JPH0620089Y2 - Road flatness measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a road surface flatness measuring device for measuring the flatness of a vehicle by moving a truck on a paved road surface, and more particularly to automatic printing of the road surface height.

[Prior Art] FIG. 6 is an external view of a conventional road surface flatness measuring device, for example, 2 is a dolly, 51 is a road surface such as a paved road, and 52 is a dolly that is in contact with the road surface 51 and is sensitive to the unevenness. 2 is a measuring wheel equipped on the vehicle 2, and 53 is a recorder mounted on the carriage 2.

The conventional road surface flatness measuring apparatus is configured as described above, and in the flatness measurement of a paved road surface, the trolley 2 moving on the road surface 51 is provided with the measurement wheel 52 so as to be located at the center of the road surface 51. When the carriage 2 is towed, the recorder 53 is operated and the paper is sent out, and the height of the road surface 51 measured by the measuring wheels 52 is recorded in the recorder 53.

In the above measurement, for example, one measurement line is provided in one lane in which the moving vehicle travels, the carriage 2 moves inward from the edge of the lane along the center line in the vicinity of 80 to 100 cm, and the measurement is continuously performed from the start point to the end point. Done.

FIG. 7 shows an example of conventional measurement data, 55 is measurement data, 56 is a predetermined distance indicating the sampling interval of the measurement data 55, 57 is a reference road surface indicating the reference level of the road surface 51, and 58 is a predetermined distance sampling every 56 times. It is the height indicating the deviation from the reference road surface 57.

Measurement data 55 continuously recorded on the recording paper of the recorder 53
Is measured data 55 for each predetermined distance 56 of 1.5 m, for example.
The deviation value from the reference road surface 57 of the
It is plotted as the height of 1 to obtain the vertical cross-sectional shape of the road surface 51.

When a personal computer or a data processing device with a plotter is used instead of the recorder 53, the height signal of the road surface 51 is stored in a storage medium such as a disk after data processing. At the time of reading the data, the data stored in the storage medium is subjected to data processing for converting the data to the height of the road surface 51 via a personal computer, and the height data for each predetermined distance 56 is printed on the plotter.

[Problems to be Solved by the Invention] In the conventional road surface flatness measuring apparatus as described above, the road surface 51
The recorder 53 mounted on the carriage 2 moving the
Measuring wheel 52 moving along approximately the center line of the lane in 1
The measurement data 55 is continuously recorded in the section from the start point to the end point.

As the measurement data 55, the deviation value from the reference road surface 57 for each predetermined distance 56 is manually written on the recording paper. At this time, it takes time to read the deviation of the measurement data 55 from the reference road surface 57, and the quality of the presentation data deteriorates due to individual errors at the time of reading, entry errors, and handwriting.

A personal computer or the like is used to read the data stored in the recording medium such as the disk, and the height data for each predetermined distance 56 is recorded in the plotter. At this time, an expensive device such as a plotter must be used, and there is a problem in that the recorded data lacks reliability when used as presentation materials.

The present invention has been made to solve such a problem, and reliable road surface height data can be printed quickly and automatically in real time without the intervention of an individual error when reading data or using an expensive plotter. The purpose is to obtain a road surface flatness measuring device that can be used as presentation material.

[Means for Solving the Problems] A road surface flatness measuring device according to the present invention comprises a road surface detecting means for measuring a distance to a road surface in a non-contact manner, a moving distance of a carriage, and a signal for every predetermined distance movement. The moving distance measuring means for outputting, and the measurement data from the road surface detecting means for each signal output from the moving distance measuring means are converted into height data indicating a deviation from the reference road surface and the numerical value of the height data is outputted. A data processing section, a set value inputting means for setting the instruction of the measuring means and the level of the reference road surface, and a printing device for printing the height data for each predetermined distance movement from the data processing section by numbers are provided.

[Operation] In the present invention, since the height data for each predetermined distance movement output from the data processing unit in response to the instruction of the movement distance measuring means is printed on the printing device, the height data is printed along the lane of the paved road surface. The dolly moves and spans the section from the start point to the end point,
The road surface height is measured every time the vehicle moves a predetermined distance, and is automatically printed on the printing device in real time through the data processing unit.

Therefore, there is no risk of the occurrence of personal error or writing error due to the data reading at every predetermined distance movement from the continuously recorded measurement data, and the expensive plotter is not used for reading the data from the storage medium.

The material as the longitudinal flatness data in which the road surface height data is printed at every predetermined distance can be quickly and automatically created in real time and can be immediately used as the presented material.

[Embodiment] An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an external view showing an embodiment of the present invention, FIG. 2 is a block diagram of FIG. 1, and reference numerals 2, 51, 56 and 57 are the same as those of the conventional device described above.
Is a road surface detecting means, 2A is a towing unit of the carriage 2, 3 is a moving distance measuring means for sending a distance signal of the carriage 2, 4 is a data processing unit, 5 is a printing device, 6 is a set value input means, 10
Is a road surface flatness measuring device, and 23 is a RAM in which measurement data 55 is stored.

In the road surface flatness measuring device configured as described above, the non-contact type road surface detecting means 1 and the road surface detecting means 1
The sensor unit is mounted downward at the center position, and the carriage 2 is provided with the towing unit 2A at the tip.

A so-called laser type non-contact displacement type is used as the road surface detecting means 1. This is to detect the displacement of the object to be measured by irradiating the object to be measured with laser light and forming the image of the position of the bright spot on the image sensor through the lens of the light receiving system. The trolley | bogie 2 consists of the four-wheel trolley | bogie formed in the comparatively slender state in the advancing direction. A traction unit 2A is provided at the tip end of the trolley 2 in the traction direction and can be towed by human power or an automobile. In the case of FIG. 1, the case of pulling by human power is shown.

An incremental encoder is equipped as a moving distance detecting means 3 on the wheels of the legs of the carriage 2. Then, the output of the moving distance detecting means 3 and the road surface detecting means 1
In order to obtain the deviation of the reference level of the road surface 51 from the reference road surface 57 based on the measurement data from the data processing unit 4, which converts the measurement data into height data by a predetermined calculation, the converted height data. The trolley 2 is equipped with a printer used for a printing device 5 that prints and displays on the recording paper.

The pulse signal output from the encoder for the moving distance measuring unit 3 is input to a counter 21 described later in the data processing unit 4 provided on the carriage 2.

FIG. 3 shows a block diagram of the data processing unit. The data processing unit 4 inputs the counter 21 that counts the pulse signals output from the encoder and integrates the traction distance, and the output of this counter 21. Input port 22 for
A RAM (random access memory) 23 for storing measurement data input via the input port 22 and a ROM (read only memory) 2 for storing a program.
4 and CP that executes the program and controls the whole
It is provided with U25 and an output port 27 for outputting the result. The output data from the output port 27 is printed out by the printer described above.

Further, the data processing unit 4 is provided with a set value input means 6 for inputting measurement start and end instructions and the like as needed and arbitrarily. The set value input means 6 is equipped on the tow portion 2A of the trolley 2 described above.

Next, the operation of the above embodiment will be described. A measurement start instruction and a necessary set value are input to the set value input means 6, and this is input via the input port 22 of the data processing unit 4 to start the measurement.

FIG. 4 is a flowchart showing data storage for each predetermined distance. The CPU 25 first reads the output value of the counter 21 input via the input port 22 (step S1).
01). Next, the CPU 25 determines whether or not it has moved by a preset fixed distance based on this output value (S1).
02). If it has not moved, step S1
Returning to 01, when it is determined that the vehicle has moved a certain distance, the measurement data of the road surface detecting means 1 is read through the input port 22 and stored in the RAM 23 (S103). Then CPU2
In step 5, the input port 22 is checked (S104), and it is determined whether or not a measurement end instruction has been input (S105). Then, if the instruction to end the measurement is not input, the process returns to step S101, and the CPU 25 repeats the above operation until the instruction to end the measurement is input.

As a result, when the measurement is completed, the RAM 2 is stored in the RAM 23 when the carriage 2 moves on the road surface from the start to the end of the measurement.
The measurement data of the road surface 51 for each constant distance viewed from the above is stored.

FIG. 5 is a flow chart showing data conversion, which is the CPU 25.
Then, using the measurement data stored in the RAM 23, it is converted into height data indicating a deviation from the reference road surface 57 (step S111).

Next, the CPU 25 checks, for example, whether or not the predetermined distance 56 has moved by 1.5 m, and determines whether or not to print the numerical value of the height data (S112). Then, when moving by 1.5 m, the numerical value of the height data is sent to the printer 5 via the output port 27 (S11).
3). After that, the height data is similarly sent to the printer 5 (S114). As a result, the height data is printed on the recording paper by the printer 5 and displayed as numerical data every 1.5 m.

As described above, the height data of the road surface 51 showing the vertical flatness is printed quickly and automatically in real time, and can be immediately used as a presentation material without human intervention, which contributes to labor saving.

The vertical flatness data obtained by this device can be analyzed and used for preparing road surface repair plans and work management.

[Effect of the Invention] As described above, the present invention has a simple structure in which the road surface detecting means, the moving distance measuring means, and the printing device for printing the output of the data processing unit are provided, and based on the command for each predetermined distance movement of the trolley. The measurement data from the road surface detecting means is converted into height data through a data processing unit, and the numerical value is printed on the printing device.

Therefore, the numerical value of the height data of the road surface indicating the longitudinal flatness is printed quickly and automatically in real time with the movement of the trolley by a predetermined distance, and can be immediately used as a presentation material, which contributes to labor saving.

Further, there is an effect that the vertical flatness data can be analyzed and used for preparing a road surface repair plan and for work management.

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of the present invention, FIG. 2 is a block diagram of FIG. 1, FIG. 3 is a block diagram of a data processing unit, and FIG. 4 is a flow chart showing data storage at a predetermined distance. , FIG. 5 is a flow chart showing data exchange, FIG.
FIG. 7 is an external view of a conventional road surface flatness measuring device, and FIG. 7 is an example of conventional measurement data. In the figure, 1 is a road surface detecting means, 2 is a trolley, 2A is a traction section, 3 is a moving distance measuring means, 4 is a data processing section, 5 is a printer, and 10 is a road surface flatness measuring apparatus. In the drawings, the same reference numerals indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hirohisa Takemoto 2-16-46 Minami-Kamata, Ota-ku, Tokyo Tokyo Keiki Co., Ltd. (56) Reference JP-A-63-142211 (JP, A) JP Sho 63-154912 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A road surface flatness measuring device for measuring the flatness of a road surface, which is mounted on a trolley equipped with a towing portion at the tip and moves on the road surface, and road surface detecting means for measuring the distance to the road surface in a non-contact manner.
Moving distance measuring means for measuring the moving distance of the carriage and outputting a signal for each predetermined distance movement, and measurement data from the road surface detecting means for each signal output from the moving distance measuring means showing a deviation from the reference road surface. A data processing unit for converting the height data and outputting the numerical value of the height data, a set value input unit for setting an instruction of the measuring unit and a level of the reference road surface,
A road surface flatness measuring device, comprising: a printing device for printing height data for each movement of a predetermined distance from a data processing unit by a numeral.