EP0195665B1 - Fernsteuersystem - Google Patents

Fernsteuersystem Download PDF

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Publication number
EP0195665B1
EP0195665B1 EP86302030A EP86302030A EP0195665B1 EP 0195665 B1 EP0195665 B1 EP 0195665B1 EP 86302030 A EP86302030 A EP 86302030A EP 86302030 A EP86302030 A EP 86302030A EP 0195665 B1 EP0195665 B1 EP 0195665B1
Authority
EP
European Patent Office
Prior art keywords
signal
function
control signal
received
transmitted
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.)
Expired - Lifetime
Application number
EP86302030A
Other languages
English (en)
French (fr)
Other versions
EP0195665A3 (en
EP0195665A2 (de
Inventor
Martin Robert Von Lintzgy
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.)
TELEMOTIVE U.K. LIMITED
Original Assignee
Telemotive (UK) Ltd
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 Telemotive (UK) Ltd filed Critical Telemotive (UK) Ltd
Priority to AT86302030T priority Critical patent/ATE68902T1/de
Publication of EP0195665A2 publication Critical patent/EP0195665A2/de
Publication of EP0195665A3 publication Critical patent/EP0195665A3/en
Application granted granted Critical
Publication of EP0195665B1 publication Critical patent/EP0195665B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements

Definitions

  • the present invention relates to a remote control system, and in particular, although not exclusively to an infra-red remote control device for industrial machinery.
  • JP-A-5521655 shows one known system for remote control of a device in response to a transmitted control signal in which the device is deactivated when a transmitted control signal does not continue to be received, but is maintained if the transmitted signal is received before the end of a "time-out" period.
  • a simple control scheme of this kind is not, however, sufficiently safe for use with heavy machinery.
  • a system for remotely controlling operation of a device having a plurality of controlled functions comprising: a transmitter unit including means for producing a control signal when the system is being operated, said transmitter means having means for intermittently and continually transmitting the control signal, and a receiver unit including means for receiving the transmitted signal, and operation control means responsive to the received signal for initiating operating of the device and maintaining operation of the device provided the transmitting control signal continues to be received, said operation control means having timer means for producing an output to maintain operation of the device provided the transmitted control signal is received within a timing period of the timer means, characterised in that said operation control means comprises: main contactor means for enabling operation of the device, and respective subsidiary contactor means for enabling individual controlled functions of the controlled device, whereby, when the control signal is not received the subsidiary contactor means of the currently controlled function is immediately de-energised, and the main contactor means is also de-energised if the control signal is not received again by the end of said timing period.
  • the control signal is transmitted several
  • the remote control system can control a number of functions of the controlled device, by the transmitter unit including means for transmitting function codes corresponding to the desired control function, and the receiver unit includes decoding means for decoding the transmitted function codes and control means controlling the required function in response to the output of the decoder means.
  • a transmitted function code can serve as the control signal to main overall operation of the device. So the control signal can be constituted by a first signal transmitted while no function is selected, and a function code signal when a function is selected.
  • the system preferably has a number of code transmitter means the outputs of which are multiplexed, and the receiver has a corresponding number of decoders each responsive to the code signals from a particular one of the code transmitter means.
  • a transmitter unit has a start switch 1 connected to a "SET LATCH” input of a “D” type flip-flop 2.
  • the start switch 1 is also connected to a "TRIGGER” input of an auto-stop timer 3 which has an output connected to an "UNLATCH” input of "D” type flip-flop 2.
  • the "D" type flip-flop 2 has output connected to a first input of an AND gate 4.
  • switches 5 on a key pad are connected to a first pulse generator 6 and a second pulse generator 7, and also to a pulse generator select logic and multiplexer 8.
  • the pulse generator select logic and multiplexer 8 has enable outputs PG1 and PG2 connected to the first pulse generator 6 and the second pulse generator 7, respectively.
  • the second pulse generator 7 has a synchronisation output connected to a corresponding input of the first pulse generator 6.
  • the function switches 5 are also connected to inputs of a NOR gate 9, the output of which is connected to a second input of AND gate 4 and RE-TRIGGER input of auto-stop timer 3.
  • the pulse generators 6 and 7 have outputs connected to inputs of an adder/output stage 10. Output of adder/output stage 10 is connected to infra-red LEDs 11.
  • a stop switch 12 is connected to the UNLATCH input of "D" type flip-flop 2, and an input to pulse generator 6.
  • a receiver unit has an I.R. sensor/preamp stage 20 with an output connected to a first decoder 21 and a second decoder 22.
  • the decoders 21 and 22 have outputs connected to a mixer and output stage 23, which in turn has outputs connected to relays 24 for controlling motor functions.
  • the first decoder 21 has an IDENT pulse output connected to an input of a 2-second timer 25.
  • An output of 2-second timer 25 is connected to a first input of an AND gate 26.
  • An output from a feed back control system of the crane (HIGH when motors running) is connected to a second input of AND gate 26.
  • An output of AND gate 26 is connected to an input of D-type latch 27, which has auto-reset input which operates at switch-on.
  • a Q output of latch 27 is connected to a fault warning light 31 and a Q output is connected to output relays 24 as an enable.
  • a "START" output of decoder 21 is connected to a "LATCH" input of a latch 28, and a “STOP" output of decoder 21 is connected to an "UNLATCH” input of latch 28.
  • An output of latch 28 is connected to one input of AND gate 32.
  • the output of AND gate 32 is connected to a TRIGGER input of a 1-second timer 29.
  • the timer 29 also has input connected to the "STOP" ouput of the decoder 21.
  • An output of timer 29 is connected to "START" relay (main contactor) 30.
  • the IDENT output of the first decoder 21 is connected to a second input of AND gate 32.
  • the system operates as follows: a user switches on the transmitter by means of the key operated start switch 1.
  • the transmitter transmits an infra-red signal which is picked up by the receiver mounted on the crane.
  • the receiver decodes the signal and starts the crane by engaging the main contactor 30.
  • the user then operates one of the function selection switches 5 and the transmitter sends the appropriate control signal which is decoded by the receiver and the selected part of the crane is operated.
  • the "D" type flip-flop 2 When the start switch 1 is closed by operation of the key switch, the "D" type flip-flop 2 is triggered and the latched output of "D" type flip-flop 2 is applied to the first pulse code generator 6 through AND gate 4 as a START signal.
  • the other input to AND gate 4 from NOR gate 9 is HIGH because the inputs to NOR gate 9 are low, no function being selected.
  • the pulse generator produces a signal which is sent via the output stage 10 to I.R. LEDs 11 and the transmitted signal is received by I.R. sensor 20 of the receiver.
  • the first decoder 21 receives the output of preamp 20 and supplies a START signal to latch 28. Timer 29 is triggered, which in turn operates the "START" relay or main contactor. The START signal is then sent repeatedly from the transmitter to maintain the contactor engaged.
  • the first decoder 21 responds to the output of preamp 20 and the provides a "START" output to latch latch 28. A high level is thus provided to one input of AND gate 32.
  • the decoder 21 also produces an IDENT pulse each time a valid command signal is received (approx. every 130 ms.). This command signal may either be the START signal re-transmitted or a function signal.
  • the IDENT signal is provided to AND gate 32 and thence to a TRIGGER input of 1 second timer 29. As long as the 1 second time 29 remains retriggered by the IDENT signal an output will be provided to engage START relay (main contactor ) 30.
  • the time period between IDENT signals is of the order of one-eighth of the period of timer 29. This allows for the I.R. link to be momentarily broken without interrupting the main contactor. If the operator moves out of range, for example, for more than the one second period of timer 29, the main contactor will be denergised. However, when the operator moves back into range, the contactor will be re-energised.
  • the function signal received by the receiver is decoded in the first decoder 21 which provides an appropriate output to mixer and output stage 23 to operate one of the 14 function controlling relays 24, to carry out the selected operation.
  • the first and second pulse generators 6 and 7 each produces a distinct code which can only be recognised by the respective of the decoders 21,22 in the receiver. So, a transmitted signal originating from the first pulse generator (code 1) 6 can only be decoded by the first decoder 21, and similarly the output from pulse generator 7 can only be decoded by decoder 22.
  • the pulse generators each respond to one of the input functions. The two functions are ordered in priority by select logic 8, and the function of higher priority is assigned to the first pulse generator 6 and the lower priority function is assigned to the second pulse generator 7, by the select logic enabling the appropriate pulse generator to respond to the appropriate function switch signal.
  • the outputs of pulse generators 6,7 are multiplexed, and the adder stage 10 provides a composite signal in which the two coded signals remain separate. The output stage 10 produces large current pulse in transmitting diode 11 away.
  • decoders 21 and 22 When the multiplexed signal is received the decoders 21 and 22 respond to one or other of the coded signals. Thus, decoder 21 will respond to the code 1 part of the received signal and decoder 22 will respond to the code 2 part of the received signal. Each decoder 21, 22 will send an appropriate control output signal to mixer and output stage 23.
  • the system also includes a time-out or auto-stop feature. Unless the auto-stop timer (3) receives a retrigger input within the allotted time period, e.g. 10 minutes, a "STOP" signal is sent to pulse generator 6 and an UNLATCH signal is sent to "D" type flip-flop 2.
  • the retrigger input of auto-stop timer (3) is connected to receive the output of NOR gate 9, so that the timer will be retriggerd if one of function select switches 5 is operated providing an input to NOR gate 9.
  • the crane can be stopped at the end of operation by the stop switch 12. That switch provides a STOP signal to the pulse generator 6 which in turn sends the STOP signal to the receiver.
  • the decoder 21 receives the STOP signal and passes the signal on to the latch 28 which is unlatched, and consequently the AND gate 32 is blocked.
  • the timer 29 is not retriggered and the main contactor/START relay 30 will be opened. Further the STOP signal from decoder 21 is sent directly to timer 29 to overide the timer operation to give a rapid stop response.
  • the receiver includes error detection circuitry in which a signal is picked up by means of an opto-sensor in the motor operating contactor circuit, which signal is "HIGH” whilst any contactor is energised. This signal is supplied to one input of AND gate 26 which receives the output of timer 25. Ident signals are used to maintain timer 25 in a triggered condition.

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

Claims (6)

  1. System für den Fernsteuerbetrieb eines Geräts, das eine Mehrzahl gesteuerter Funktionen hat, mit einer Sendereinrichtung mit Mitteln zur Erzeugung eines Steuersignals, wenn das System in Betrieb ist, wobei die genannten Mittel des Senders Mittel (6-8) zur intermittierenden und kontinuierlichen Aussendung des Steuersignals aufweisen, einer Empfängereinrichtung mit Mitteln für dem Empfang des ausgesandten Signals, und auf das empfangene Signal ansprechende Betriebssteuereinrichtungen (28,29,30) zum Ingangsetzen des Betriebs des Geräts und zur Aufrechterhaltung des Betriebs des Geräts unter der Voraussetzung, daß das ausgesandte Steuersignal fortgesetzt empfangen wird, wobei die Betriebssteuereinrichtungen Zeitgeber haben zur Erzeugung einer Ausgangsgröße zur Aufrechterhaltung des Betriebs unter der Voraussetzung, daß das ausgesandte Steuersignal in einer Zeitperiode des Zeitgebers empfangen wird, dadurch gekennzeichnet, daß die Betriebssteuereinrichtungen
       einen Hauptkontaktgeber (30) zur Freigabe des Betriebs des Geräts und verschiedene Hilfskontaktgeber (24) zur Freigabe einzelner Steuerfunktionen des gesteuerten Geräts umfassen, wodurch bei fehlendem Empfang des Steuersignals der Hilfskontaktgeber (24) der augenblicklich gesteuerten Funktion sofort ausgeschaltet wird und der Hauptkontaktgeber (30) ebenfalls ausgeschaltet wird, wenn das Steuersignal bis zum Ende der genannten Zeitperiode nicht wieder empfangen wird.
  2. System nach Anspruch 1, bei dem die gesteuerte Funktion wenigstens einen Motorantrieb umfaßt.
  3. System für den Fernsteuerbetrieb eines Geräts nach Anspruch 1 oder Anspruch 2, bei dem die Sendereinrichtung das intermittierende Steuersignal innerhalb der Periode des Zeitgebers mehrfach aussendet.
  4. System für den Fernsteuerbetrieb eines Geräts nach Anspruch 1, 2 oder 3, bei dem die Sendereinrichtung Mittel zur Erzeugung von auszusenden Funktionskodes umfaßt, die den gewünschten zu steuernden Funktionen des Geräts entsprechen, die Empfängereinrichtung Dekodermittel zur Dekodierung empfangener Funktionskodes umfaßt und die Betriebssteuereinrichtungen Mittel zur Erzeugung eines Funktionssteuersignals für das Geräts in Ansprechung auf die dekodierten Funktionskodes haben.
  5. System für den Fernsteuerbetrieb eines Geräts nach Anspruch 4, bei dem das Steuersignal zur Aufrechterhaltung des Betriebs des Geräts durch einen Funktionskode gebildet werden kann, so daß der Betrieb des Geräts aufrechterhalten wird unter der Voraussetzung, daß ein Funktionskode empfangen wird, oder bei Abwesenheit eines Funktionskode unter der Voraussetzung, daß ein von der Sendereinrichtung ausgesandtes Betriebsaufrechterhaltungssignal empfangen wird.
  6. System für den Fernsteuerbetrieb eines Geräts nach Anspruch 4 oder 5, bei dem die Sendereinrichtung Mittel zur Erzeugung von zwei Funktionskodes und zur Bildung eines die beiden Funktionskodes umfassenden, zu übertragenden Mischsignals umfaßt und die Empfängereinrichtung Mittel zur Trennung des ausgesandten Signals zur Freigabe der zwei Funktionskodes für die Dekodierung durch die Dekodiermittel ausweist.
EP86302030A 1985-03-19 1986-03-19 Fernsteuersystem Expired - Lifetime EP0195665B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86302030T ATE68902T1 (de) 1985-03-19 1986-03-19 Fernsteuersystem.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858507068A GB8507068D0 (en) 1985-03-19 1985-03-19 Remote control system
GB8507068 1985-03-19

Publications (3)

Publication Number Publication Date
EP0195665A2 EP0195665A2 (de) 1986-09-24
EP0195665A3 EP0195665A3 (en) 1988-06-01
EP0195665B1 true EP0195665B1 (de) 1991-10-23

Family

ID=10576230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302030A Expired - Lifetime EP0195665B1 (de) 1985-03-19 1986-03-19 Fernsteuersystem

Country Status (6)

Country Link
EP (1) EP0195665B1 (de)
AT (1) ATE68902T1 (de)
AU (1) AU597244B2 (de)
DE (1) DE3682090D1 (de)
GB (1) GB8507068D0 (de)
ZA (1) ZA862034B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004033A1 (en) * 1987-10-19 1989-05-05 Nauchno-Proizvodstvennoe Obiedinenie Po Sozdaniju System for transmitting and receiving remote-control signals
GB8800411D0 (en) * 1988-01-08 1988-02-10 Solro Ltd Improvements in/relating to remote control apparatus
US5200745A (en) * 1989-10-09 1993-04-06 Nissan Motor Company, Limited System and method for communicating data between control unit and master station applicable to automotive vehicle
DE4111736C1 (de) * 1991-04-08 1992-08-27 Mannesmann Ag, 4000 Duesseldorf, De
FR2725295B1 (fr) * 1994-09-29 1996-11-08 Valeo Electronique Sirene d'alarme pour centrale d'alarme de vehicule et centrale d'alarme de vehicule comportant une telle sirene
SE9500389L (sv) * 1995-02-02 1996-08-03 Bror Erland Blom Förfarande och system för begränsning av räckvidd hos fjärrstyrsystem

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2191796A5 (de) * 1972-06-26 1974-02-01 Sagem
US4081608A (en) * 1976-12-17 1978-03-28 General Electric Company Arrangement for remote control apparatus
AU510770B2 (en) * 1978-01-19 1980-07-10 Asahi Tsusho K.K. Motor driving system for remote controlled mobile toys
JPS5521655A (en) * 1978-08-02 1980-02-15 Nec Corp Remote control system
US4348671A (en) * 1980-11-28 1982-09-07 Texaco Inc. Dual spectra well logging system

Also Published As

Publication number Publication date
AU597244B2 (en) 1990-05-31
ZA862034B (en) 1986-11-26
ATE68902T1 (de) 1991-11-15
DE3682090D1 (de) 1991-11-28
GB8507068D0 (en) 1985-04-24
EP0195665A3 (en) 1988-06-01
AU5489386A (en) 1986-09-25
EP0195665A2 (de) 1986-09-24

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