JPS57168112A - Position detecting system of moving body by induction radio - Google Patents
Position detecting system of moving body by induction radioInfo
- Publication number
- JPS57168112A JPS57168112A JP12861381A JP12861381A JPS57168112A JP S57168112 A JPS57168112 A JP S57168112A JP 12861381 A JP12861381 A JP 12861381A JP 12861381 A JP12861381 A JP 12861381A JP S57168112 A JPS57168112 A JP S57168112A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- moving body
- crossing
- high frequency
- frequency signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/46—Position indicators for suspended loads or for crane elements
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE:To detect the position of the moving body continuously from the ground even though the moving body moves over a long distance, by detecting the position of the moving body which moves on a constant running path of a ceiling crane and the like by the induction radio. CONSTITUTION:A pair of crossed wire linesIare formed by crossing two pieces of conducting wires periodically along the moving body running path, M pairs of crossed wire line groups II are formed by crossing the wire at the same period as that of the wire linesIand arranged so that the crossing distance of every 1/(M-1) is shifted with respect to the wire lineI. The variation in the magnetic field or the electric field generated by the antenna 8 on the moving body 7 is received by the wire linesIandII. The high frequency signal is synthesized by giving the phase difference of pi/2 when M=1 and (2pi/M)i(i=1...M-1) when M=2. The phase of said synthesized high frequency signal is compared with that of the received high frequency signal of either of said wire linesIor II. The voltage or current which is proportional to the phase difference is taken out, and the distance from the crossing parts of the wire linesIor II are continuously detected from the ground. The position of the moving body is continuously detected from the address data detected on the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12861381A JPS57168112A (en) | 1981-08-17 | 1981-08-17 | Position detecting system of moving body by induction radio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12861381A JPS57168112A (en) | 1981-08-17 | 1981-08-17 | Position detecting system of moving body by induction radio |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52024579A Division JPS5855460B2 (en) | 1977-03-07 | 1977-03-07 | Mobile object position detection method using guided radio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57168112A true JPS57168112A (en) | 1982-10-16 |
Family
ID=14989111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12861381A Pending JPS57168112A (en) | 1981-08-17 | 1981-08-17 | Position detecting system of moving body by induction radio |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57168112A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4961809A (en) * | 1972-10-17 | 1974-06-15 |
-
1981
- 1981-08-17 JP JP12861381A patent/JPS57168112A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4961809A (en) * | 1972-10-17 | 1974-06-15 |
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