CN201025441Y - Electronic digital display wheel range finder - Google Patents
Electronic digital display wheel range finder Download PDFInfo
- Publication number
- CN201025441Y CN201025441Y CNU2007200786096U CN200720078609U CN201025441Y CN 201025441 Y CN201025441 Y CN 201025441Y CN U2007200786096 U CNU2007200786096 U CN U2007200786096U CN 200720078609 U CN200720078609 U CN 200720078609U CN 201025441 Y CN201025441 Y CN 201025441Y
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- Prior art keywords
- microprocessor
- digital display
- electronic digital
- handle
- roller
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- Expired - Fee Related
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Disclosed is an electronic digital display roller range finder. A plurality of permanent magnets are distributed on a roller surface of a roller, and a bottom end of a handle is fixedly connected to a protecting cover, and the protecting cover is arranged on a roller shaft and a tongue tube is fixed on thereof inner surface. Further, the electronic digital display roller range finder comprises a microprocessor which is arranged on a top end of the handle, a display and a controller which controls a keyboard, and the display and the controller are connected to the microprocessor, and a lead of the tongue tube is connected to the microprocessor through an inner hole of the handle. Two tongue tubes are configured inside the protecting cover along circumferential direction and thereof normally open contacts are separately connected to two input ports of the microprocessor. Thus the microprocessor judges rotation direction of the roller so as to do bidirectional measurement. The range finder can accurately measure straight-line or arc distance between two points on the ground, and the range is unlimited, and the range finder has convenient use, which can be operated by one person; and the measuring speed is fast, and measurement results are visually displayed and stored, therefore improving measuring efficiency, and the range finder has the functions of direct measurement and operation of area and volume and unit conversion of various lengths, areas and volumes, which has simple structure, strong anti-interference ability and low cost and is suitable for popularization and application.
Description
(1) technical field
The utility model relates to a kind of length measuring instrument, is specially a kind of electronic digital display wheeled type distance measuring apparatus that the ground face length is found range apart from point-to-point transmission that is applicable to of using magnetic sensing measurement technology.
(2) background technology
At present, for carrying out the professional surveying and mapping operation, road engineering, pipe installation, the measurement and the assessment of construction operations such as electric wire engineering have the survey instrument of the longer distance of point-to-point transmission on the many kinds of ground.
Tape measure is the most frequently used a kind of, tape measure has that cost is low, advantage such as be easy to carry, but need two people's operations when using tape measure to grow distance two point measurements, and because of the tape measure range limited, often repeatedly footage is put the chi repeated measurement, is manually added up and just can draw net result, and tape measure precision in addition is also lower.
Advantages such as laser length measuring machine has easy to use, and reading is directly perceived, but cost is much higher, general unit is difficult to configuration, and the length range of laser ranging also is limited, crosses to measure at a distance to be difficult to solve.
The mechanical type wheeled type distance measuring apparatus that utilizes the gear counting principle to make in addition in addition, it has handle and at the wheel of ground surface, wheel is the distance of passing through at the girth that the revolution of the rotation on ground multiply by wheel, by all counting number of gear drive, realize the linear measure longimetry of 2 of long distances to wheel turns.But present wheeled type distance measuring apparatus can't be realized bidirectional measurement, and memoryless data function does not more have calculation function, influences its use.
(3) utility model content
The purpose of this utility model is to disclose a kind of electronic digital display wheeled type distance measuring apparatus that can measure the air line distance or the arc length of ground point-to-point transmission quickly and easily.
This electronic digital display wheeled type distance measuring apparatus comprises handle, roller, is evenly distributed with the n block permanent magnet on the wheel face of roller, n=6～16, and it is on the circumference in the center of circle that permanent magnet is positioned at the wheel shaft, the bottom of handle and protecting cover Joint.Protecting cover by Bearing Installation in wheel shaft, the inner face of protecting cover is the identical cambered surface of circumference radian that forms with magnet, the protecting cover inner face with the fixing tongue tube of permanent magnet correspondence position, this stadimeter also comprises the controller that is installed on the handle top, this controller is microprocessor and display that is attached thereto and supervisory keyboard, and the lead-in wire of tongue tube is connected to the microprocessor of controller by handle center's endoporus.
Definite when the roller perimeter L, all numbers that the mensuration roller turns over just can calculate the distance that roller turns over, and promptly obtain straight line or arc length between 2.When roller rotates, n on a wheel face permanent magnet makes its normally opened contact closure through the tongue tube in the protecting cover successively, and the each closure of tongue tube promptly has pulse signal to deliver to the microprocessor of controller, obviously, whenever receive a pulse signal, the distance P of roller process is:
P＝L/n
Microprocessor is according to the counting N of pulse signal, can calculate range finding from S to be:
S＝NP。
Microprocessor shows the range finding result automatically on display.
Count n or reduce the roller perimeter L by increasing permanent magnet, can improve this stadimeter resolving power, thereby improve measuring accuracy.
In the protecting cover of this electronic digital display wheeled type distance measuring apparatus along circumferential two tongue tubes of configuration, i.e. first tongue tube and second tongue tube, the normally opened contact of these two tongue tubes is received two input ports of microprocessor respectively, correspondence is called P1 mouth and P2 mouth.Roller rolls towards certain direction, when certain permanent magnet on it when the tongue tube, two tongue tube normally opened contact closures, but because the front and back position of two tongue tubes, certain spacing distance is always arranged between them, be that permanent magnet is successively near two tongue tubes, the closure of their normally opened contact has the mistiming of Millisecond, microprocessor is being monitored the level of two input ports in real time, as long as the normally opened contact closure of some tongue tubes, microprocessor then detects the level and the record of two ports immediately before the normally opened contact closure of another tongue tube, then detecting first port as the normally opened contact of first tongue tube elder generation closure is low level and the another port is a high level, and the level that detects two ports when the normally opened contact of this tongue tube next time is closed is that the low level another port is that high level is with this sign as counting forward for first port still; If when the normally opened contact of this tongue tube next time is closed, detect the level state of two ports and preceding when inequality, promptly detect first port and be high level and the another port is a low level, promptly change counting in reverse into, microprocessor is judged forward and reverse rotation of roller with this, and this stadimeter is realized bidirectional measurement.
The handle of this electronic digital display wheeled type distance measuring apparatus is collapsible, is convenient to keeping and carries.
In the microprocessor of this electronic digital display wheeled type distance measuring apparatus storer is arranged, can store the length of surveying, as the length equivalence.All lengths, area, volume unit scaled value are arranged in the storer, available keyboard is changed the not measurement result value of commensurate, as the conversion between foot, sign indicating number, the rice, the conversion between square feet, square yard, acre, square metre, the conversion between cubic feet, cubic yard, the cubic meter.The built-in counter of microprocessor can and store the result by survey length computation area, volume with keyboard.
The advantage of this electronic digital display wheeled type distance measuring apparatus is: 1, this stadimeter can be measured straight line or camber line distance between 2 on the ground exactly, and range is unrestricted, and is easy to use, and the one man operation gets final product; 2, measuring speed is fast, intuitively shows and store measurement result, can improve efficiency of measurement, also has calculation function, is convenient to area, volume is directly calculated; 3, the scaling function that has multiple length, area, volume unit, the convenient use; 4, simple in structure, not high to environmental requirement, antijamming capability is strong, and cost is low, is suitable for applying.
(4) description of drawings
Fig. 1 is the schematic perspective view of this electronic digital display wheeled type distance measuring apparatus embodiment;
Fig. 2 is this electronic digital display wheeled type distance measuring apparatus embodiment wheels side view;
Fig. 3 is this electronic digital display wheeled type distance measuring apparatus embodiment protecting cover and handle planimetric map
Wherein:
1, controller; 2, handle; 3, roller; 4, display; 5, supervisory keyboard; 6, permanent magnet; 7, protecting cover; 8, bearing; 9-1, first tongue tube; 9-2, second tongue tube; 10, lead-in wire
(5) embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail:
As shown in Figures 1 to 3, this electronic digital display wheeled type distance measuring apparatus comprises controller 1, Foldable handle 2, and roller 3, and controller 1 comprises microprocessor and the display 4 that is attached thereto, supervisory keyboard 5.Microprocessor can be single-chip microcomputer.Display 4 is the super large LCD.The preservation button that " begin, stop, suspending " key and length numerical value are arranged on the supervisory keyboard 5 has unit conversion, zero clearing button, and area and volume calculation button are arranged.Roller 3 wheel face faces evenly are installed with 10 block permanent magnets 6, and it is on the circumference in the center of circle that permanent magnet is positioned at the wheel shaft.Handle 2 is a Foldable handle, the affixed controller 1 in the top of handle 2, and the protecting cover 7 of bottom and roller is affixed.Protecting cover 7 is installed on the wheel shaft of roller by bearing 8.The inner face of protecting cover is the identical cambered surface of circumference radian that forms with magnet, the protecting cover inner face is circumferentially being fixed the first tongue tube 9-1 and the second tongue tube 9-2 with permanent magnet correspondence position edge, and the lead-in wire 10 of tongue tube 9-1,9-2 is connected to the microprocessor of controller 1 by the endoporus of handle 1.
In the microprocessor of controller 1 time set is installed, can be on display 4 read clock or range finding time.
Temperature sensor and/or humidity sensor also are installed on the handle 2, and sensor is connected with the microprocessor of controller 1, display environment temperature and/or humidity on display 4.
Also store the calculation procedure of measuring distance between two walls in the microprocessor, press the correspondent button on the supervisory keyboard, microprocessor shows that with the automatic and roller diameter addition from the A wall to B length that wall is surveyed of this stadimeter this result also can store and be used for area and volume calculation on display 4.
Claims (8)
1. an electronic digital display wheeled type distance measuring apparatus comprises handle (2), roller (3), is evenly distributed with n block permanent magnet (6) on the wheel face of roller (3), n=6～16, and it is on the circumference in the center of circle that permanent magnet (6) is positioned at the wheel shaft, it is characterized in that:
The bottom of handle (2) and protecting cover (7) Joint, protecting cover (7) is by the wheel shaft of Bearing Installation in roller (3), the inner face of protecting cover (7) is the identical cambered surface of circumference radian that forms with permanent magnet (6), protecting cover (7) inner face with the fixing tongue tube (9) of permanent magnet (6) correspondence position, also comprise the controller (1) that is installed on handle (2) top, this controller (1) is microprocessor and display (4) that is attached thereto and supervisory keyboard (5), and the lead-in wire of tongue tube (9) is connected to the microprocessor of controller (1) by handle (2) central bore.
2. electronic digital display wheeled type distance measuring apparatus according to claim 1 is characterized in that:
Described protecting cover (7) inner face is circumferentially being fixed first tongue tube (9-1) and second tongue tube (9-2) with permanent magnet correspondence position edge, and the normally opened contact of two tongue tubes (9-1,9-2) is received two input ports of microprocessor respectively.
3. electronic digital display wheeled type distance measuring apparatus according to claim 1 and 2 is characterized in that:
Described handle (2) is a Foldable handle.
4. electronic digital display wheeled type distance measuring apparatus according to claim 1 and 2 is characterized in that:
In the microprocessor of described controller (1) storer is arranged, in it storage the length result that surveys and length, area, volume unit scaled value.
5. electronic digital display wheeled type distance measuring apparatus according to claim 1 and 2 is characterized in that:
In the microprocessor of controller (1) time set is installed.
6. electronic digital display wheeled type distance measuring apparatus according to claim 1 and 2 is characterized in that:
Described handle is equipped with temperature sensor and/or humidity sensor on (2), and temperature sensor and/or humidity sensor are connected with the microprocessor of controller (1).
7. electronic digital display wheeled type distance measuring apparatus according to claim 1 and 2 is characterized in that:
Described display (4) is a LCD.
8. electronic digital display wheeled type distance measuring apparatus according to claim 7 is characterized in that:
Described LCD is equipped with lamp, and the on ﹠ off switch of this lamp is arranged on the supervisory keyboard (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200786096U CN201025441Y (en) | 2007-02-13 | 2007-02-13 | Electronic digital display wheel range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200786096U CN201025441Y (en) | 2007-02-13 | 2007-02-13 | Electronic digital display wheel range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025441Y true CN201025441Y (en) | 2008-02-20 |
Family
ID=39099300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200786096U Expired - Fee Related CN201025441Y (en) | 2007-02-13 | 2007-02-13 | Electronic digital display wheel range finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025441Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995574A (en) * | 2012-12-21 | 2013-03-27 | 永康市兴源工贸有限公司 | Warning board with distance measuring equipment |
| CN103148773A (en) * | 2013-02-06 | 2013-06-12 | 宁波中博电器有限公司 | Low-cost high-precision wheel type distance meter |
| CN104634222A (en) * | 2015-02-16 | 2015-05-20 | 上海诺司纬光电仪器有限公司 | Distance-measuring system and distance-measuring method |
| CN105258663A (en) * | 2015-11-18 | 2016-01-20 | 国家电网公司 | Cable distance measuring instrument |
| CN106813639A (en) * | 2015-11-27 | 2017-06-09 | 美国西北仪器公司 | Multifunctional distance wheel |
| CN113252064A (en) * | 2021-05-14 | 2021-08-13 | 代星宇 | Civil engineering uses on-spot range unit |
-
2007
- 2007-02-13 CN CNU2007200786096U patent/CN201025441Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995574A (en) * | 2012-12-21 | 2013-03-27 | 永康市兴源工贸有限公司 | Warning board with distance measuring equipment |
| CN102995574B (en) * | 2012-12-21 | 2015-02-25 | 永康市兴源工贸有限公司 | Warning board with distance measuring equipment |
| CN103148773A (en) * | 2013-02-06 | 2013-06-12 | 宁波中博电器有限公司 | Low-cost high-precision wheel type distance meter |
| CN103148773B (en) * | 2013-02-06 | 2015-06-17 | 宁波中博电器有限公司 | Low-cost high-precision wheel type distance meter |
| CN104634222A (en) * | 2015-02-16 | 2015-05-20 | 上海诺司纬光电仪器有限公司 | Distance-measuring system and distance-measuring method |
| CN113607145A (en) * | 2015-02-16 | 2021-11-05 | 上海诺司纬光电仪器有限公司 | Distance measuring system and distance measuring method |
| CN105258663A (en) * | 2015-11-18 | 2016-01-20 | 国家电网公司 | Cable distance measuring instrument |
| CN106813639A (en) * | 2015-11-27 | 2017-06-09 | 美国西北仪器公司 | Multifunctional distance wheel |
| CN113252064A (en) * | 2021-05-14 | 2021-08-13 | 代星宇 | Civil engineering uses on-spot range unit |
| CN113252064B (en) * | 2021-05-14 | 2023-11-03 | 义乌市子鱼创意设计有限公司 | On-site distance measuring device for civil engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100213 |