JPH08161685A - Vehicle driving state investigating and measuring device - Google Patents

Abstract

PURPOSE: To investigate the vehicle driving state through the use of usual vehicle driving states without specification of a vehicle to be measured and need for many man-hours by measuring the drive state of vehicles based on drive data being the correspondence between data from a GPS satellite and time data in the case of reception of a radio wave from the GPS satellite. CONSTITUTION: Since position data changes time by time resulting from drive of a vehicle, the change is stored in a drive data storage section 7 as drive data in cross reference with time data. The drive data are read from the drive data storage section 7 in an on-vehicle device (a) and when the position data of the read data and position data at a crossing A set in advance are coincident, the drive state of the vehicle is started. In the analysis processing, a travelling time of the vehicle from the crossing A to a crossing B, number of stop times, a stop time, an average speed, an acceleration and a deceleration or the like are obtained. Then various data as to the operating state of the vehicle obtained are printed out by a printer 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle traveling survey for obtaining basic data for setting the lighting time of a traffic signal, or for grasping the traffic situation of a vehicle to obtain materials such as a city plan or a traffic plan. Vehicle survey and measurement device for vehicle.

[0002]

2. Description of the Related Art Conventionally, a vehicle running survey and measuring device for collecting basic data for setting a lighting time of a traffic signal, etc., uses a vehicle speed and a running distance based on a pulse signal of a speed generator rotated by rotation of wheels. It is configured to measure the travel state of the vehicle between predetermined reference points, for example, between two intersections, the number of stops and the time, or the running state of the vehicle such as the traveling time at a predetermined speed or more. There is.

[0003]

However, since the above-described conventional vehicle travel survey and measurement apparatus uses the rotation of the wheels, it is necessary to specify the vehicle type and travel, and the distance adjustment is performed prior to the travel survey. There was a drawback that required prior adjustment such as.

In addition, there is a drawback in that, when the vehicle is traveling, a manpower is required to input the reference point passage when the vehicle passes a predetermined reference point (for example, an intersection).

Therefore, the present invention has been made to solve the above-mentioned drawbacks, and its purpose is to conduct a traveling survey by normal vehicle driving without specifying a measurement vehicle and without requiring manpower. An object of the present invention is to provide a vehicle traveling survey measuring device.

[0006]

In order to achieve the above object, a vehicle traveling survey measuring device according to the present invention is a vehicle traveling survey measuring device comprising an on-vehicle device and an analyzer. Receiving means for receiving radio waves from GPS satellites,
Calculating means for calculating position data from the radio wave received by the receiving means, and storage means for storing traveling data in which the position data obtained by the calculating means and the time data at the time of reception by the receiving means are associated with each other. The analyzer includes a vehicle such as travel time, stop count, stop time, average speed, acceleration, deceleration, etc. at two predetermined reference points based on the travel data stored in the storage means. It is characterized in that it has a measuring means for measuring the operation state of.

[0007]

In the above structure, the measuring means, based on the traveling data in which the data of the GPS satellite and the time data at the time of reception of the radio wave from the GPS satellite are associated with each other, the travel time at the predetermined two reference points, Measure the operating status of the vehicle, such as the number of stops, stop time, average speed, acceleration, deceleration, etc.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing a measurement state of the device of one embodiment, and shows an example in which the operation state of a vehicle C between two intersections A and B on a road R is measured.

In FIG. 1, reference numeral 1 denotes an antenna provided on the roof of a vehicle C, which is a GPS (Global Position
ning System) is configured to receive radio waves from satellites. The radio wave received by the antenna 1 is configured to be input to the vehicle-mounted device a mounted on the vehicle C.

As shown in FIG. 2, the vehicle-mounted device a is similar to that used in a known navigation system.
GPS receiving circuit 2 for amplifying the signal from the antenna 1
And a GPS receiving circuit 2 formed mainly of the CPU.
The map stored in the map data storage unit 4 and the processing unit 3 that calculates the current position of the vehicle C based on the signal from the vehicle C are displayed, and the vehicle C is displayed on the displayed map. The display unit 5 includes a display screen for displaying the position of the, and a numeric keypad for inputting a signal such as the start of processing of the processing unit 3 and the operation unit 6.

Further, the vehicle-mounted device a is provided with a traveling data storage section 7 composed of a removable floppy disk, in addition to the configuration similar to that of the above-mentioned known navigation system. The traveling data storage unit 7 is configured to store the position data of the vehicle C and the reception time when the signal (GPS radio wave) that is the basis of the position data is received as a pair. The reception time is configured to be obtained from a clock means provided in the processing unit 3, and the traveling data including position data and time data is set to be obtained every predetermined time, for example, every second. Has been done.

In FIG. 2, b is an analyzer, which is composed of a well-known personal computer and is provided in a data analysis room such as a laboratory.

This analyzer b has a display screen 20 and a vehicle C.
It is composed of a main body 21 for carrying out arithmetic processing capable of inserting the traveling data storage unit (floppy disk) 7 mounted on the computer, an input unit 22 consisting of a numeric keypad, and a printer 23 for printing out the display contents of the display screen 20. There is.

Next, the flowchart of FIG. 3 and FIG.
The measurement operation of the apparatus of this embodiment will be described using. First, the in-vehicle device a side of FIG.

The driver on board the vehicle C is
Switch (operation unit 6) is turned on to activate the vehicle-mounted device a (step 100. Hereafter, step is referred to as S), and the vehicle C is measured on the road R (from the intersection A to the intersection B in the example of FIG. 1). (Section 102) is made to travel (Yes at 102).

Since the position data of the vehicle C changes every moment as the vehicle C travels, the change is stored as the traveling data in the traveling data storage section 7 in association with the time data (S104, S106). That is, the driver of the vehicle C may drive in a completely natural state in accordance with the flow of another vehicle from the intersection A to the intersection B on the road R, and requires the conventional key operation for measurement and the like. There is a feature that does not.

After the vehicle C has passed through the intersection C, when the vehicle C returns to its original location, the vehicle-mounted device a is stopped and the traveling data storage unit (floppy disk) 7 is taken out to complete a series of traveling data collection on the road R. (S106 affirmative, S1
08, S110).

FIG. 3B is a flow chart showing the analysis operation of the analyzer b. First, the traveling data storage unit (floppy disk) 7 taken out from the vehicle-mounted device a is the main body 21.
(S200). Then, in the memory (not shown) of the main body 21, the intersection A and the intersection B are input from the input unit 22.
The position data of is input (S202).

Next, the running state of the vehicle C is read when the running data is read from the running data storage unit 7 from the beginning and the position data of the read data coincides with the preset position data of the intersection A. Is started (S204, S206 affirmative, S208).

The analysis processing is performed when the travel time required for the vehicle C from the intersection A to the intersection B, that is, when the position data read from the traveling data storage unit 7 matches the preset position data of the intersection B. From the time obtained by subtracting the time corresponding to the read position data when the read position data matches the position data of the preset intersection A from the time corresponding to the read position data Travel time is required.

Further, the number of times the vehicle C is considered to be in a stopped state at a speed lower than a predetermined speed and its stop time, the average hourly speed obtained from the distance and travel time obtained from the position data of the intersection A and the intersection B, and the predetermined time The acceleration or deceleration of the vehicle C is obtained from the change in speed over time (S210,
S212). Then, the obtained various data of the operation state of the vehicle C is printed out by the printer 23.

When the analysis of the above-mentioned predetermined traveling state is completed (S214), the traveling data storage section (floppy disk) 7 is taken out from the main body 21 (S216).

As described above, the apparatus of this embodiment collects the traveling data of the vehicle C by using GPS radio waves and analyzes the traveling data, so that the traveling state of the vehicle C can be analyzed very easily. Therefore, it can be used for setting the lighting time of a traffic signal provided at an intersection or the like, and can be used as a material for traffic planning.

In addition to the above, the operation state analysis can be appropriately selected according to the use of the material, such as the traveling time at a predetermined speed or more.

[0025]

The vehicle traveling survey and measurement apparatus according to the present invention is
The vehicle-mounted device has a receiving means for receiving radio waves from GPS satellites, a calculating means for calculating position data from the radio waves received by the receiving means, and position data obtained by the calculating means and the receiving means. Storage means for storing travel data corresponding to the time data of 1), the analyzer based on the travel data stored in the storage means, travel time at a predetermined two reference points, stop. Since it has a measuring means for measuring the running state of the vehicle such as the number of times, stop time, average speed, acceleration, deceleration, etc., it is possible to collect running data very easily and analyze the running state of the vehicle from the running data, It can be used for setting the lighting time of the traffic lights provided in the etc., and for materials such as traffic plans.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a measurement state of an apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of a device according to an embodiment.

FIG. 3 is a flowchart showing a measurement operation.

[Explanation of symbols]

 1 antenna 2 GPS receiving circuit 3 processing unit 4 map data storage unit 5 display unit 6 operation unit 7 traveling data storage unit 20 display screen 21 main body 22 input unit 23 printer a vehicle-mounted device b analyzer C vehicle

Claims (1)

[Claims] 1. A vehicle traveling survey and measurement device comprising an on-vehicle device and an analyzer, wherein the on-vehicle device receives a radio wave from a GPS satellite, and position data from the radio wave received by the receiving means. And storage means for storing travel data in which the position data obtained by the calculation means and the time data at the time of reception by the receiving means are stored, and the analyzer includes the storage means. A measuring means for measuring the traveling state of the vehicle such as travel time, number of stops, stopping time, average speed, acceleration, deceleration, etc. at two predetermined reference points based on the traveling data stored in the means; A vehicle traveling survey and measurement device characterized by the above.