JP3261359B2 - Surveying point display device and program recording medium for surveying point display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical distance meter and a GP.
S (Global Positioning System)
em) It relates to a survey point display device which displays the position of a survey point measured by a survey instrument such as a survey instrument.

[0002]

2. Description of the Related Art Conventionally, in this type of survey point display device, for example, when measuring the distance and angle from a reference point to a survey point using a lightwave range finder, each time a measurement is instructed, the survey point is displayed. The position data is stored, and the position of the survey point is displayed on an image display device attached to or externally connected to the surveying instrument.
In the case of a GPS surveying device, all position data of survey points measured continuously are received and stored, or the position data of the survey points are received and stored at regular time intervals. That is, in order to display the positions of the survey points, all the position data have been stored.

[0003]

However, when the surveying point is a moving body, if the time interval of the survey is long, the moving trajectory of the moving body cannot be accurately reproduced, and further, the traveling direction of the moving body is not accurate. There was a problem that could not be grasped. Although the above problem is solved by shortening the time interval of surveying and increasing the number of surveying points, the result is that unnecessary surveying data is saved, and the storage capacity for saving surveying data becomes enormous. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a survey point display device which enables both accurate display and reproduction of survey points and efficient storage of survey data. It is in.

[0005]

[MEANS FOR SOLVING THE PROBLEMS] To achieve this object
The first characteristic configuration of the survey point display device according to the present invention is as follows.
As described in claim 1 of the field of the scope of claim, the survey point
Receiving means for receiving position data continuously or intermittently
And sequentially processes the position data received by the receiving means.
To display the position of the survey point on a predetermined display screen
Indicating means, and the table specified by the input operation of the operator.
The survey points corresponding to the positions of the survey points displayed on the display screen.
Position data storage means for storing position data in a storage device;
And the position data most recently received by the receiving means.
And at least two received within a certain period before
At least three survey points corresponding to the position data of
In each of the positions
Displayed simultaneously with a dot mark of the specified size.
The position of the at least three survey points,
Is displayed so that the context of each survey point can be recognized.
On the point.

[0006] the second feature structure, as set forth in claim 2 column claims, in addition to the first feature structure
Te, receiving means for continuously or intermittently receive the position data of the survey points, display means for sequentially processing the position data received by the receiving means to display the position of the surveying point on a predetermined display screen And position data storage means for storing the position data corresponding to the position of the survey point displayed on the display screen designated by the input operation of the operator in a storage device, after the input operation The position data received by the receiving means is sequentially stored in a storage device at a fixed time interval regardless of the presence or absence of an input operation, and the position data received by the receiving means after a certain period of time has not been stored is stored. The point is to erase. Here, the surveying point is a surveying target, and may be a moving body or a stationary body. Therefore, the position data of the survey point may be position data indicating a time-varying position of the same moving object, or may be position data indicating each position of a plurality of stationary points.

The third characteristic configuration corresponds to the position data stored in the storage device in addition to the first or second characteristic configuration, as described in claim 3 of the claims. The position of the survey point is displayed on the display screen.

[0008] The fourth characteristic configuration is, as described in claim 4 of the claims section, in addition to the first , second or third characteristic configuration, wherein the receiving means is provided. The position of a plurality of survey points corresponding to the latest received position data and at least one position data received within a certain period before that is displayed simultaneously on the display screen.

According to a fifth feature configuration, as described in claim 5 of the claims, in addition to the fourth feature configuration, the positions of the plurality of survey points are set before and after each survey time. The point is that the relationship is displayed in an identifiable manner .

[0010] The sixth characteristic configuration is the same as the first, second, third, fourth or fifth characteristic configuration, as described in claim 6 of the claims. It is characterized in that it comprises an instructing means for instructing an arbitrary position on the screen, and a circular ruler displaying means for displaying a circular ruler having a predetermined radius around the position indicated by the instructing means on the display screen. .

In order to achieve this object, the characteristic structure of the program recording medium for displaying survey points according to the present invention is, as described in claim 7 in the claims, the position of the survey points measured by the survey instrument. The survey point display device according to any one of claims 1 to 6, wherein the data is executed on a computer configured to be capable of receiving data continuously or intermittently via a built-in or external communication terminal. Another feature is that a survey point display program to be realized by the computer is stored.

The operation and effect will be described below. The book above
According to the first feature configuration of the survey point display device according to the invention,
The current position (latest position) and traveling direction of the moving object
The size of the mark can be recognized on the display screen at a glance.

[0013] According to a second characterizing feature of the surveying point display device according to the present invention, at short time intervals if the mobile were surveyed by shortening the distance survey point adjacent if stationary body surveying Since the receiving means receives the position data of the points and the display means can once display the positions of all the survey points on the display screen based on the position data, it is necessary to confirm the result of the survey with high resolution on the display screen. As a result, the survey points to be saved can be designated and saved by the position data saving means while checking them on the display screen. Therefore, the storage capacity of the storage device does not need to be unnecessarily large and economical. Here, the surveying points to be stored mean those surveying points that can interpolate the positions of the surveying points that have been deleted without being stored with a predetermined accuracy. Therefore, unlike the case where the surveyed survey points are simply designated at fixed time intervals, for example, even when the moving body suddenly changes the course, the path change point is determined and saved by the operator as the surveying point to be saved. You can do it. As a result, it is possible to reproduce the survey result with high accuracy using only the position data of the survey points stored in this way. Further, according to the second characteristic configuration, for example, when the moving body is moving while slowly changing the course, the operator does not specify the surveying points to be stored at regular time intervals. At the saved survey point,
Since the movement trajectory during that time can be interpolated, the operator simply needs to specify only the sudden course change point where the interpolation error becomes large when specifying the saved survey points at fixed time intervals, which greatly reduces the operator's labor It is reduced.

According to the third characteristic configuration, even when the display means displays only the survey points whose survey points have been received most recently on the display screen, the positions of the survey points measured up to that point are displayed. You can understand. Therefore, the amount of position data to be temporarily stored during the period when the display means is displaying on the display screen can be reduced, and the configuration of the temporary storage means of the display means can be simplified.

According to the fourth characteristic configuration, the positional relationship between the most recently displayed survey point and the nearest survey point can be easily determined visually, so that it is determined whether the survey point is a survey point to be stored. You can easily judge. Further, since survey points other than the survey point displayed most recently can be designated as survey points to be saved, it is not necessary to immediately judge whether or not the survey point is a survey point to be saved. Usability improves.

According to the fifth characteristic configuration, when the surveying point is a moving body, the traveling direction of the moving body can be easily grasped. In other words, even if the positions of a plurality of survey points are displayed on the display screen, if the reception time interval of the position data is long,
It is not necessary for the operator to memorize which survey point is the latest displayed one by one. This is particularly effective when the display screen is changed in screen size or changed by scrolling.

According to the sixth characteristic configuration, the distance between the surveying point and another surveying point, and when the surveying point is a moving object, the distance to an obstacle or a planned course is immediately determined by a circular ruler. You can do it. In other words, since the distance can be estimated only by moving the center of the circle ruler with the indicating means, the distance between the survey point and the object is specified on the display screen at two points each, and the distance between the points is measured. Since it can be measured faster than the rough estimate using the grid display as a guide, it is suitable for measuring the distance between a moving object moving at high speed and obstacles and planned courses,
The measurement accuracy is higher than the case where the approximate calculation is performed using the grid display on the display screen as a guide.

According to the characteristic configuration of the survey point display program recording medium according to the present invention, the program can be loaded from a recording medium into an executable computer, or by directly accessing the recording medium. Since the first, second, third, fourth, fifth or sixth characteristic configuration of the survey point display device according to the present invention can be realized on the computer, the first, second, third, fourth ,
The same operation and effect as those of the fifth or sixth characteristic configuration can be obtained.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a survey point display device according to the present invention (hereinafter referred to as the present invention device) is assumed to display survey points obtained by measuring the position of a moving body such as a ship. A description will be given based on the drawings. As shown in FIG.
The apparatus of the present invention is connected to at least one surveying device 1 in a communicable manner, and receives a position data D of a survey point measured by the surveying device 1 continuously or intermittently.
And data conversion of the position data D received by the receiving means 2 to calculate a display position of the position of the surveying point on a predetermined display screen, and to display a CRT together with a reference graphic such as a map.
A display unit 4 for displaying on an output unit 3 such as a display device; an input unit 5 such as a keyboard or a mouse; and a position of the survey point displayed on the display screen by an input operation of an operator from the input unit 5 And a position data storage unit 7 for storing the position data D corresponding to the position of the specified survey point in a nonvolatile storage device 6 such as a magnetic disk.
And a configuration including

Specifically, it is configured by applying a general personal computer, and comprises a communication control part of the receiving means 2, the display means 4 and the position data storage means 7.
Implements the device of the present invention by executing a predetermined program on a personal computer. Further, the program may be fixedly stored in a storage device such as a magnetic disk built in a personal computer, or
What is stored in a recording medium such as a CD-ROM or a floppy disk may be transferred to this storage device and used as appropriate. Further, when the operation speed of the recording medium has the same high speed and random access as the main memory of the personal computer, a usage form in which the microprocessor directly accesses the storage medium may be used.

When the surveying instrument 1 is a GPS surveying instrument or the like and is mounted on a ship and the apparatus of the present invention is on land, or when the surveying instrument 1 is a transit with a built-in lightwave range finder or the like and is installed on land. When the apparatus of the present invention is installed in a ship, for example, it is convenient that the apparatus of the present invention and the surveying instrument 1 are wirelessly communicated.
Has a wireless communication terminal. In addition, the surveying instrument 1
When the apparatus of the present invention is used in a ship or on land by juxtaposition with the apparatus of the present invention, the receiving means 2 communicates the apparatus of the present invention with the surveying instrument 1 through a communication cable in a predetermined communication system such as RS-232C standard. It has a wired communication terminal to be connected.

Next, the operation of the display means 4 and the position data storage means 7 will be described. The display means 4
When the position data D is input from the receiving means 2, the position data D is temporarily stored in a predetermined storage area.
This storage area stores a maximum of N pieces of position data D of the survey points input in the past. Each position data is assigned an identification number indicating the order of input from 1 to N in the order of input. Therefore, when a new position data D is input, the new position data D is given an identification number 1 and is stored in the storage area. The position data D having the number N is deleted.

Subsequently, the data of the position data D having the identification number 1 is converted, and the coordinate value of the display position on the display screen is calculated. The calculation has already been completed for the position data D with the identification number 2 or more, and the calculation result has been temporarily stored in a predetermined storage area. Therefore, when displaying the positions of the N survey points on the display screen, a dot mark of a size designated by the identification number is displayed at the position of the coordinate value. As shown in FIG. 2, the size of the dot mark is set smaller as the identification number is larger. As a result, the current position and the traveling direction of the moving object can be clearly recognized on the screen by the size of the dot mark. In this way, every time new position data D is input, the position of the new survey point is additionally displayed with the largest dot mark, and the position display of the old survey point sequentially becomes smaller and eventually disappears. I do.

When the position of the survey point to be saved is displayed while confirming the position display of the survey point on the display screen, the operator presses the save button displayed on the display screen with the input means 5. Click to specify the position data D of the survey point corresponding to the position display. The position data storage means 7 controls the reading of the designated position data D from the temporary storage area and the writing of the designated position data D to the storage device 6 based on the designation operation. Further, the position data storage means 7 includes:
At the same time as the designation operation, a built-in counter is started, and based on the output of the counter, the latest input position data D is read from the temporary storage area and written to the storage device 6 at fixed time intervals. The counter is reset and starts counting each time a new designated operation is performed. Further, the operator can change, set or deactivate the output time interval of the counter by displaying a menu on the display screen and operating the input means 5. In addition, the display screen,
The save button, the menu display, and the like are created by customizing a graphical user interface attached to an operation system of a commercially available personal computer such as Microsoft Windows 95 (98).

The coordinate values corresponding to the position data D stored in the above capacity are not erased even if the identification number exceeds N with the input of the new position data D, and are stored in the temporary storage area. . When the identification number of the position display is larger than N, the display means 4 displays a dot mark having a different shape from the dot mark on the display screen. Further, as shown in FIG. 2, the display means 4 displays the dot marks having the identification numbers of N or more by connecting them with straight lines. As a result, the moving trajectory of the ship, which is a moving object, can be clearly displayed on the display screen.

Another embodiment will be described below. <1> FIG. 3 shows a block configuration relating to data processing of the device of the present invention. This configuration is a configuration extended from the basic configuration of the device of the present invention shown in FIG. In the extended apparatus of the present invention, a plurality of surveying instruments 1
3 and is connected to the communication control unit 11. The device control unit 13 controls the operation of the surveying device 1 and, when provided on the surveying device 1 side, also controls the transmission of the position data D to the communication control unit 11.
When the device control unit 13 is provided in the device of the present invention, the operation of each surveying device 1 can be centrally controlled from the device of the present invention. For example, in the case where there are a plurality of ships which are moving bodies, each ship is a surveying vessel for surveying the depth of the seabed, and each of the surveying vessels is equipped with a GPS ranging device, etc. It is assumed that the device is a device.

The communication control unit 11 represents a data processing part of the receiving means 2. The display means 4 is
It comprises a main control unit 10, a position data input / data conversion unit 12, a calculation interpolation unit 13, a display management unit 18, and a data reading unit 16. The main control unit 10 controls the flow of data of each unit and the operation of each unit. Performs calculations to display by interpolation with a straight line. The display management unit 18 controls screen display when a plurality of display screens are displayed on the output unit 3 simultaneously or selectively. For example, the change of each screen size or the magnification of the display screen, the scrolling of the screen, etc. are performed automatically or based on the input operation by the operator from the input unit 5. Note that the plurality of display screens may be a position display for each ship, screens of different scales, or one of the screens may display various measurement values.

The data reading section 16 reads out the position data D of the survey point in which the position data D is stored or the coordinate value of the display position from the storage device 6 and displays each display position by the dot mark as described above. At the same time, it is used for the above-described interpolation calculation for the linear interpolation display. In this alternative embodiment, the storage device 6 is a high-speed random-access direct-read type memory. Therefore, it is necessary to back up separately stored survey point position data D in a nonvolatile memory 24 such as a magnetic disk, and the data backup unit 23 reads the stored survey point position data D from the storage device 6 and The data is backed up in the nonvolatile memory 24. Further, the data reading unit 16 is configured to read data such as reference data such as map data to be displayed together with the position display of the survey points loaded in the second direct read type memory 17.

The position data storage means 7 comprises the main control unit 10, a time management unit 14, a data writing unit 15, and the data backup unit 23. The main controller 10 controls the flow of data in each unit and the operation of each unit. The data writing unit 15 performs the position data input / output based on the operation of specifying the position data D under the control of the time management unit 14 or the input operation of the operator from the input unit 5.
The position data D input to the data converter 12 is written to the storage device 6.

The device of the present invention additionally includes the storage device 6
A mail transfer unit 25 for transferring the stored contents of the mail, a print control unit 19 for screen dumping the display screen, and printing the text data of the measurement result, and the printer 2.
0, for example, when the position of the survey point becomes a predetermined position,
It is also a preferred embodiment to have a configuration including a synchronization signal output control unit 21 for instructing a surveying vessel to start surveying and a signal generation unit 22.

<2> In the above embodiment, the plurality of position data D input to the display means 4 are displayed by assigning identification numbers and changing the size of the dot mark. The position need not always be changed, and only the position of the survey point corresponding to the position data D input most recently may be displayed. Further, when displaying the positions of a plurality of survey points, the dot marks of the latest input may be blinked. Further, when it is necessary to identify the input order, the input order may be identified by another method such as using a FIFO memory without using the identification number.

<3> Further, as shown in FIG. 4, it is preferable to display a circle ruler on the display screen. This ruler C
Is an auxiliary function of the display means 4, and displays the center (shown by a cross in FIG. 4) of the circular ruler C on the display screen by an input operation of the input means 5 with a mouse or the like. The center can be moved by dragging the mouse. The diameter of the circle ruler C is set in advance, but the set value can be changed. The circle of the circle ruler C is not limited to a single circle, but may be a double or triple concentric circle having different diameters. For example, as shown in FIG. 4 (a), when it is determined whether the distance between the planned survey line L of the ship and the position P of the latest input survey point, which is the current position, exceeds a predetermined deviation limit. By moving the center of the circular ruler C having this radius as the radius on the planned route L, it can be easily checked by determining whether or not the position P enters the inside of the circular ruler C. Further, as shown in FIG. 4B, when determining whether the ship is abnormally approaching the obstacle X, when checking whether the shortest distance to the obstacle X is equal to or more than a predetermined minimum value, The circle of the circular ruler C whose diameter is the minimum value is moved in contact with the outer periphery of the obstacle X, and the position P
Can be easily checked by determining whether or not is inside the circular ruler C.

<4> Further, it is also preferable that, by input operation of the input means 5 such as a mouse or the like, a moving locus or the like on the display screen is designated, the details thereof are calculated and displayed on the screen. In a preferred embodiment, the display of the plurality of continuous survey points and the display of the circular ruler C and the planned survey line L can be switched between display and non-display by an input operation of an operator for each display screen. is there.

<5> In the above embodiment, the case where the device of the present invention is configured by applying a personal computer has been described. However, the device of the present invention may be configured by dedicated hardware. Further, the survey points may be a moving body other than a ship or a stationary body.

<6> In the above embodiment, the device of the present invention is described as being used by connecting to an existing distance measuring device. However, the device of the present invention is incorporated in the device as a display unit of the distance measuring device. May be used. In this case, the receiving means 2 is simply formed as a receiving circuit that receives the position data D generated inside the distance measuring device as an internal signal.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a surveying point display device according to the present invention.

FIG. 2 is an explanatory diagram schematically showing an example of a display screen.

FIG. 3 is a block diagram illustrating data processing of the surveying point display device according to an embodiment of the present invention.

FIG. 4 is an explanatory view schematically showing an example of a case where a circle ruler is displayed on a display screen.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surveying instrument 2 Receiving means 3 Output means 4 Display means 5 Input means 6 Storage device 7 Position data storage means D Position data

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-37515 (JP, A) JP-A-4-109116 (JP, A) JP-A-5-223584 (JP, A) JP-A-5-223584 232870 (JP, A) JP-A-5-313571 (JP, A) JP-A-6-258088 (JP, A) JP-A-7-27570 (JP, A) JP-A-7-167667 (JP, A) JP-A-8-278749 (JP, A) JP-A-9-42980 (JP, A) JP-A-59-191610 (JP, U) JP-A-2-81564 (JP, U) JP-A-6-86023 (JP, U) JP 7-56510 (JP, B2) JP 8-20267 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01C 15/00 G01C 21 / 00 G06F 3/00 652

Claims (7)

(57) [Claims] 1. A receiving means for continuously or intermittently receiving position data of a survey point, and sequentially processing the position data received by the receiving means to display a position of the survey point on a predetermined display screen. Display means, and position data storage means for storing, in a storage device, the position data corresponding to the position of the survey point displayed on the display screen specified by the input operation of the operator, The position of at least three of the survey points corresponding to the position data received most recently by the receiving means and at least two position data received within a certain period of time earlier than the position data are reduced in order from the one having the latest size. Become specified
A survey point display device which simultaneously displays on a display screen by dot marks of a size and displays the positions of the at least three survey points so that the context of each survey point can be recognized. 2. A previously saved entry force operation after the position data sequentially storage device at fixed time intervals regardless of the presence or absence of input operation received by the receiving unit, a predetermined period has passed and received by the receiving means The survey point display device according to claim 1, wherein the position data that has not been stored is deleted. 3. A surveying point display device according to claim 1, wherein displaying the position of the surveying point corresponding to the position data stored in the storage device on the display screen. 4. The position of a plurality of survey points corresponding to the position data most recently received by the receiving means and at least one position data received within a certain period of time earlier than the position data are simultaneously displayed on the display screen. Claim 1, 2, or 3
The survey point display device according to the above. 5. The survey point display device according to claim 4, wherein the positions of the plurality of survey points are displayed so that the order of the respective survey points can be identified. 6. An instructing means for instructing an arbitrary position on the display screen, and a circle ruler displaying means for displaying a circular ruler having a predetermined radius around the position instructed by the instructing means on the display screen. The surveying point display device according to claim 1, further comprising: 7. A computer configured to be able to continuously or intermittently receive position data of a survey point measured by a surveying instrument via a built-in or external communication terminal, A program recording medium storing a survey point display program for realizing the survey point display device according to 2, 3, 4, 5, or 6 on the computer.