AU615382B2 - Surveying apparatus - Google Patents

Description

AUSTRALIA

PATENTS ACT 1952 Form COMPLETE SPECIFICATION

(ORIGINAL)

FOR OFFICE USE Short Title: 6 58 2 Int. Cl: Application Number: Lodged: Complete Specification-Lodged: Accepted: Lapsea: o Published: SO. Priority: S Related Art: 0 a i It S. TO BE C6MPLETED BY APPLICANT Name of Applicant: SOKKISHA CO., LTD.

Address of Applicant: 1-1-1, TOMIGAYA o"SHIBUYA-KU

~TOKYO

JAPAN

Actual Inventor: Address for Service: GRIFFITH HACK CO., 601 St. Kilda Road, Melbourne, Victoria 3004, Australia.

Complete Specification for the invention entitled: SSURVEYING APPARATUS.

The following statement is a full description of this invention including the best method of performing it known to me:- I Background of the Invention 1. Field of the Invention The present invention relates to a surveying apparatus such as an electronic total station (tacheometer) or an electronic theodolite.

2. Description of the Related Art The present invention can be applied to a surveying apparatus which allows transmission/reception of survey "data between a memory in which survey data from the a 0 o0 0 surveying apparatus is stored and a detachable memory card.

A procedure for recording survey data is stored in a surveying data collector for recording survey data from a conventional surveying apparatus. Survey data is 15 recorded in accordance with the procedure.

0006. In the conventional surveying apparatus, a memory .card in which only survey data is recorded is used o o together with tie surveying data collectcr.

The memory card used in the conventional surveying 6 't 'o 20 apparatus has a connector portion which is brought into direct contact with a connector portion of the surveying apparatus. The connector portion of the memory card serving as a contact is externally exposed (inside a card storage portion). Dust or water tends to adhere to this exposed portion. For this reason, transmission/ reception of survey data (data write from the surveying apparatus to the card and data read from the card) may

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k 2 not be smoothly or accurately performed.

Furthermore, in the conventional memory card type surveying apparatus, various data for surveying are not input to a microcomputer incorporated in the apparatus in advance. For this reason, any command such as a command for a staking out operation cannot be given to the surveying apparatus by using the surveying data collector. In addition, although a large number of functions associated with survey are added tc the data collector, 10 all of them are not usually used and the data collector o 0 0 is difficult to handle because of the complexities in o .o use of these functions.

000 0 Summary of the Invention It is an object of the present invention to provide 00000 15 a surveying apparatus which can solve these problems.

no":°o (First Means) *o o According to the present invention, there is provided a surveying apparatus including distance/angle measuring means, a storing/operating section, a signal 20 transmitting/receiving section, a keyboard section, a a de,-c6alblc lemicry car display control section, and a display section, wherein the distance/angle measuring means comprises a distance measurement signal processor for receiving a signal from a light-emitting/-receiving sensor, a horizontal angle encoder signal processor for receiving a signal from a horizontal angle sensor, and a vertical angle encoder signal processor for receiving a signal from a vertical -1 i I- I_ 3 o o 0 o o 1,0 o 0 o «0 00 0 0 0 0 0 0 00 eO a o ,o o o o o 0 o 0 0 0 000 0 o o O 0 o f o 0 0 0 04 0 00 *0 0 0 0 0 0 angle sensor, the storing/operating section receives a signal from the distance/angle measuring means, supplies survey data to the signal transmitting/receiving section upon operation of the keyboard section, writes the survey data in-a-memory card, and displays the survey data on the display section through display control section upon operation of the keyboard section, and the signal transmitting/ receiving section performs transmission/ reception of the survey data with respect to a static 10 signal transmitting/receiving section of the memory card by electromagnetic coupling.

(Second Means) According to the present invention, there is provided a surveying apparatus, wherein an inserting 15 portion of the surveying apparatus of the first means, in which the memory card is inserted, is arranged in a columnar portion (standard portion) of the surveying apparatus.

(Third Means) 20 According to the present invention, there is provided a surveying apparatus, wherein the memory card and the signal transmitting/receiving section of the surveying apparatus of the first means are sealed.

(Fourth Means) According to the present invention, there is provided a surveying apparatus including distance/angle e o o o o a6 oo 0 00 0 0 ICI R- L /P I/

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ii i~ IIII~I11~-_1~ il..l XI -I 4 measuring means, a central processing unit, a signal transmitting/receiving section, a keyboard section, a a de(OcA.(e memory card/ display control section,,A and a display section, the central processing unit receiving a signal from the distance/angle measuring means, supplying survey data to the signal transmitting/receiving section upon operation 4e of the keyboard section, writing the survey data in-amemory card, and displaying the survey data on the dis- 0 0oo 00 0o play section through the display control section upon 0 00 o 00 10 operation of the keyboard section, and the signal 00 0 o transmitting/receiving section performing transmission/ 0 o o 0 reception of the survey data with respect to a signal o0e 0 transmitting/receiving section of the memory card in response to a command from a storing/operation section ooo, 15 in the central processing unit, wherein various data 0000 .0.0 required for a survey and the survey data are stored in 00 0 the storing/operating section, and various data required 0 0 0 0 for a survey are input to the memory card in advance, the input various data can be changed as needed, a survey is 00°° 20 performed in accordance with the various data in the memo 0 0 r 0 o 0o ory card, and survey data is stored in the memory card.

Since the present invention has the above-described arrangement, the following effects can be obtained: Since the memory card for storing survey data is statically or electromagnetically coupled to the surveying apparatus, waterproof and dustproof effects can be obtained. In addition, the memory card i 11 i wi- i can be easily inserted as compared with contact type coupling.

Since the card inserting portion is formed in the columnar portion, the keyboard section and the display section can be arranged on both the sides of the surveying apparatus. In addition, face left observation in a survey can be performed in the same manner as with face right observation without degrading the operability 9 0 f e °of the apparatus.

0 When various data required for a survey are S0 input to the memory card in advance, since the various I a ,data are displayed on a display section of the surveying apparatus, the time required for preparation to be performed prior to an actual survey can be greatly 15 shortened.

If a single memory card which is much lighter than a data collector is carried, survey data can be °oe recorded in the card, and data can be read out from the card by an external unit so as to be graphically pro- S 20 cessed. Therefore, operation from a survey to a graphic processing can be greatly facilitated.

Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations 1. i, o 00 0 0 0 00 P 00 0 a 0 P 0 0 0 0 oa o 0 0 000 0 6 particularly pointed out in the appended claims.

Brief Description of the Drawings The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate presently preferred embodiments of the invention, and together with the general description given above and the detailed description of the preferred embodiments given below, serve to explain the principles of the invention.

.0 Fig. 1 is a perspective view showing a surveying apparatus according to the first embodiment of the present invention; Fig. 2 is a block diagram showing an internal circuit of the first embodiment; .5 Fig. 3 is a block diagram showing internal circuits of a surveying apparatus main body and a memory card according to the first embodiment; Fig. 4 is a sectional side view of a memory card inserting portion in the first embodiment; 20 Fig. 5 is a perspective view showing a surveying apparatus according to the second embodiment of the present invention; Fig. 6 is a block diagram showing an internal circuit of the second embodiment; Fig. 7 is a block diagram showing internal circuits of a surveying apparatus main body and a memory card according to the second embodiment; j$ a a& 000 1 4000 0 00 00 a <o QO ao o 00 6 0 0 00 0 00 0 0 Ii& a

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i 7 Fig. 8 is a sectional side view of a memory card inserting portion in the second embodiment; Figs. 9A, 9B and 9C form a flow chart showing a procedure for writing data from the surveying apparatus in the memory card according to the second embodiment; Figs. 10A and 10B form a flow chart showing a procedure for reading out data from the memory card into the surveying apparatus according to the second embodiment; and 10 Fig. 11 is a view showing a display format.

Detailed Description of the Preferred Embodiments 0 aO 00 0 0 r0 0 0 00o 0 0 0 S0 0 0 0 0 0 0 0 0 0 O o 0 00 0 0 00 00 0 0 00 0 0 0 Figs. 1 to 4 show the first embodiment of the present invention. Fig. 1 is a perspective view of a surveying apparatus of the present invention.

15 Referring to Fig. 1, a surveying apparatus main body 1 is mounted on a tripod (not shown) through a leveling table 2. The main body 1 is constituted by a columnar portion 3 which can be rotated about a vertical axis relative to the leveling table 2, and a telescope 20 portion 4 which can be pivoted about a horizontal axis relative to the columnar portion 3. A keyboard 5 and a display portion 6 are arranged at the lower portion of the surveying apparatus main body 1. The keyboard 5 is used for selection of survey data and the like. The display portion 6 serves to display survey data. A memory card inserting portion 7 is attached to the columnar portion 3. A memory card 8 can be inserted in

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8 0 00e 0 0 0 0 00 o o e Q oo Ve 0 0o o o o o o0 B o 0 0 0 oo0 o 000 0 the inserting portion 7 through an insertion slit formed therein.

Fig. 2 is a block diagram showing an internal circuit of the surveying apparatus main body 1. In this circuit, the distance from the surveying apparatus to a station is processed by a distance measurement signal processor 101, and the processed data is supplied to a central processing unit (CPU) 102 so as to be stored and operated. In addition, angle measurement 10 data from a horizontal encoder 103 and a vertical encoder 104 is supplied to the CPU 102. Survey data from the CPU 102 is supplied to a signal transmitting/ receiving section 105 of the apparatus main body 1, and desired survey data can be written in the memory card 8.

15 Reference numeral 106 denotes a keyboard section. By performing a predetermined key operation of the keyboard section 106, survey data from the CPU 102 can be displayed on a display section 108 through a display control section 107.

20 Fig. 3 is a block diagram showing internal circuits of the surveying apparatus main body and the memory card. Power is supplied to the memory card 8 by electromagnetic coupling between a power transmitting section Ib of the apparatus main body 1 and a power transmitting section 8b of the memory card 8.

Similarly, transmission/reception of survey data is performed between a signal transmitting/receiving 0oo 0 0 a0 0 0 00 0 00 0 0 0 00 0 0 0 0 00 00 0 0 0 o 00 9 section la of the apparatus main body 1 and a signal transmitting/receiving section 8a of the memory card 8 by electromagnetic coupling. The memory card 8 incorporates the power transmitting section 8b for receiving power, a backup power source (not shown), the signal transmitting/receiving section 8a for performing signal transmission/reception, and signal processing and data converting sections 8c and 8d for processing a signal o'0° from the section 8a .'nd converting the signal into data 10 which can be read/written with respect to a memory 0 section 8e.

110 0 So Fig. 4 is a sectional side view of the memory 0 0 card inserting portion 7. The memory card inserting portion 7 has a space in which a memory card can be 15 inserted. When the memory card 8 is inserted, the 0000 0 00 distal end of the memory card 8 is brought into contact 0*00 with a stopper 7a. A leaf spring 7b is fastened to the 00 00 o rear surface of the inserting portion 7 with a screw.

When the card 8 is inserted, it is urged against the 20 apparatus main body by the leaf spring 7b so as to be o- held. In order to provide another holding effect, recesses 8f are respectively formed in side portions of the card 8, and lock portions which are fitted in the recesses 8f so as to hold the card 8 are respectively formed on the side portions of the inserting portion 7.

The signal transmission and reception portions la and Ib are respectively formed on a circuit board on the IC I~ 9 10 o 0o 0 0 0 00 a a o o aa o 0 o 0 6 00 a 0 0 0 0 0 00 0 4& 000 0 0000 0 0 a o 00*0 e o Q o o 00 0 0 0 0 04I

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0; 0 4 1 apparatus main body side at a position where they oppose the signal transmitting/receiving portion 8a and the power transmitting portion 8h arranged in the card 8.

These portions have no contacts. A waterproof member a rubber member) 9 is formed on the periphery of the circuit board so as to provide a waterproof effect to the apparatus main body.

A thin film 10 is formed on a surface of the circuit board which opposes the memory card 8 so as to 10 obtain waterproof and dust proof effects and to prevent damage to the circuit board upon insertion of the card 8 without interfering with the electromagnetic coupling effect.

Figs. 5 to 11 show the second embodiment of the present invention. Fig. 5 is a perspective view of a surveying apparatus of the present invention.

Referring to Fig. 5, a surveying apparatus main body 1 is mounted on a tripod (not shown) through a leveling table 2. The apparatus main body 1 is consti- 20 tuted by a columnar portion 3 which can be rotated about a vertical axis relative to the leveling table 2, and a telescope portion 4 which can be pivoted about a horizontal axis relative to the columnar portion 3. A keyboard 5 and a display portion 6 are arranged at the lower portion of the surveying apparatus main body 1.

The keyboard 5 is used for selection of survey data and the like. The display portion 6 serves to display 1~ I ;i i_ It; L;xi i :i 11 o o# Oa 0 4 04 oa 0 *0c o d a, D 0 00 04 0 00 0 survey data. A memory card inserting portion 7 is attached to the columnar portion 3. A memory card 8 can be inserted in the inserting portion 7 through an insertion slit formed therein.

Fig. 6 is a block diagram showing an internal circuit of the surveying apparatus main body 1. In this circuit, the distance from the surveying apparatus to a station is processed by a distance measurement signal processor 101, and the processed data is supplied to a 10 central processing unit (CPU) 109 so as to be stored and operated. In addition, angle measurement data from a horizontal ancoder 103 and a vertical encoder 104 is supplied to the CPU 102. Survey data from the CPU 102 is supplied to a signal transmitting/receiving section 15 105 of the apparatus main body 1, and desired survey data can be written in the memory card 8. Reference numeral 106 denotes a keyboard section. By performing a predetermined key operation of the keyboard section 106, survey data from the CPU 102 can be displayed on 20 a display section 108 through a display control section 107. In addition, machine numbers, station numbers, constants, and the like can be stored in the memory card.

Fig. 7 is a block diagram showing internal circuits of the surveying apparatus main body and the memory card. Supply of power and transmission/reception of survey data with respect to the memory card 8 are o#00 0 0 0 raO Oo*0 0 00a 0 0 0 0* t 0 0 0 04 *0 t tO 4 i T- -LEel ~m 12 performed by electromagnetic coupling between a signal transmitting/receiving section la of the apparatus main body and a signal transmitting/receiving section 8a of the memory card 8. The memory card 8 incorporates a power detecting section 8b for extracting power from a received signal, a backup power source (not shown), the signal transmitting/receiving section 8a for performing signal transmission/reception, and signal processing and 4 a data converting sections 8c and 8d for processing a 0 signal from the section 8a and converting the signal into data which can be read/written with respect to a memory section 8e.

Fig. 8 is a sectional side view of the memory card inserting portion 7. The memory card inserting portion 7 has a space in which a memory card can be inserted.

4When the memory card 8 is inserted, the distal end of the memory card 8 is brought into contact with a stopper S-7a. A leaf spring 7b is fastened to the rear surface of the inserting portion 7 with a screw. When the card 8 0 6K 20 is inserted, it is urged against the apparatus main body by the leaf spring 7b so as to be held. In orde_ to provide another holding effect, recesses 8f are respectively formed in side portions of the card 8, and lock portions which are fitted in the recesses 8f so as to hold the card 8 are respectively formed on the side portions of the inserting portion 7. The signal transmission/reception portion la is formed on a circuit

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a aa 13 board on the apparatus main body side at a position where it opposes the signal transmitting/receiving portion 8a in the card 8. These portions have no contacts. A waterproof member a rubber member) 9 is formed on the periphery of the circuit board so as to provide a waterproof effect to the apparatus main body.

A thin film 10 is formed on a surface of the circuit board which opposes the memory card 8 so as to obtain waterproof and dust proof effects and to prevent damage to the circuit board upon insertion of the card 8 without interfering with the electromagnetic coupling effect.

Fig. 9 is a flow chart showing a procedure for writing data from the surveying apparatus in a memory card.

The procedure for writing data in the memory card will be described below with reference to Fig. 9.

Preparation 20 Before data is stored in the memory card in advance, operation contents of the following items are written in the microcomputer of the surveying apparatus so as to shorten the time required for input of data in the memory card: Initialization of the memory card; Protection of the memory card i 14 If t r I I 4 I t' I fl 0 04 If $4c 40 4d 1 4ii O Protecting the memory card so that data written therein cannot be erased, or not? O Protecting the memory card so that data cannot be read out therefrom, or not? Selection of an automatic target number increment function Setting the automatic station number increment function for incrementing an input target number one by one or inputting a target number when data storage of 10 the memory card is performed? Setting an input mode for inputting a comment at each station number or not? Selection of output contents of survey data transferred from the CPU memory to the memory card Q Displaying a range, an elevation angle, and a horizontal angle or not? O Displaying an elevation angle, a horizontal angle, and an X-Y inclination angle (correction value of the elevation angle) or not? 20 G Displaying coordinate data (the coordinate value of a target) or not? G Displaying coordinate data, a range, an elevation angle, and a horizontal angle or not? Input of various data necessary for survey data O The date of a survey 0 The station number of the surveying apparatus i~ 1_ I~_i~C 15 (apparatus position number) SThe installation height of the surveying apparatus The temperature at the time of the survey The atmospheric pressure at the time of the survey O- The coordinates of the station of the surveying apparatus .0 0 Selection of distance measurement unit: meter o0 10 or foot? 0° I Selection of temperature and atmospheric 0 pressure units: °C mbar, °C Hg, OF mbar, 0 00 0 F Hg, or °F inch Hg? SSelection of a prism constant: -99 mm to 99 mm Selection of angle measurement unit: degree or ao+" gon? 0 0 Selection of an angle measurement resolution: 4 00 1" or 2 A vertical angle format: zenithal angle elevation angle horizontal angle 00 900 SAutomatic or manual input of a vertical angle zero point? @4 Correction of the vertical angle? O Automatic or manual input of a horizontal angle zero point? A surveyor changes only the contents of the above

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K~ l i i B 16 items which he/she desires to change.

Surveying apparatus data O An apparatus type O A serial number A ROM version o o a I o o D ro oo o 0 o 00 0 0 0* 0 0 0 0 0 0 0 0 oaa o 0 0 9 0 0 000 0 1c *0 *r 0 00 0 0 0, t ft e Procedure for writing data in the memory card In step 1, the memory card is inserted. In step 2, a key for writing data in the memory card is depressed. In step 3, it is checked whether the card is properly inserted. If YES in step 3, it is checked in step 4 whether the memory card is protected against data write. If YES in step 4, the protection is canceled in step 5, and the flow returns to step 2. If NO 15 in step 3, since inappropriate insertion of the card is displayed in step 6, insertion of the card is performed again, and the flow returns to step 2. If NO in step 4, the flow advances to step 7 to read out a memory area allowing data input to the memory card. In step 8, 20 the readout memory area is displayed. In step 9, data write selection keys are displayed, and one of keys r. and depressed to enable a write operation of corresponding data. If a clear key is depressed in step 9, the flow is ended.

If the key 0 is selected, it is checked whether setting of target numbers is performed by the automatic station number increment function. If NO in step IV'r -g ;--ar 17 9 eQ o os o o o oo e a e a 0 00* S o o 0 te 0 4 00 0 0 t 00 0 0 fr 0t 0 O 00( 0 00 6 a Ii 0 6 ft 0 i 0 0 01 a target number is input in step 11, and the flow advances to step 12. If YES in step 10, the flow skips step 11 and advances to step 12. In step 12, it is checked whether a comment for setting is present. If YES in step 12, a comment is input in step 13. If NO in step 12, it is checked in step 14 whether data is to be written in the card. If YES in step 14, distance and angle measurement operations and the like are performed in step 15. The obtained data are written in the RAM of 10 the microcomputer and the memory card in step 16. In step 17, the data written in the memory card and the RAM are compared with each other. If they coincide with each other, an end display card is performed in step 18, and the flow returns to step 9. If they do not coincide with each other, an error display card is performed to inform the occurrence of a trouble.

If the key is selected in step 9A, survey data are sequentially input in steps 20 and 21. In step 22, it is checked whether the respective data are to be 20 written in the card. If YES in step 23, the respective data are written in the memory card in step 23, and the flow advances to step 17.

If the key T is selected in step 9A, apparatus data is written in the memory card in step 30, and the flow advances to step 17.

Fig. 10 is a flow chart showing a means for reading out data from the memory card into the surveying I lii 31ipl 18 apparatus. A procedure for reading out data from the memory card into the surveying apparatus will be described below with reference to Fig. Procedure for reading out data from the memory card In step 41, the card is inserted. A data read key is depressed in step 42. Since the processing in steps 41 to 46 corresponds to that in steps 1 to 6 of the 0 00 procedure for writing data in the memory card, a 0 a 10 description therefore will be omitted.

0 oIf it is determined in step 44 that read protection °0 is not provided, a read selection key or O is 0 e0 Sselected in 49A. If the key Q for a table of contents is selected, a station number stored in the card is read 15 out in step 50, and is displayed in step 51. When o predetermined data is read out, an end key is depressed in step 52.

00 00 S0 The table of contents includes five items (to be described later). When a setting out operation employed °4 o 20 in civil engineering and construction is to be performed, if set point data associated with desired points where stakes are driven into the ground is input in advance, the stakes can be driven into the ground at the desired points by calculating/displaying the difference between the stored data and actual measurement data by using a measuring function for stakeout arranged in the surveying apparatus and directing a collimation line 19 (sighting line) of a telescope and moving the prism target so as to set the difference to be zero.

In this case, a stakeout function is a function for measuring a specific position (the distance or designed distance from a desired point where a stake is driven into the ground) which is separated from the apparatus point by a certain distance (actual distance) by moving a prism, displaying with (plus and minus) 0 00 o 0whether a set point is located before or after the 000 10 actual position, and at the same time calculating/ ~4 0 0 displaying the distance and difference between the p points.

oo s As described above, although the conventional surveying apparatus has the stakeout functions for distances and angles, set point data cannot be input to the oo apparatus in advance unlike in input to the memory card.

If, therefore, set point data (distances and O angles) is input to the memory card in advance, the CPU of the surveying apparatus can read out the stored data 20 from the memory card, and calculate and display the difference between the readout data and actual measurement values.

With regard to the stakeout function for angle measurement, if a back sight station (known point) is collimated relative to a station point where the surveying apparatus is set, an azimuth at a set point can be determined. If the data of the back sight station point 1 I -1 I

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i 1_ Lj~.rUI--~I~ 20 is input to the memory card in advance, stakeout of angles can be easily performed. Hence, the operation efficiency can be increased.

In addition to the function for displaying distance and angle measurements, the surveying apparatus in Fig. 5 has a tracking function for measuring moving points by moving the prism, a coordinate measuring function for measuring a coordinate station using two 0, points, the back site station (known coordinates) S* 1 0 and a station point (known coordinates) or a station as Sreference points, and a missing line measurement func- .tion for measuring two points and displaying a distance value between the two points.

Since the other stakeout functions described above can be performed in the same manner by storing set point data in the memory card, a description thereof will be too* 4 04 omitted.

A read operation with respect to the memory card in the above-described staking out operation will be 20 described with reference to the flow chart in Fig. In step 50 (selection of items), a setting out data code is read out. In step 51, the data code is displayed.

In step 60 (selection of data), a data code is input.

In step 61, various data required for a survey are read out.

If a data search key is depressed in step 49A, and a target number or data code is input in step I- I 21 o 00 o 0 o a a a o *4 0r 0 0- 0 00 a 6 a I a a 9 SQ 0 S O a o «o kI s s~ i station data at a predetermined station number or various data required for a survey is or are read out in step 61. In step 62, the station data or the various data is or are set in the surveying apparatus. When the end key (clear key) is depressed, the flow returns to step 49 again.

If the clear key is selected in step 49A, the processing is completed.

Data stored in the memory card is output from an external output in response to a command from an external unit in accordance with a format shown in Fig. 11.

Fig. 11 shows an output format of surveying apparatus data as an item of the table of contents. Data from 15 the memory card is output'with such a format.

For example, the table of contents includes the following items: 1. Data required for a survey 2. Distance and angle data 3. Angle correction data 4. Coordinate data Coordinate, distance, and angle data.

Each data is output with its own format.

Additional advantages and modifications will readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details and representative device, shown 22 and described herein. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

o o 00 0 0 09 0 00 S #o a 0e 0o a 0. 0 I t 00

Claims (4)

1. A surveying apparatus including distance/angle measuring means, a storing/operating section, a signal transmitting/receiving section, a keyboard section, a a de14acA t MeMocy oA-rd display control section,A and a dispiay section, wherein said distance/angle measuring means comprises a distance measurement signal processor for receiving a signal from a light-emitting/-receiving sensor, a verti- cal encoder signal processor for receiving a signal from 10 a horizontal angle sensor, and a horizontal encoder sig- nal processor for receiving a signal from an vertical angle sensor; said storing/operating section receives a signal from said distance/angle measuring means, supplies survey data to said signal transmitting/ receiving section upon operation of said keyboard section, writes the survey data in-a- memory card, and displays the survey data on S° said display section through said display control section upon operation of said keyboard section; and 20 said signal transmitting/receiving section performs transmission/reception of the survey data with respect to a contactless signal transmitting/receiving section of said memory card by electromagnetic coupling.

2. An apparatus according to claim 1, wherein an inserting portion for said memory card is arranged in a columnar portion of said surveying apparatus.

3. An apparatus according to claim 1, wherein said ^o^ 4 24 memory card and said signal transmitting/receiving section are sealed.

4. A surveying apparatus including distance/angle measuring means, a central processing unit, a signal transmitting/receiving section, a keyboard section, a A c(accAabe leMory cordl/ display control section,Aand a display section, wherein said central processing unit receives a signal from said distance/angle measuring means, supplying survey o <data to said signal transmitting/receiving section upon a'te 10 operation of said keyboard section, writing the survey S" data in,- memory card, and displaying the survey data on s *said display section through said display control section a upon operation of said keyboard section; said signal transmitting/receiving section per- forms transmission/reception of the survey data with respect to a signal transmitting/receiving section of said memory card in response to a command from a o I storing/operation section in said central processing unit, wherein various data required for a survey and o°Vo 20 the survey data are stored in said storing/operating section; and various data required for a survey are input to said memory card in advance, the input various data can be changed as needed, a survey is performed in accordance with the various data in said memory card, and survey data is stored in said memory card. A surveying apparatu4 substantially as PAv? 'V C> 25 hereinbefore described with reference to the accompanying drawings. DATED THIS 28TH DAY OF MARCH 1990 SOKKISHA CO., LTD. By its Patent Attorneys: GRIFFITH HACK CO. Fellows Institute of Patent Attorneys of Australia a6 0