JP2001331832A - Digital travel recording system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation management system capable of displaying information such as the road inclination of a traveling area together with travel information in a tachograph for recording traveling information such as traveling time, a vehicle traveling speed and a travel distance. SOLUTION: The tachograph mounted on the vehicle is provided with a GPS receiver, data about the latitude, longitude and altitude of a place where the vehicle travels are received from a satellite, and the road inclination at each traveling place is calculated from the change of altitudes within an infinitesimal time and is displayed together with traveling time data and speed data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital operation recorder mounted on a vehicle.

[Prior art]

[0002] A digital operation recorder is mounted on a vehicle such as a truck and records various operation data such as a running distance. The operation data is automatically calculated based on the value detected by the speed sensor of the vehicle, and is recorded on a recording medium such as a memory card. When this memory card is read by a reader installed in a business office, data is automatically input to a computer connected to the reader and used to automatically create a daily operation report.

[0003] In the above-mentioned digital operation recording device, when a vehicle-mounted device mounted on a vehicle acquires speed data, time data, and mileage data, the vehicle-mounted device uses a GPS (Global Positioning Sys- tem).
tem) function to obtain information such as the current location and traffic conditions of the vehicle equipped with the on-vehicle device, and specify the driving route to the vehicle according to the current location and traffic conditions from the office managing the vehicle. It is common practice to make decisions such as how much time the vehicle needs to reach its destination.

[0004] By the way, in preparing a daily driving report,
In order to easily grasp the operation history of the vehicle in one day, a plurality of types of graph displays showing the operation status of the vehicle in one day are configured and displayed in an arbitrary display form. This makes it possible to display a graph in an appropriate display form as needed, such as when the user wants to know the entire operation status of the day or the operation status during a specific time zone.
The operation status of each vehicle can be known more precisely.

[0005] FIG. 7 shows an example of a graph showing the operation status created by a conventional general digital recorder. (A) is a 24-hour display graph showing the entire operation status of a day, in which the horizontal axis represents the operation time zone and the vertical axis represents the speed ([km / hour]) corresponding to the operation time zone.
(B) is an eight-hour display graph that displays only eight hours of the entire operation of the day. This is to select an arbitrary time zone (8 hours) from the 24-hour display graph of (A) and display the operation status in the selected time zone as a graph on the entire screen.

[0008] (C) shows a four-minute display graph that graphically displays the operation status of only four minutes in an arbitrary time zone of the day, similarly to (B). As a result, the details of the operation status in a specific time zone can be known more precisely.

In general, a digital operation recorder, which is a field to which the technology relating to the present invention belongs, is required to have a function of displaying the above three types of graph display forms.

[Problems to be solved by the invention]

However, the conventional operation status graph display as described above has the following problems. That is, in the conventional operation management, only the data of the time and the speed of the vehicle are recorded, and only by looking at the daily driving report or the tachograph, the traveling according to the actual traveling state of the road (the presence or absence of a slope or a curve). I could not find the record.

For example, as shown in FIG. 8, suppose that a vehicle observing a speed limit on a normal road travels at 60 km / h on a rugged road A (speed limit 50 km / h).
It can be said that there is a high possibility that the speed has been exceeded because the road A is downhill. Just looking at the data of the conventional time and the speed of the vehicle alone cannot distinguish such overspeed driving from the overspeed when driving on normal flat terrain. I couldn't figure out exactly.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, according to the present invention, a vehicle operation management system is mounted on a vehicle and collects and records speed data, time data, and travel distance data of the vehicle as digital data. A recording medium such as a removable memory card, a reading device for reading digital data stored in the recording medium, and a receiver for receiving position data relating to a traveling point of the vehicle from a communication satellite. In a digital operation recorder, gradient data of a traveling point of a vehicle is calculated from the position data, and the stored digital data is displayed simultaneously with the gradient data corresponding to the traveling point. (Claim 1)

According to a second aspect of the present invention, in the vehicle operation management system, a removable memory card mounted on the vehicle for collecting and recording speed data, time data, and travel distance data of the vehicle as digital data. And the like, and a reading device for reading digital data stored in the recording medium, and a receiver for receiving position data and altitude data relating to the traveling point of the vehicle from a communication satellite. In the meter, gradient data of a traveling point of the vehicle is calculated from the position data and the altitude data, and the stored digital data is displayed simultaneously with the gradient data corresponding to the traveling point.

Further, map data including position data and altitude data of a traveling area is stored in a reader, and altitude data is obtained from the map data based on position data read from a recording medium such as a memory card. May be read to calculate the gradient data of the traveling point, and the stored digital data may be displayed simultaneously with the gradient data corresponding to the traveling point (claim 3).

An atmospheric pressure sensor is connected to the reading device or a control unit connected to the reading device, and altitude data obtained from the atmospheric pressure sensor is stored in a recording medium such as a memory card in a time-series manner. When reading the data, the position data and the altitude data may be read to calculate the gradient data of the traveling point, and the stored digital data may be displayed simultaneously with the gradient data corresponding to the traveling point. (Claim 4)

[0014] The displayed digital data and the gradient data corresponding to the traveling point may be displayed in a manner changed according to the value of the gradient data.
(Claim 5)] [Detailed description of the invention]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an in-vehicle apparatus provided with a digital operation recorder according to the present invention. In the figure, reference numeral 1 denotes an in-vehicle device mounted on a vehicle. The in-vehicle device 1 includes a wireless device 2, an antenna 3,
A GPS (Global Positioning System) receiver 4, an antenna 5, a display 8, a sensor 9, and an operation recorder 20 are provided.

The wireless device 2 communicates with a center such as a business office, and transmits and receives data via the antenna 3. The GPS receiver 4 has a communication satellite 6
The position data such as the latitude and longitude sent from the device is received via the antenna 5. The display 8 is composed of a liquid crystal display or the like, is provided on a panel of a driver's seat of the vehicle, and displays various information. The sensor 9 includes various sensors that detect the speed of the vehicle, the number of revolutions of the engine, and the like.

The digital operation recorder 20 includes a controller 7
And a card processing device 10. The control unit 7 includes a CPU 12 that controls the entire in-vehicle device 1,
An operation point table 13 for storing the operated area is provided. Although not shown, the control unit 7 further includes a ROM storing a program, a RAM temporarily storing data, an interface circuit, and the like.

The card processing device 10 comprises a card reader / writer having both a reading function and a writing function. The card 11 is inserted into the card processing device 10. The card 11 is carried by the driver, and is composed of, for example, a memory card having a built-in RAM. However, the present invention is not limited to this, and a magnetic card, an optical card, or the like can be used as the card 11.

FIG. 2 is a block diagram showing the electrical configuration of the data processing device installed in the sales office. The data processing device 21 includes a reading device 14, a computer 15,
A reading device 14 and a printer 16 are connected to a computer 15.

The reading device 14 includes a card reader for reading data recorded on the card 11 described above, and further includes a registration key and a display for registering for leaving or leaving the company. I have. The computer 15 is composed of a personal computer (PC) and includes a well-known display, keyboard, mouse, and the like. The printer 16 creates a daily operation report based on the data processed by the computer 15.

More specifically, the transportation truck T returns to the sales office S after completing a series of operations, and when the operation is completed, the driver removes the card 11 from the vehicle-mounted device 1 and gets off the truck. Then, the user inserts the card 11 into the reading device 14 at the office S, and subsequently operates the leaving registration key of the reading device 14 to register for leaving the company. In the data processing device 21 of the sales office S, the data of the card 11 read by the reading device 14 is processed by the computer 15, and the printer 16 prints and outputs a daily operation report.

A first embodiment for calculating the gradient at the traveling point described above will be described below with reference to FIG. First, the GPS receiver 4 receives data on the latitude, longitude, and altitude of the vehicle from the communication satellite 6. Assuming that the altitude data h received at time T = T1 is h = h1, the altitude data h at time T = T1 + ΔT (ΔT: minute time, for example, 0.5 seconds) is received (for example, h = h1 ′), and From the distance and the travel distance, the gradient of the road at time T = T1 can be obtained. Time T = T1 to T = T
The travel distance between 1 + ΔT may be obtained by a distance sensor (a mechanism for calculating the distance from the number of rotations of the tire) provided in an operation recorder mounted on the vehicle, or G
It may be obtained from the latitude and longitude data received by the PS receiver.

In the above-described embodiment, altitude data at the current position of the vehicle is obtained from the GPS, and the gradient of the road at each traveling point of the vehicle is obtained by receiving the altitude data. The location on the map (position data) is displayed on the map data
May be stored together with the altitude data, and the gradient of the road at each traveling point may be obtained. The above-mentioned altitude data may be stored in the data processing device 21 (for example, in the computer 15) in the business office S, or may be stored in the vehicle-mounted device 1 in advance together with the map data. The procedure in this case will be described below with reference to FIG.

FIG. 5 shows a second embodiment of the present invention, in which altitude data corresponding to a position (position data) on a map is stored on map data of a traveling area, FIG. 5 shows an example of a procedure for obtaining data for obtaining a road gradient for each traveling point. FIG. In this example, a case where map data is stored in the computer 15 is described.

First, the computer 15 is connected to the reading device 14.
Then, the operation record data is downloaded from the memory card 11 and only the position data is extracted (step 1).
Next, the position data is arranged in time series to create a position data table (step 2). In this position data table, the altitude data corresponding to the position data and the road gradient at that position are written. At this time, the columns of the altitude data and the road gradient are blank.

Next, the map data stored in the computer 15 is called (step 3), and the altitude data corresponding to the position data read in step 1 is read (step 4). After the altitude data is written on the data table created in step 2 (step 5), the road gradient at each position data is calculated from the altitude data group and written to a predetermined position in the data table (step 6). .
The method for calculating the road gradient is the same as the method described above, and therefore will not be described.

FIG. 6 shows a third embodiment of the present invention. As the sensor 9, a sensor 9 'for measuring the atmospheric pressure, in addition to a sensor for detecting the speed of the vehicle and the number of revolutions of the engine, is used. Provided and connected to the control unit 7. The operation is started, and at the same time as starting to collect data from the speed of the vehicle, the number of revolutions of the engine, etc., the atmospheric pressure sensor 9 ′ also starts measuring the atmospheric pressure of the outside air during operation, and sends the atmospheric pressure data to the control unit 7. Send. The control unit 7 records the speed data, the time data, and the traveling distance data of the vehicle as digital data on a recording medium (card) 11 inserted in the card processing device 10, and simultaneously converts the atmospheric pressure data into the digital data and the time series. And record it.

The digital data and atmospheric pressure data recorded on the card 11 are calculated by the computer 15 after the card 11 is inserted into the reader 14, and converted into altitude data. Examples of equations for converting atmospheric pressure data into altitude data include the following equations (1) and (2). Also, the method is the same as the above-described method of converting the calculated altitude data into the gradient data, and a description thereof will be omitted. 1 [mmHg] = 13.5951 × 980.665 × 10 ⁻⁴ [hPa] Expression (1) h = 18410.0 × (log ₁₀ 1013.25 -log ₁₀ P) Expression (2) (Pressure: P [hPa], Altitude: h [m] Refer to 1997 scientific chronology)

When reading digital data such as speed data and time data, the calculated gradient data is read together with position data in the same manner as in the above-described embodiment, and digital data such as speed data and time data at the traveling point is read. Along with the graph displaying the data, the gradient data corresponding to the digital data in time series is simultaneously displayed in a graph. FIG. 4 is a diagram showing digital data together with a graph showing the gradient data created in this way.

FIG. 4 shows an example in which the gradient data obtained as described above and the road gradient of the traveled area are displayed together on the CRT of the computer 15. FIG.
In the graph, the horizontal axis represents time, and the vertical axis represents speed. Further, a state is shown in which the traveling distance of the vehicle and the gradient of the traveling point are displayed in accordance with the time axis of the horizontal axis. As a result, the state of the road gradient in the area where the vehicle has traveled can be grasped at a glance, and the driving tendency of the driver can be grasped more accurately.

The value of the gradient to be displayed may be set so as to be positive when the vehicle is traveling upward and to be a negative value when traveling downward when viewed from the traveling direction of the vehicle. It may be displayed. In the case where the value of the gradient is displayed as an absolute value, a method of changing the color of the displayed graph so as to distinguish between the upward and the downward can be considered.

Further, according to the value of the gradient, a process such as changing the color may be performed for a gradient having a specific value or more. In this case, it is possible to grasp at a glance that the vehicle is traveling in an area where the gradient of the road is extremely large, and there is an effect of calling attention to the need to carefully analyze the traveling data in the area.

This embodiment is effective when there are many undulations in the area where the operation is performed.

【The invention's effect】

According to the present invention, by displaying information such as the undulations of the operating area in accordance with the speed data of the vehicle, the speed and road conditions (such as slope and curve) are displayed in accordance with the speed data of the vehicle. , Etc.) can be clearly understood, and it is possible to perform operation management more in accordance with the actual situation.

[Brief description of the drawings]

FIG. 1 is an overall configuration explanatory view showing an operation recording device used in an embodiment of the present invention.

FIG. 2 is a diagram for explaining an operation principle in the embodiment.

FIG. 3 is a diagram showing a calculation formula for obtaining a gradient for each operation point in the first embodiment.

FIG. 4 is a diagram showing a 4-minute recording chart created by a personal computer in the present invention.

FIG. 5 is a diagram showing a procedure for creating a data table for obtaining position data, altitude data, and gradient data in the second embodiment.

FIG. 6 is an explanatory diagram of an entire configuration in which an atmospheric pressure sensor is added to the overall configuration of the first embodiment in the present invention.

FIG. 7 is a record chart showing a general operation record according to the present invention.

FIG. 8 is a diagram illustrating a state in which a vehicle is traveling on a slope provided with a speed limit at an excessive speed.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... In-vehicle apparatus, 2 ... Wireless apparatus, 4 ... GPS receiver, 6 ...
Communication satellite, 7: control unit, 10: card processing device, 11 ...
Card, 12 CPU, 13 operating point table, 14
... Reader, 15 ... Computer, 17 ... Wireless device, 2
0: Digital operation recorder, S: Sales office, T: Transportation truck, A, B, C: Operation point

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) // G01D 9/00 G01D 9/00 K F term (reference) 2F070 AA01 CC04 CC11 DD12 EE08 GG07 HH06 3E038 AA01 AA10 BA02 BA09 BA12 BA20 BB03 BB04 CA03 CA06 CA07 CB05 CB07 DA02 DA03 DB08 EA02 FA03 GA02 HA05 5B049 BB31 CC21 CC31 DD01 DD04 EE01 EE28 FF02 FF08 GG03 GG07 5H180 AA07 BB04 BB12 FF05 FF27 FF33 5J062 BB01 CC

Claims (5)

[Claims] 1. A recording medium, such as a removable memory card, mounted on a vehicle for collecting and recording speed data, time data, and travel distance data of the vehicle as digital data, and stored in the recording medium. In a digital operation recorder equipped with a reading device for reading digital data and a receiver for receiving position data on the traveling point of the vehicle from a communication satellite, calculating gradient data of the traveling point of the vehicle from the position data. And an operation recording system for displaying the stored digital data simultaneously with the gradient data corresponding to the traveling point. 2. A recording medium, such as a removable memory card, mounted on a vehicle for collecting and recording speed data, time data, and traveling distance data of the vehicle as digital data, and stored in the recording medium. A digital traffic recorder comprising: a reading device for reading digital data; and a receiver for receiving position data and altitude data relating to a traveling point of the vehicle from a communication satellite. An operation recording system which calculates slope data of a point and displays the stored digital data simultaneously with the slope data corresponding to the traveling point. 3. A recording medium, such as a removable memory card, mounted on a vehicle for collecting and recording speed data, time data, and traveling distance data of the vehicle as digital data, and stored in the recording medium. A digital operation recorder having a reader for reading digital data and a receiver for receiving position data and altitude data relating to the traveling point of the vehicle from a communication satellite, wherein the recorder is connected to the reader or the reader. The control unit stores map data including position data and altitude data of a traveling area, and reads altitude data from the map data based on the position data read from a recording medium such as a memory card, and reads a travel point. The slope data is calculated, and the stored digital data corresponds to the travel point. Operation recording system and displaying serial gradient data at the same time. 4. A recording medium, such as a removable memory card, mounted on a vehicle for collecting and recording speed data, time data, and travel distance data of the vehicle as digital data, and stored in the recording medium. In a digital operation recorder equipped with a reading device for reading digital data and a receiver for receiving position data on the traveling point of the vehicle from a communication satellite, the reading device or a control unit connected to the reading device may be used. Connect an atmospheric pressure sensor, store altitude data obtained from the atmospheric pressure sensor on a recording medium such as a memory card, and read out the position data and altitude data when reading out the digital data to calculate gradient data of a traveling point. The stored digital data is simultaneously stored with the gradient data corresponding to the traveling point. Operation recording system and displaying. 5. The operation record according to claim 1, wherein the displayed digital data and the gradient data corresponding to the traveling point are displayed in a manner changed according to the value of the gradient data. system.