FR2245031A1 - Remote radio control system for cranes - inhibit circuits prevent simultaneous transmission of conflicting orders - Google Patents

Remote radio control system for cranes - inhibit circuits prevent simultaneous transmission of conflicting orders

Info

Publication number
FR2245031A1
FR2245031A1 FR7333778A FR7333778A FR2245031A1 FR 2245031 A1 FR2245031 A1 FR 2245031A1 FR 7333778 A FR7333778 A FR 7333778A FR 7333778 A FR7333778 A FR 7333778A FR 2245031 A1 FR2245031 A1 FR 2245031A1
Authority
FR
France
Prior art keywords
orders
cranes
control system
emitter
remote radio
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.)
Granted
Application number
FR7333778A
Other languages
French (fr)
Other versions
FR2245031B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INST NAL RECH PREV ACCIDEN
Original Assignee
INST NAL RECH PREV ACCIDEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by INST NAL RECH PREV ACCIDEN filed Critical INST NAL RECH PREV ACCIDEN
Priority to FR7333778A priority Critical patent/FR2245031A1/en
Publication of FR2245031A1 publication Critical patent/FR2245031A1/en
Application granted granted Critical
Publication of FR2245031B1 publication Critical patent/FR2245031B1/fr
Granted legal-status Critical Current

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
    • B66C13/22—Control systems or devices for electric drives
    • B66C13/23—Circuits for controlling the lowering of the load
    • B66C13/24—Circuits for controlling the lowering of the load by dc motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Selective Calling Equipment (AREA)

Abstract

The emitter for the radio transmissions representing orders defining the required movement or mode of operation of the crane may be carried by a standing operator with the receiver unit located in the cabin of the crane. The emitter comprises a control unit (1), for defining the orders connected to a code signal generator (2) for frequency modulating the radio waves from a wave source (3). The receiver unit has a receiver circuit (4) connected to a signal decoder (5) in turn connected to a visual display (6) and to a transducer (7) converting the orders into an audio output. The emitter control unit (1) has selectively actuated contacts connected to a logic gating circuit inhibiting conflicting orders from being simultaneously transmitted.
FR7333778A 1973-09-20 1973-09-20 Remote radio control system for cranes - inhibit circuits prevent simultaneous transmission of conflicting orders Granted FR2245031A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7333778A FR2245031A1 (en) 1973-09-20 1973-09-20 Remote radio control system for cranes - inhibit circuits prevent simultaneous transmission of conflicting orders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7333778A FR2245031A1 (en) 1973-09-20 1973-09-20 Remote radio control system for cranes - inhibit circuits prevent simultaneous transmission of conflicting orders

Publications (2)

Publication Number Publication Date
FR2245031A1 true FR2245031A1 (en) 1975-04-18
FR2245031B1 FR2245031B1 (en) 1976-11-19

Family

ID=9125323

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7333778A Granted FR2245031A1 (en) 1973-09-20 1973-09-20 Remote radio control system for cranes - inhibit circuits prevent simultaneous transmission of conflicting orders

Country Status (1)

Country Link
FR (1) FR2245031A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116006876A (en) * 2022-12-27 2023-04-25 江苏卫华海洋重工有限公司 Automatic mechanical arm for detecting state of crane port machine through mechanism operation sound

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106097613A (en) * 2016-08-22 2016-11-09 辽宁利达自动化设备制造有限公司 A kind of rudder order telegraph

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116006876A (en) * 2022-12-27 2023-04-25 江苏卫华海洋重工有限公司 Automatic mechanical arm for detecting state of crane port machine through mechanism operation sound
CN116006876B (en) * 2022-12-27 2023-09-08 江苏卫华海洋重工有限公司 Automatic mechanical arm for detecting state of crane port machine through mechanism operation sound

Also Published As

Publication number Publication date
FR2245031B1 (en) 1976-11-19

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Legal Events

Date Code Title Description
ST Notification of lapse