JPH039093Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an in-vehicle travel data acquisition device, and more specifically, the present invention relates to an in-vehicle driving data acquisition device, and more specifically, it collects latitude/longitude information and speed information related to the current position of the vehicle as the vehicle travels. The present invention relates to an in-vehicle travel data recording device that records azimuth information and time information and, if necessary, displays the various types of information on a road map, for example, in a superimposed manner on a CRT.

[Prior Art] When a car is used for business purposes, tachographs have been widely used in order to effectively manage the driver and the vehicle.

As is well known, a tachograph records traveling speed radially on a paper disc using a pen.

[Problem that the invention aims to solve] However, it is difficult to collect detailed driving data such as driving position and direction from this type of graph, and in particular, it is difficult to obtain detailed driving management information for the driver. The disadvantage was that it was extremely difficult.

The present invention was devised to overcome the above-mentioned disadvantages, and uses a system such as GPS (Global Positioning System) that can measure the current position of a car using radio waves from multiple artificial satellites.
Using a navigation device, the latitude/longitude information, speed information, direction information, and time information obtained by this GPS navigation device are recorded on a recording medium such as a flexible disk, cassette tape, or IC memory, and stored in this recording medium. To provide an in-vehicle driving data acquisition device that enables past driving conditions to be confirmed by displaying the information on a display as necessary, and that allows accurate driving management information to be obtained.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes receiving devices 12 and 20 that receive radio waves from artificial satellites, and a method for calculating signals from the radio waves obtained through the receiving devices. Arithmetic device 22 that processes and obtains driving data such as the current position, driving speed, driving direction, and time of the vehicle.
, a recording device 24 for recording the running data on a recording medium, and a housing 26 for housing the calculation means and the recording device.
At least the arithmetic device and the recording device are attached to the main body of the automobile via a vibration isolating member 32, and the housing 26 is locked when the recording medium constituting the recording device 24 is attached or detached. It is characterized by having a locking mechanism 42 for unlocking.

[Operation] Traveling data is calculated from the radio waves obtained by the receiving device and this data is recorded in the recording device, but at this time, since this device is attached to the car body via a vibration isolating member, Accurate data can be obtained, and by unlocking the locking mechanism, the recording medium can be taken out and the running data can be displayed on the display.

[Embodiments] Next, preferred embodiments of the vehicle-mounted driving data acquisition device according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a car, and this car 10 has an antenna 12 for receiving radio waves from an artificial satellite (not shown), and a magnetic compass 14 for obtaining information on the running direction of the car 10. , and a distance meter 18 connected to the wheels 16. Furthermore, the antenna 1
A GPS receiver 20 is connected to the output side of 2, and the output side of this GPS receiver 20 is connected to a driving data arithmetic processing device 22, and the output side of the driving data arithmetic processing device 22 is connected to a recording device 24. has been done. The recording device 24 basically consists of preferably a flexible disk or cassette tape, and a drive circuit for driving it. Note that the output sides of the magnetic compass 14 and the distance meter 18 are connected to the traveling data arithmetic processing device 22.

Here, the GPS receiver 20, the driving data arithmetic processing device 22, and the recording device 24 will be explained in detail below.

GPS receiver 20 and driving data arithmetic processing device 2
2. It is preferable that the recording device 24 is configured integrally and placed inside the vehicle, but in some cases, as shown in FIG.
0, the other parts are installed independently, and the driving data arithmetic processing device 22 and the recording device 24 are installed in the vehicle 1.
It is housed inside a casing 26 mounted near the dash board 25 of No. 0. However, the driving data arithmetic processing device 22 is not shown because it is housed behind the recording device 24 and cannot be seen. The housing 26 may be made of metal or synthetic resin, and a flat plate-shaped protrusion 28 is provided in a part of the housing 26.
Bolts 30a and 30b are inserted into the holes drilled in holes 8, and the housing 26 is supported on the dart board 25 under the vibration-proofing action of a vibration-proofing member 32 made of synthetic rubber or the like. Similarly, GPS receiver 20
is also supported on the dash board 25 under the action of a vibration isolating member 36 made of synthetic rubber or the like. In this case, the vibration isolating members 32 and 36 may be integrated. The driving data processing device 22 and the recording device 24 disposed inside the housing 26 are supplied with power from a power supply section of the vehicle (not shown) via a power cable 34, and the driving data processing device 22 is further equipped with a GPS receiver. A data cable 38 extending from 20 is connected. A lid 40 is supported on the front surface of the casing 26 so as to be openable and closable, and the lid 40 can be locked and unlocked by a locking mechanism 42.

The in-vehicle driving data acquisition device according to the present invention is basically constructed as described above, and its operation and effects will be explained next.

First, a general description of the GPS receiver 20 will be given. As is well known, a GPS navigation device receives satellite radio waves from at least three artificial satellites, and uses this to determine the current position of a traveling ship, aircraft, or vehicle, and determines the traveling speed and direction.

Therefore, the running data arithmetic processing device 22 introduces the signal obtained in this way to the recording device 24. As a result, the running direction and the running distance at that time are introduced into the recording device 24 via the running data arithmetic processing device 22. Therefore, inside the recording device 24, for example, the running direction, walking distance, walking speed, and time information are stored on a flexible disk (not shown) or on the basis of the time information outputted by the running data arithmetic processing device 22. They are recorded sequentially onto a cassette tape. In addition, GPS
The magnetic compass 14 and distance meter 18 are not indispensable because the navigation device can obtain not only position information but also the traveling speed and direction at the same time. Signals from the magnetic compass 14 and distance meter 18 are also introduced into the travel data processing unit 22 for supplementation when the vehicle is blocked.

The information recorded in this way is stored in the locking mechanism 42.
By once unlocking the door and opening the lid 40, it can be taken out. That is, the cassette tape loaded in the housing 26 is, for example, a CRT.
etc. is loaded into a playback device attached to a display device (not shown), and driven by the playback device,
On the display, vehicle travel data is displayed as a travel trajectory based on time information. In this case, it is preferable to configure the display to display a road map related to the travel in a superimposed manner. That is, for example, a film on which a road map is printed may be mounted on the screen of a CRT, and a travel trajectory extracted from the recorded travel data may be displayed on the map represented by the film. This makes it possible to accurately reproduce the driving data of the vehicle at the desired time and place by simply changing the display device.

[Effects of the invention] According to the invention, although it has an extremely simple configuration as described above, unlike conventional tachographs, it is possible to measure travel distance, travel speed, current position, and travel direction all at once by taking into account the passage of time. Since it is possible to eliminate the influence of vibrations and the like through the vibrating member and obtain accurate information, it is particularly suitable for obtaining driver management information. Furthermore, the structure is simple, and driving data can be displayed on the display as necessary.
Furthermore, since it can be manufactured at low cost, it can also provide economic advantages.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of an on-vehicle driving data acquisition device according to the present invention, and FIG. 2 is an external view of the device shown in FIG. 1 installed on a dash board of an automobile. 10...Car, 12...Antenna, 14...
Magnetic compass, 16...Wheel, 18...Distance meter, 20...GPS receiver, 22...Driving data processing unit, 24...Recording device, 25...Dashboard, 26...Housing, 28... …protrusion,
30a, 30b... Bolt, 32... Vibration isolating member,
34...Power cable, 36...Vibration isolation member, 38
...data cable, 40...lid, 42...locking mechanism.

Claims (1)

[Scope of claim for utility model registration] Receiving device 12 that receives radio waves from an artificial satellite;
20, and an arithmetic device 22 that processes signals from radio waves obtained through the receiving device to obtain driving data such as the current position, driving speed, driving direction, and time of the vehicle.
, a recording device 24 for recording the running data on a recording medium, and a housing 26 for housing the calculation means and the recording device.
At least the arithmetic device and the recording device are attached to the main body of the automobile via a vibration isolating member 32, and the housing 26 is locked when the recording medium constituting the recording device 24 is attached or detached. A vehicle-mounted driving data acquisition device characterized by having a locking mechanism 42 for unlocking.