on the input external information, and the current driving location of the vehicle 100 is rainy. In the rain, in-car guidance broadcasting or in-car guidance display is automatically performed. Although only vehicle 100 is shown in FIG. 1, a train formed by a plurality of vehicles is also included in the present invention.

  The in-vehicle guide device 10 includes an input unit 11, a rainy weather determination condition storage unit 12, a rainy weather determination unit 13, an in-car guide storage unit 14, an in-car guidance control unit 15, an audio broadcast output unit 16 and a display unit 17. And an in-car guide 18.

  The input unit 11 receives external information from the central device 20 and outputs external information data that can be received by the rain determination unit 13.

  The rainy weather determination condition storage unit 12 stores rainy weather determination condition data. The rain determination unit 13 uses the external information data from the input unit 11 and the rain determination condition data from the rain determination condition storage unit 12 to determine whether or not the weather at the current travel location of the vehicle 100 is rainy. To output rainy weather determination result data.

  The in-vehicle guide storage unit 14 stores in-vehicle guide data in case of rain. The in-car guidance control unit 15 receives the rainy weather judgment result data from the rainy weather judgment unit 13 and outputs a rainy weather car guidance broadcast command and a rainy car interior guidance display command when the rainy weather judgment result data indicates rainy weather. To do. The rainy weather in-car guidance broadcast command and the rainy weather in-car guidance display command are collectively referred to as a rainy weather in-car guide command or simply a command.

  The sound broadcasting output unit 16 performs in-car guidance broadcasting in rainy weather based on the in-car guidance broadcasting command from the in-car guidance control unit 15. The display unit 17 performs in-car guidance display in the rainy weather based on the in-car guidance display command from the in-car guidance control unit 15. The rainy weather in-car guidance broadcast and the rainy weather in-car guidance display are collectively referred to as rainy weather in-car guidance.

  The central device 20 includes an input / output interface unit 21. The input / output interface unit 21 receives information from the humidity sensor 30, the atmospheric pressure sensor 40, the wiper control device 50, the illuminance sensor 60, and the on-vehicle wireless device 70 as an external input. It outputs to the input part 11 of the in-vehicle guide apparatus 10 as information.

  The humidity sensor 30 measures the humidity outside the mounted vehicle 100 and outputs humidity information including the measured humidity. The atmospheric pressure sensor 40 measures the atmospheric pressure outside the mounted vehicle 100 and outputs atmospheric pressure information including the measured atmospheric pressure.

  The wiper control device 50 controls the operation of a wiper (not shown) and outputs wiper operation information. The wiper is attached to at least the front surface of the vehicle 100, and performs an operation of wiping off water droplets attached to the front surface when it rains. Here, the wiper operation information is information indicating whether or not the wiper is operating. The illuminance sensor 60 measures the illuminance outside the mounted vehicle 100 and outputs illuminance information including the measured illuminance.

  The on-board wireless device 70 transmits and receives information to and from the ground wireless station 80 by wireless communication. The ground radio station 80 is connected to the network 90. The network 90 can be exemplified by the Internet, and information on the network 90 is referred to as external network information. The external network information includes weather information on the Internet site. The on-vehicle wireless device 70 outputs the acquired external network information to the input / output interface unit 21.

  The rain determination unit 13 uses the humidity information, the atmospheric pressure information, the illuminance information, the wiper operation information, and the external network information included in the external information data to determine whether the weather at the current travel location of the vehicle 100 is rainy or not. Determine whether or not. In addition, when both humidity information and atmospheric pressure information are included, it is referred to as humidity and atmospheric pressure information. The rain determination unit 13 can perform rain determination as described below by using both humidity and atmospheric pressure information, that is, both humidity information and atmospheric pressure information.

  First, the rain determination performed by the rain determination unit 13 using the atmospheric pressure information and the humidity information will be described. FIG. 2 is a flowchart illustrating an operation example of the rain determination unit 13. In the description of FIG. 2, the in-car guidance display command in rainy weather and the in-vehicle guidance broadcast command in rainy weather are collectively referred to as commands.

  First, the process is started, and the rainy weather determination unit 13 determines whether or not the previous determination result is rainy (S1). When the previous determination result is rainy (S1: Yes), the rain determination unit 13 determines whether or not the atmospheric pressure of the atmospheric pressure information is increasing (S2). When the atmospheric pressure is increasing (S2: Yes), the rain determining unit 13 determines whether or not the relative humidity of the humidity information is equal to or less than the relative humidity determination threshold value (S3). When the relative humidity is equal to or less than the relative humidity determination threshold value (S3: Yes), the rainy weather determination unit 13 determines that the rainy weather is over, stops outputting the command (S4), and ends the process.

  When the atmospheric pressure is not increasing (S2: No) or when the relative humidity is not less than or equal to the relative humidity determination threshold value (S3: No), the rain determination unit 13 determines that the rain is continued and continues to output the command. (S5) The process ends.

  When the previous determination result is not rainy (S1: No), the rainy weather determination unit 13 determines whether or not the atmospheric pressure of the atmospheric pressure information is decreasing (S6). When the atmospheric pressure is decreasing (S6: Yes), the rainy weather determination unit 13 determines whether or not the relative humidity of the humidity information has increased beyond the relative humidity change amount threshold (S7). When the relative humidity has increased beyond the relative humidity change amount threshold value (S7: Yes), the rainy weather determination unit 13 determines that the rainy weather has started and starts outputting a command (S8). End.

  When the atmospheric pressure is not decreasing (S6: No) or when the relative humidity has not increased beyond the relative humidity change threshold (S7: Yes), the rain determination unit 13 determines that it is not rain, The state where the command is not output is continued (S9), and the process is ended. In addition, the rainy weather determination part 13 repeats said operation | movement flow with a fixed period.

  FIG. 3 is a diagram showing a first example of actual measurement results at a fixed point where the horizontal axis is time and the vertical axis is relative humidity [%] and atmospheric pressure [hPa]. FIG. 3 also shows the rainfall period. In FIG. 3, the atmospheric pressure starts to decrease at about 0:30 on the first day indicated by A1, and the increase in relative humidity per hour exceeds about 5% at about 13:50 indicated by A2. The rain determination unit 13 determines that it is raining in A2, and the in-vehicle guidance control unit 15 outputs a command based on the rain determination result data at this time.

  Thereafter, in FIG. 3, the atmospheric pressure starts to increase at around 4:40 on the second day indicated by A3, and the relative humidity becomes 70% or less at around 13:40 indicated by A4. The rainy weather determination unit 13 determines that the rain has stopped in A4, and the in-vehicle guidance control unit 15 stops outputting the command based on the rainy weather determination result data at this time.

  FIG. 4 is a diagram illustrating a second example of actual measurement results at a fixed point where the horizontal axis is time and the vertical axis is relative humidity [%] and atmospheric pressure [hPa]. FIG. 4 also shows the rainfall period. In FIG. 4, the atmospheric pressure starts to decrease at about 0:30 on the first day indicated by B1, and the increase in relative humidity per hour exceeds 5% at about 12:10 indicated by B2. The rain determination unit 13 determines that it is raining in B2, and the in-vehicle guide control unit 15 outputs a command based on the rain determination result data at this time.

  Thereafter, in FIG. 4, the atmospheric pressure begins to increase around 19:00 on the first day indicated by B3, and the relative humidity becomes 70% or less around 8:30 on the second day indicated by B4. The rainy weather determination unit 13 determines that the rain has stopped in B4, and the in-vehicle guide control unit 15 stops outputting the command based on the rainy weather determination result data at this time.

  Next, rain determination performed by the rain determination unit 13 using the illuminance information will be described. In general, the illuminance during clear weather ranges from 100,000 lux to 120,000 lux, the illuminance during clear weather ranges from 50,000 lux to 100,000 lux, and the illuminance during cloudy weather ranges from 10,000 lux to 50,000 lux. Illuminance is from 5,000 lux to 20,000 lux. Therefore, the rainy weather determination unit 13 can determine that it is rainy if the illuminance information is 5,000 lux to 20,000 lux. It should be noted that when passing through the tunnel, the illuminance is low regardless of the weather, so the driving determination using the illuminance information is not performed at the position of the tunnel based on the kilometer.

  Next, rain determination performed by the rain determination unit 13 using the wiper operation information will be described. As described above, the wiper operation information is information indicating whether or not the wiper is operating. When the wiper operation information indicates that the wiper is operating, the rain determining unit 13 can determine that it is raining.

  Next, rain determination performed by the rain determination unit 13 using external network information will be described. As described above, the external network information includes weather information on the Internet site. The rainy weather determination unit 13 can determine whether or not it is rainy by comparing the current position based on the kilometer information of the vehicle 100 with the weather information on the Internet site included in the external network information. . By acquiring external network information with an existing on-vehicle wireless device, it is possible to determine whether or not it is raining without mounting a humidity sensor, an atmospheric pressure sensor, or an illuminance sensor.

  Alternatively, when the information on the preceding train is included in the external network information, the rain determining unit 13 may determine whether or not it is raining with reference to the information that the traveling position of the preceding train is rainy. Good.

  Here, in-vehicle guidance display performed by the audio broadcast output unit 16 and the display unit 17 will be described. The content of the in-car guidance broadcast performed by the audio broadcast output unit 16 is not necessary except during rainy weather, and may be content that needs to be broadcast during rainy weather or content that is preferably broadcast during rainy weather. In other words, in-car guidance broadcasts in the rainy weather can be exemplified by broadcasts that call attention to misplacement of umbrellas and broadcasts that call attention to falls because it is slippery due to the wet walking surface. According to the in-car guidance broadcast in the rainy weather by the audio broadcast output unit 16, it is possible to audibly alert in the rainy weather.

  The content of the in-car guidance display on the rainy day performed by the display unit 17 is not necessary except in rainy weather, as in the case of the audio broadcast output unit 16, and is the content that needs to be displayed in rainy weather or the content that is preferably displayed in rainy weather. That's fine. According to the in-car guidance display during rainy weather by the display unit 17, it is possible to visually alert when raining.

  FIG. 5 is a diagram illustrating an example of a display screen of the display unit 17 that performs in-car guidance display in rainy weather. The display screen 17a shown in FIG. 5 is divided into two parts, “Next is A station” is displayed at the top, “Please be careful not to forget your umbrella” is displayed at the bottom, A reminder for misplaced umbrellas is displayed. In this way, when it rains, the display unit 17 displays contents that are unnecessary except during rainy weather and that require display during rainy weather or that are preferably displayed during rainy weather. That is, when the display unit 17 is divided into a plurality of screen areas and the in-car guidance display is displayed on any of the plurality of screen areas, the next station display and the in-car guidance display for alerting can be displayed side by side. Therefore, the passenger can be effectively alerted. The present invention also includes an in-vehicle guidance display device including the display unit 17.

  1 includes both the audio broadcast output unit 16 and the display unit 17. However, the present invention is not limited to this, and the audio broadcast output unit 16 and the display unit 17 are not limited thereto. The structure provided with either one may be sufficient.

  The in-vehicle guide device 10 of the present embodiment described above includes at least a processor, a storage circuit, an input unit, an audio broadcast output unit, and a display unit, and the operation of each component is realized by software. be able to.

  FIG. 6 is a diagram illustrating a general configuration example of hardware for realizing the in-vehicle guide device 10 illustrated in FIG. 1. 6 includes an input unit 101, a processor 102, a storage circuit 103, an audio broadcast output unit 104, and a display unit 105.

  The input unit 101 corresponds to the input unit 11 illustrated in FIG. 1 and is an interface that receives external information. The processor 102 performs calculation and control by software using the received external information data, thereby realizing the rainy weather determination unit 13 and the in-vehicle guidance control unit 15. The storage circuit 103 stores the received external information data or data and software necessary for the processor 102 to perform calculation and control, and realizes the rainy weather determination condition storage unit 12 and the in-vehicle guide storage unit 14. The audio broadcast output unit 104 corresponds to the audio broadcast output unit 16 and performs in-car guidance broadcasting in rainy weather. The display unit 105 corresponds to the display unit 17 and performs in-vehicle guidance display during rainy weather. Note that a plurality of input units 101, processors 102, storage circuits 103, audio broadcast output units 104, and display units 105 may be provided.

  As described above, according to the present embodiment, it is possible to automatically detect that the current travel location of the vehicle is rainy and to automatically perform in-car guidance when it is raining.

  In the present embodiment, an in-vehicle guide device has been described in which rain is determined based on external information and the in-vehicle guidance is automatically performed in case of rain. However, the present invention is not limited to this. As an example, based on the temperature information of the temperature sensor, in-vehicle guidance may be given that heat stroke should be noted when the outside of the vehicle is hot, and heat stroke should be noted when the amount of solar radiation is large. Therefore, the configuration shown in FIG. 1 is not limited to rainy weather determination. Instead of the rainy weather determination condition storage unit, the weather determination condition storage unit storing the weather determination condition data and the rainy weather determination unit are used. Based on external information and weather determination condition data, a vehicle is used for determining the weather at the current travel location of the vehicle and outputting the weather determination result data. A guidance storage unit, an in-vehicle guidance control unit that receives weather determination result data and outputs an in-vehicle guidance command according to the weather determination result data, and an in-vehicle guide that receives the in-vehicle guidance command and performs in-vehicle guidance according to the weather An in-vehicle guide device including a guide unit is also included in the present invention.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

  DESCRIPTION OF SYMBOLS 10 Car interior guidance apparatus, 11 Input part, 12 Rainy weather judgment condition memory | storage part, 13 Rainy weather judgment part, 14 Car interior guidance memory | storage part, 15 Car interior guidance control part, 16 Voice broadcast output part, 17 Display part, 17a Display screen, 18 Car interior guidance Unit, 20 central unit, 21 input / output interface unit, 30 humidity sensor, 40 barometric pressure sensor, 50 wiper control unit, 60 illumination sensor, 70 on-board radio unit, 80 ground radio station, 90 network, 100 vehicle, 101 input unit, 102 processor, 103 storage circuit, 104 audio broadcast output unit, 105 display unit.

Claims (8)

An in-vehicle guidance device that is installed in a vehicle and automatically performs in-vehicle guidance according to the weather when external information is input,
A weather determination condition storage unit storing weather determination condition data;
Based on the external information and the weather determination condition data, a weather determination unit that determines the weather of the current travel location of the vehicle and outputs weather determination result data;
In-vehicle guidance storage unit storing in-vehicle guidance data according to the weather,
An in-vehicle guidance control unit that receives the weather determination result data and outputs an in-vehicle guidance command according to the weather determination result data;
An in-vehicle guide device comprising: an in-vehicle guide unit that receives the in-vehicle guide command and performs in-vehicle guidance according to the weather. An in-vehicle guidance device that is installed in a vehicle and automatically performs in-vehicle guidance according to the weather when external information is input,
A rainy weather judgment condition storage unit storing rainy weather judgment condition data;
Based on the external information and the rain condition determination condition data, it is determined whether or not the weather of the current travel location of the vehicle is rain, and rain determination unit that outputs rain determination result data;
In-vehicle guidance storage unit storing in-car guidance data in rainy weather,
When the rainy weather determination result data is input and the rainy weather determination result data indicates that it is raining, an in-vehicle guidance control unit that outputs an in-car guidance command during rainy weather,
An in-vehicle guide device comprising: an in-vehicle guide section that receives the in-vehicle guide command in the rain and performs in-vehicle guidance in the rain.   The in-vehicle guide device according to claim 1 or 2, wherein the external information includes one or more of humidity and atmospheric pressure information, wiper operation information, illuminance information, and external network information.   The in-vehicle guide device according to claim 3, wherein the external network information includes weather information on an Internet site.   The in-vehicle guide device according to claim 1, wherein the in-vehicle guide unit includes an audio broadcast output unit that performs in-car guide broadcast in rainy weather.   The in-vehicle guide device according to claim 1, wherein the in-vehicle guide unit includes a display unit that displays an in-vehicle guide during rainy weather. An in-vehicle guide display device including the display unit provided in the in-vehicle guide device according to claim 6,
The display unit is divided into a plurality of screen areas;
An in-vehicle guidance display device that displays the in-car guidance during rainy weather on any of the plurality of screen areas. Determining whether or not the previous determination result is rainy,
If the previous determination result is rainy, determining whether the atmospheric pressure is rising;
If the atmospheric pressure is rising, determining whether the relative humidity is below a relative humidity determination threshold;
When the relative humidity is equal to or less than the relative humidity determination threshold, it is determined that the rain is over, and the output of the in-car guidance command in the rain is stopped.
When the atmospheric pressure is not rising or when the relative humidity is not less than or equal to the relative humidity determination threshold value, it is determined that the rain continues, and the output of the in-car guidance command in the rain is continued.
If the previous determination result is not rainy, determining whether or not the atmospheric pressure is falling;
If the atmospheric pressure is decreasing, determining whether the relative humidity has increased above a relative humidity change threshold; and
When the relative humidity has risen beyond the relative humidity change amount threshold value, it is determined that it starts raining, and starts outputting an in-car guidance command in rainy weather,
When the atmospheric pressure is not decreasing or when the relative humidity has not increased beyond the relative humidity change amount threshold value, it is determined that it is not raining, and a state in which the in-vehicle guidance command is not output when it rains is continued. The rain determining method of the in-vehicle guide device performed by the rain determining unit of the in-vehicle guide device according to claim 2.

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