JP2511414B2 - Surveying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Use) The present invention has a distance measuring function and an angle measuring function used for, for example, measuring and setting each point as each point shown on a map on the spot. Regarding surveying equipment.

(Prior art) Conventionally, when performing surveying work to survey and measure each point as each point shown on the map, the distance between each point is calculated from the coordinate value of each point on the map before going to the site. Or the angle as an angle with respect to the reference direction of each point is calculated, and the point data such as the distance between each point of the coordinate value of each point, the angle with respect to the reference direction of each point, etc. is entered on the map, or After compiling in the table, they went to the site and measured each point from the data as these point data.

Further, as a surveying instrument or a surveying instrument used in the field, a surveying instrument or a surveying instrument which is used for distance measurement and angle measurement by switching between a distance measurement mode and an angle measurement mode has recently been used.

(Problems to be Solved by the Invention) By the way, as a surveying instrument used for surveying, in a surveying instrument capable of performing distance measurement and angle measurement by appropriately switching between an angle measurement mode and a distance measurement mode, a long distance measurement is performed. In order to receive the light from the light emitting part through the reflecting mirror arranged at the point, consider the attenuation of the reflected light and make the light emitting amount of the light emitting device larger than that of the light emitting device used in the angle measurement mode. This is because the power consumption in the distance measurement mode is significantly higher than that in the angle measurement mode.

Therefore, if the distance measurement mode is unnecessarily set during the surveying work, the battery function is deteriorated quickly, and the life of the light emitting element for distance measurement is shortened.

(Means for Solving the Problem) The present invention has been made in view of the above problems, and is characterized in that light from a light emitting unit is received via a reflecting mirror arranged at a measuring point. , A distance measuring unit that measures the distance to the measuring point, an angle measuring unit that measures the angle of the telescope in the collimation direction, a memory unit that stores the data of each point, and the memory unit that stores the data. A calculation unit that obtains surveying data required for a predetermined surveying procedure based on the data, and a display unit that displays according to the measurement results of the distance measuring unit and the angle measuring unit and the surveying data obtained by the calculating unit. , When the display unit displays the distance measurement data according to the predetermined surveying procedure, the distance measurement mode is set to allow the distance measurement unit to measure the distance, and when the measurement data other than the distance measurement is displayed. Is a mode for setting measurement modes other than the above In the place, which is composed of a tough.

(Operation) According to the present invention, the calculation unit performs calculation of the survey data in a predetermined order based on the data stored in the memory unit, and the display unit displays a display according to the survey data.
When the display according to the distance measurement data is displayed on the display by the mode setting section, the distance measurement mode is set, and the mode other than the distance measurement mode is set except when the display is displayed according to the distance measurement data. The mode is set.

(Example) Below, the Example of the surveying instrument which concerns on this invention is described, referring drawings.

FIG. 1 is a diagram showing an external appearance of a surveying instrument according to the present invention. In FIG. 1, a data collector used by connecting a main body 1 for performing distance measurement and angle measurement and a main body 1 with a cable 2 is used.
A 100 and a tripod 3 supporting this data collector 100 are shown.

The main body 1 includes a substrate 4 attached to a tripod 3, a frame 5 that is rotatable around a vertical axis with respect to the substrate 4, and a telescope unit 7 that has a telescope 6 that is rotatable around a horizontal axis with respect to the frame 5. It is composed of.

FIG. 2 is a view showing the side of the first indicator 82 of the main body 1, and the first indicator 82 and the first operating portion 83 are arranged above the eyepiece 8.

When the data collector 100 is not connected to the main body 1, the surveyor operates the first operation unit 83 to perform distance measurement or angle measurement to the reflecting mirror by the main body 1 alone as shown in the configuration described later. it can.

FIG. 3 shows a block diagram of a circuit built in the main body 1. This circuit mainly includes the distance measuring unit 20 and the horizontal distance measuring unit 4.
0, an altitude angle measuring unit 60, a first control unit 80, and a first memory 81, and the first display unit 82 and the first operation unit 83 are connected to the first control calculation unit 80.

The distance measuring unit 20 receives the light from the light emitting element 21, which is a light source, by the light receiving element 24 via the reflecting mirror 9 arranged at the measuring point, and obtains the distance to the measuring point.

The light from the light emitting element 21 is selected by the chopper 22, and is emitted through the reflecting prism 23 and the objective lens 6a. The light emitted from the objective lens 6a is reflected by the reflecting mirror 9 and returns toward the main body 1, passes through the objective lens 6a, is reflected by the reflecting prism 23, and is received by the light receiving element 24.

The light path described above constitutes an external distance measuring optical path. On the other hand, the distance measuring section 20 is provided with an internal reference optical path from the light emitting element 21 to the light receiving element 24 via the reflecting mirror 25. Distance measuring unit 20
Has an oscillator 26, which generates a signal of 15 MHz, which is fed by a first switch 27, a divider 28, a combiner 30,
And to the gate circuit 35.

The frequency divider 28 divides the frequency of the 15 MHz signal from the oscillator 26 to 7
Generates 5KHz and 3KHz signals.

The first switching device 27 outputs a signal of either 15 MHz or 75 KHz to the light emitting element 21 via the amplifier 29 according to the signal from the first control calculation unit 80. As a result, the light emitting element 21
The modulated light of MHz or 75KHz will be emitted.

The synthesizer 30 is 14.977MHz, which is about 3KHz lower than the signal of 15MHz.
And a signal of 72 KHz, which is lower than the signal of 75 KHz by about 3 KHz, is output to the second switch 31.

The second switch 31 outputs a signal of 14.977 MHz and a signal of 75 KHz when the first switch 27 outputs the signal of 15 KHz to the light emitting element 21 in response to the signal from the first control calculation unit 80. While outputting, a 72 KHz signal is output to the mixer 32.
The signal from the light receiving element 24 is output to the mixer 32 via the amplifier 33.

The mixer 32 synthesizes the signal from the light receiving element 24 and the signal from the second switch 31 to combine the first switch and the second switch.
A 3 KHz signal is output to the waveform shaper 34 regardless of the signal from the switch.

The waveform shaper 34 converts the 3 KHz signal from the mixer 32 into a rectangular wave and outputs the rectangular wave to the gate circuit 35.

The gate circuit 35 uses the rising edge (or falling edge) of the 3 KHz signal from the frequency divider 28 as a start signal, and the rising edge (or falling edge) of 3 KHz from the waveform shaper 28 as a stop signal, within that period. And outputs a 15 MHz signal from the oscillator 26 existing in the first counter 36 to the first counter 36.

The first counter 36 counts the signals from the gate circuit 35. Here, two types of count values D ₁ and D ₂ relating to the 15 MHz signal and the 75 KHz signal in the external distance measuring optical path and the internal reference optical path are used. The count value is reset by a signal from the first control calculation unit 80 so as to obtain two kinds of count values d ₁ and d ₂ related to the 15 MHz signal and the 75 KHz signal.

The first control calculation unit 80 determines the upper digit of the distance from the difference between the count value D ₁ of the first counter and the count value d ₁ to the measurement point, and the count value.
The lower digit of the distance from the difference between D ₂ and the count value d ₂ to the measuring point is calculated by the average of 64 times in the coarse distance measurement mode, and by the average of 256 times in the fine distance measurement mode. It is displayed on the container 82. In addition, the first control calculation unit 80 includes the first operation unit 83.
Alternatively, a rough distance measurement mode or a fine distance measurement mode, a horizontal angle measurement mode, and an altitude angle measurement mode are selected by a signal from the second control calculation unit 101 of the data collector 100.

In the distance measuring unit 20, when the distance measuring mode is selected by the first control calculation unit 80, the operation of each circuit unit including the light emission of the light emitting element 21 is performed, and the distance measuring mode is not selected. (When the horizontal angle measurement mode is selected)
The light emitting element does not emit light, and contributes to power saving.

The horizontal angle measuring unit 40 measures the rotation angle of the support unit 5 with respect to the substrate 4 by an incremental encoder.

The rotary grid plate 41 is composed of a disk-shaped glass plate circumferentially provided with a rotary grid 41a having a transparent portion and an opaque portion at a predetermined angle (pitch), and the rotary grid plate 41 is a suspension portion. 5 is attached and rotates together with the frame 5.

On the other hand, on the substrate 4, a light source 42 is arranged at a substantially focal position of the lens 43, so that parallel light illuminates the rotating grating plate 4. Further, a fixed grating plate 44 and a pair of light receiving elements 45a, 45b are arranged on the opposite side of the rotating grating plate 41, sandwiching it.

On the fixed grating plate 44, a fixed grating 44a and a fixed grating 44b whose phase is mutually shifted by 1/4 pitch at the same pitch as the rotating grating 41a are arranged, and light passing through each fixed grating 44a, 44b is arranged. Light receiving elements 45a and 45b are arranged so as to receive light.

With this configuration, the light receiving elements 45a and 45b
Therefore, each time the fixed grating plate 41 moves by one pitch, a signal having a phase difference of 1/4 pitch is output for one cycle.

The output of the light receiving element 45a is converted into a rectangular wave by the first Schmitt trigger circuit 46, and then the first pulse generation circuit 48 and the first
It is input to the direction discrimination circuit 49. The output of the light receiving element 45b is
After being converted into a rectangular wave by the second Schmitt trigger circuit 47, it is input to the first pulse generation circuit 48 and the first direction discrimination circuit 49.

The first pulse generation circuit 48 is a first Schmitt trigger circuit.
46, a pulse is generated at each of the rising and falling timings of the output signal of the second Schmitt trigger circuit 47 and output to the second counter.

The first direction discrimination circuit 49 includes the first Schmitt trigger circuit 4
6. Based on the output of the second Schmitt trigger circuit 47, the rotation direction of the rotating grating plate 41 is discriminated, and the instruction signal for instructing the second counter 50 to increase or decrease the count is output.

The second counter 50 counts the output pulses of the first pulse generation circuit 48 based on the output of the first direction discrimination circuit 49, and outputs the count value to the first control calculation unit 80.

The second counter 50 is configured such that its count value is reset by the zero set signal output from the first control calculation section 80. Here, the zero set signal, when collimating the telescope toward the reference direction,
It is output based on the operation of the surveyor.

The first control calculation unit 80 converts the count “1” of the second counter 50 into a rotation of 1/4 pitch of the rotary grid, and displays it on the first display 82 as a horizontal angle.

The altitude angle measuring unit 60 measures the rotation angle of the telescope unit 7 with respect to the suspension unit 5 by an incremental encoder.

The altitude angle measuring unit 60 has substantially the same configuration as the horizontal angle measuring unit 40, and includes a rotating grating plate 61 having a rotating grating 61a, a light source 62, a lens 63, a fixed grating plate 64 having fixed gratings 64a and 64b, and a third Schmidt. Trigger circuit 66, fourth Schmitt trigger circuit 67,
It is composed of a second pulse generating circuit 68, a second direction discriminating circuit 69, and a third counter 70.
Differences from the function will be described, and detailed description of equivalent components will be omitted.

The rotating grating plate 61 is attached to the telescope unit 7 and rotates together with the telescope unit 7. On the other hand, the light source 62, the lens 63, the fixed grid plate 64, and the light receiving elements 65a and 65b are attached to the support section 5.

The count value of the third counter 70 is reset by a horizontal position signal from a horizontal position detection unit (not shown) that detects a horizontal position mark provided on the rotary grating plate 61.

In this embodiment, in the horizontal angle measuring unit 40, the rotating grid plate 41 is attached to the suspension unit 5, and the others are attached to the substrate 4.
Is attached to the telescope unit 7, and the others are attached to the frame unit 5. However, it is sufficient to know the relative rotation amount, and there is no problem even if the attachment target is reversed.

The horizontal angle measuring unit 40 and the altitude angle measuring unit described above
60 is an angle measuring unit, and the first arithmetic control unit 80
Operates as a mode setting unit when the data collector 100 is connected.

In this embodiment, since the horizontal angle measuring unit 40 and the altitude angle measuring unit 60 are configured by the incremental encoder, the measurement operation is continued regardless of which mode the main body 1 is in. However, if the horizontal angle measuring unit 40 and the altitude angle measuring unit 60 are configured by an absolute encoder or the like, it can be configured to operate only when the angle measuring mode is set, like the distance measuring unit 20.

Even if the data collector 100 is not connected to the main body 1, the surveyor selects the appropriate mode with the first operation unit 83, and the distance to the measurement point, horizontal angle, and altitude angle Measurement is performed and necessary data is stored in the first memory 81.

FIG. 4 shows a circuit block diagram of the data collector 100. The data collector 100 is mainly composed of a second control arithmetic unit 101, a second memory 102, a program memory 103, and a second memory.
The display unit 104, the second operation unit 105, and the interface 106 are included.

In the second memory 102, the point name data of the survey target input by the surveyor from the second operation unit 105, the point data, the survey data obtained by calculation based on the program stored in the program memory, the cable 2, Various data such as data sent from the first control arithmetic unit 10
Stored and read by 1.

In the program memory 103, the survey data necessary for standard survey work is calculated according to the process of survey work, and
Various surveying programs for obtaining are stored.

The second control calculation unit 101 switches the mode of the main body 1 via the first control calculation unit 80 according to a surveyor's command from the second operation unit or a survey program stored in the program memory 103, and outputs the measurement result. Various controls such as display and various calculations such as calculation of survey data necessary for survey from various data stored in the second memory according to a survey program.

FIG. 5 shows a flowchart in the case where the main body 1 and the data collector 100 are connected and a surveying program as one of surveying programs is executed.

The flow chart will be described later. First, the surveying work will be briefly described with reference to the drawing in FIG.

Known points such as known points already measured on the site and described on the map or given coordinates are point A and point B, and on the line connecting point A and point B The horizontal measurement points (measurement points) indicated by the horizontal angles H ₁ and H ₂ defined by using the direction X as the reference direction and the horizontal distances HD ₁ and HD ₂ defined by using the point B as the reference points are point C and point D. .

Here, install a surveying device at point B, collimate point A, zero-set the horizontal angle, then collimate in the direction of horizontal angle H ₁ to find the point at horizontal distance HD ₁ The measurement point is set as C, and the measurement work will proceed in the same manner.

When the surveying program is started, as shown in FIG. 5, the process proceeds to step S ₁ and, via the first control calculation unit 80,
The mode of the main body 1 is switched to the horizontal angle measurement mode, and the process proceeds to step S ₂ . The horizontal angle measurement mode consumes less power than the distance measurement mode, and this switching saves power.

In step S ₂ , the surveyor inputs the point names as the point data of the known points and the measurement points and the coordinate data as the point data corresponding to the point names by the second operation unit 105. The point names of the known points and the measurement points and the coordinate data corresponding to the point names can be input by sending the data stored in the external storage device through the interface.

The input spot data is stored in the second memory 102. When the input of this data is completed, the second operation unit 10
Operate the <ENT> key of 5. By operating the <ENT> key, the process proceeds to Step S _3.

This data entry is not necessary if it is prepared in advance.

In step S _3, enter a local point name that measurement設作industry is carried out, when the input of the local point name is completed, <ENT>
By operating the key, the process proceeds to step S ₄ .

The local point name is the name indicating the area where the surveying work is performed.
It is used to extract the coordinate data necessary for surveying the area of this local point name from the input point data.

In step S ₄ , the machine point number NO is input, and when the input of this machine point number NO is completed, <EN
By operating the T> key, the process proceeds to step S ₅ .

The machine point number NO is the location (hereinafter,
It's a machine number) number, so you can type in a number for convenience of input.

In step S ₅ , the rear view number NO is entered,
After this, when the input of the viewpoint number NO is completed, the <ENT> key is operated to move to step S ₆ .

Rear-view point number NO is a point for forming a reference direction for surveying in combination with mechanical points (hereinafter referred to as rear-view point)
Is the number. The rear-viewpoint point for forming the reference direction of this survey is point A and the machine point is point B in the example of FIG.

In step S _6, the viewpoint after a viewpoint number NO after input collimated by the telescope 6 in step S _5, the collimation is completed, the process proceeds to step S _7.

In step S ₇ , in order to set the collimation direction of the rear viewpoint to the angle 0 °, <SET> of the first operation unit 83 or the second operation unit 105.
By operating the key, the horizontal angle is zero-set, and when this horizontal angle zero-set is completed, the step
Move to S ₈ . In step S _8, the survey setting point number NO
Is input, and when the input of this surveying point number NO is completed, by operating the <ENT> key, step S
Go to ₉ .

The survey setting point number NO is the number of the survey setting point to be measured on site, and points C and D correspond in the example of FIG.

In step S _9, determined by calculating from the horizontal angle H and a horizontal distance HD to survey setting point based on the reference direction to form at the rear viewpoint and mechanical point and mechanical point stored in the second memory data, this When the calculation is completed, the process proceeds to step S ₁₀ .

In step S _10, to display the horizontal angle H determined at step S ₉ to the first display 82, the process proceeds to step S ₁₁ with the display.

In step S ₁₁ , the surveyor rotates and sets the telescope unit 7 so that the horizontal angle H displayed in step S ₁₀ is reached.

When the set of the horizontal angle is completed by operating the <ENT> key, the process proceeds to step S _12.

In this step S ₁₂ , the horizontal angle measurement mode has already been set in step S ₁ , so there is no need to change the mode here.

First, in step S _12, switching the mode of the main body 1 in ranging mode via the first control arithmetic unit 80, transmits the horizontal distance HD obtained in step S ₉ as an offset value, the first control arithmetic unit 80 Then, in the first control calculation unit 80, the distance to the reflecting mirror measured by the main body 1 is measured in “cm” unit in the distance measurement mode, and the difference from the horizontal distance HD as the offset value is first measured.
It is displayed on the display device 82, and the process proceeds to step S ₁₃ .

In step S _13, in a direction in which the difference display displayed by the first display 83 is "0", to move the pawl provided with the reflector 9, perform the combined approximate position, where the survey regret Drive in. This is, When finished, operate the <ENT> key, the process proceeds to step S _14.

Since this rough alignment is performed in the rough distance measurement mode in which the average number of times is small, the distance measurement time is short and quick alignment operation is possible.

In step S _14, the <ENT> key operation in step S _13, precise distance measurement mode is set. And
The difference between the distance measurement result and the offset value is displayed in the same manner as when the rough distance measurement mode is set.

Here, it is displayed in units of "mm", and the surveyor visually checks the display value displayed in this precision distance measurement mode,
With a mark indicating the head setting point position measurement carried out the work, such as driving a nail into the regrets that you typed in step S _13, precise alignment is completed. When this precise alignment is completed, the process proceeds to step S ₁₆ . In step S _16, it is determined whether or not staked all points to be staked (stations) to mechanical point input in step S _4.

Here, still, if there are remaining that has not been staked, the process proceeds to step S _17. Then, set the body 1 in a horizontal angle setting mode, the process returns to step S _8, to continue the stakeout enter a new survey setting point number NO.

Also, if completed all stations set to mechanical point input, in step S ₁₈ proceeds to step S _18, the staked against all mechanical point determines whether or not it is completed.

Here, if the remaining mechanical point that is not staked, the process proceeds to step S _19, sets the main body 1 in a horizontal angle setting mode, the flow returns to step S _4, and enter a new mechanical point number NO Then, if the surveying is continued and the surveying for all machine points is completed, the surveying work is completed.

As described above, the second control arithmetic unit 101 plays the role of an arithmetic unit.

Note that the measurement is performed for the altitude angle according to the same flowchart.

(Effects of the Invention) As described above, according to the present invention, the distance measuring unit that consumes a large amount of power calculates the distance measurement data by the calculation unit and measures the distance when the display unit displays the data. When the distance mode is set and the display unit displays the data according to the survey data other than the distance-related survey data, the mode setting is performed so that the units other than the one that consumes a large amount of power are operated to save power.

[Brief description of drawings]

1 is an external view of a surveying instrument according to the present invention, FIG. 2 is a front view of the main body 1, FIG. 3 is a block diagram of an internal circuit of the main body 1,
FIG. 4 is a block diagram of the circuit of the data collector 100, and FIG.
FIG. 6 is a flowchart showing a surveying procedure of the surveying device, and FIG. 6 is an explanatory diagram for explaining the surveying work. 1 ... Main body, 20 ... Distance measuring unit, 40 ... Horizontal angle measuring unit, 60 ...
… Altitude angle measuring unit, 80 …… First control computing unit, 82 …… First display, 100 …… Data collector, 101 …… Second control computing unit, 102 …… Second memory, 103 …… Program memo , 104
...... Second display.

Claims (2)

(57) [Claims] 1. A distance measuring unit for receiving light from a light emitting unit through a reflecting mirror arranged at a measuring point to measure a distance to the measuring point and an angle measuring unit for measuring an angle in a collimating direction of a telescope. And a memory unit that stores data of each point, an arithmetic unit that obtains surveying data necessary for a predetermined surveying procedure based on the data stored in the memory unit, the distance measuring unit and the angle measuring unit. Display unit for displaying the measurement data of the measurement unit and the survey data obtained by the calculation unit, and the display unit for displaying the measurement data on the distance in accordance with the predetermined survey procedure. A surveying device characterized by comprising a mode setting section for setting a ranging mode for performing ranging and displaying measurement data other than the ranging when displaying surveying data other than the ranging. . 2. The surveying device according to claim 1, wherein the mode setting unit sets an angle measurement mode for causing the angle measurement unit to perform angle measurement when displaying surveying data other than distance measurement. A surveying instrument characterized in that it is configured to set.