GB2077555A - Electronic tally apparatus - Google Patents

Electronic tally apparatus Download PDF

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Publication number
GB2077555A
GB2077555A GB8017252A GB8017252A GB2077555A GB 2077555 A GB2077555 A GB 2077555A GB 8017252 A GB8017252 A GB 8017252A GB 8017252 A GB8017252 A GB 8017252A GB 2077555 A GB2077555 A GB 2077555A
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Prior art keywords
interrogation
transponder
signal
means
apparatus
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Withdrawn
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GB8017252A
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STC PLC
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STC PLC
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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10029Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • G06K7/10039Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/04Indicating or recording train identities
    • B61L25/043Indicating or recording train identities using inductive tags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/04Indicating or recording train identities
    • B61L25/045Indicating or recording train identities using reradiating tags
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/002Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F17C13/003Means for coding or identifying them and/or their contents
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G01S13/758Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator powered by the interrogation signal
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual entry or exit registers
    • G07C9/00007Access-control involving the use of a pass
    • G07C9/00111Access-control involving the use of a pass the pass performing a presence indicating function, e.g. identification tag or transponder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • F17C2201/0109Shape cylindrical with exteriorly curved end-piece
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03Orientation
    • F17C2201/032Orientation with substantially vertical main axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03Orientation
    • F17C2201/035Orientation with substantially horizontal main axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01Mounting arrangements
    • F17C2205/0123Mounting arrangements characterised by number of vessels
    • F17C2205/013Two or more vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/05Vessel or content identifications, e.g. labels
    • F17C2205/058Vessel or content identifications, e.g. labels by Radio Frequency Identification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/011Oxygen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/014Nitrogen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0165Applications for fluid transport or storage on the road
    • F17C2270/0168Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0171Trucks

Abstract

An electronic tallying apparatus in which a radio frequency transmitter (10) broadcasts an interrogation signal comprising a sequence of equally spaced r.f. pulses. Transponders (12) receiving the interrogation pulses count (17) said pulses and when the count reaches a value unique to a transponder the transponder emits a response pulse. In the interrogating apparatus a counter (18) is started and counts in synchronism with the interrogation pulses. When each response pulse is received from a transponder a gate (19) is opened, allowing the count reached at that time to be stored in a buffer (20) prior to being decoded (21) into an identity corresponding to that of the transponder. The identities of all transponders responding to an interrogation signal can then be printed out (22). <IMAGE>

Description

SPECIFICATION Electronic tally apparatus This invention relates to an electronic tallying apparatus for keeping a tally of goods etc., especially where re-usable items are required to be checked into and out of a warehouse or a factory. Atypical application is in tally keeping of gas cylinders. For example the job requirements may be as follows: Firstly, the number of cylinders available for despatch from the depot, and a detailed description of their contents, should be known at all times. Sec ondly, each outgoing consignment should be simi larly monitored, preferably while on the carrying vehicle and at the moment of departure from the depot. The ability to interrogate the outgoing con signment as it leaves the premises would be a valu able precaution against despatch error or pilferage.

By the same mechanism, incoming empties would be monitored on the vehicles as it entered the depot, to be credited to the inventory of cylinders awaiting recharge. With all this information immediately available, the recharging programme could be con stantly updated to meet the pattern of outstanding orders.

It is assumed that current practice does not require the specific identification of individual cylinders except by the nature of their contents, on the basis that one cylinder of oxygen is as good as another.

Hence, even though each cylinder might bear a uni que reference number, it would appear two be expe dient to handle them merely on the basis of the con tents colour code. However, once a cylinder has been address-labelled in response to a specific order it acquires a specific identity which modifies its sub sequent handling. There can be little doubtthat los ses and inventory errors are most likely to occur while cylinders are passing through their phase of non-specific identity.It is well established in military and other circles that a positive roll-call system is more accurate and conclusive than a simple head count, it follows that the most secure inventory con trol would be achieved by identifying each individual cylinder by its unique reference number throughout its handling history, using the same detailed accounting procedure at all stages. Thus, against any given reference number would be recorded cylinder capacity, empty or full, nature of contents, whether held in depot, from whom returned orto whom despatched, the status record being con stantly updated.

Implemented by human operatives, such a proce dure could become prohibitively complicated and time-consuming, not least because of the very large reference numbers involved in a nation-wide ser vice. However, given an automatic means for inter rogation at each handling stage, the relevant data could be processed expeditiously by conventional electroniccomputertechniques, appropriate print outs being made available to accountants, invoicing staff, loaders, delivery drivers, security guards and others as required. Such a procedure would impose no additional burden on the loading staff, who, in response to a print-out requiring the loading of, say, ten nitrogen cylinders, could still take these at random regardless of reference number, the actual numbers being recorded by the computer at the moment of departure.

Any given gas cylinder, having no distinctive feature to separate it from other cylinders, must necessarily be 'tagged' in some way to give it a unique identity. The broad system of colour coding, made possible by the relatively limited variety of contained gases, must therefore be supplemented by a further code, capable of perhaps a million or more alternatives. For the visual observer, this might take the form of an arrangement of symbols, letters or numbers, but these would be unsuitable for automatic interrogation, for which a binary presentation isto be preferred.Nevertheless, systems involving the use of patterns of optical or magnetic stripes, such as are currently in use for stock control in supermarkets, suffer the limitation that the sensing head must be passed in close proximity to the pattern in order to read it - an undesirable feature in the present context.

In view of the size and weight of the gas cylinders, it would be preferable that their identifying tags should be readable while the cylinders remain in their storage racks or on the transporting vehicle.

The undesirable manipulation of the sensing head, whether in position or orientation, would be eliminated by endowing the head with the ability to sense the tags over a distance of several feet, or even several yards. Implicit in this arrangement would be the need to ensure that each tag could be read sepa ratelywith a large number of other cylinders in close proximity.

According to the present invention there is provided an electronic tallying apparatus including a radio frequency transmitter arranged to broadcast an interrogation signal for reception by a plurality of transponder devices each of which is adapted to transmit a unique response signal, the apparatus also including radio frequency receiving means arranged to receive response signals from transponder devices responding to the interrogation signal, the apparatus further including means for translating said unique signals into corresponding identity signals.

The invention also provides a transponder device including radio frequency receiving means, means for generating a unique response signal in response to a signal received by the receiving means and radio-frequency transmitting means arranged to transmit said unique response signal.

In a preferred embodiment of the invention the tallying apparatus interrogation signal comprises a sequence of equally spaced radio frequency pulses.

Each transponder is arranged to count the number of pulses in the interrogation sequence and to emit a radio frequency pulse when a count unique to that transponder is reached. The tallying apparatus receiver includes a counter which generates a count corresponding to the interrogation pulses and means for putting out the count reached when the or each response signal is received. The counts so put out identify the responding transponders. Each transponder is permanently attached to one article, e.g. a gas cylinder.

Embodiments of the invention will now be described with reference to the accompanying drawings, in which: Fig. 1 illustrates the basic elements of an electronic tallying apparatus according to the invention, Fig. 2 illustrates an interrogation pulse sequence, Fig. 3 illustrates the attachment of transponders to gas cylinders, and Fig. 4 illustrates alternative methods of interrogating lorry loads of gas cylinders.

The tallying apparatus shown in Fig. 1 consists essentially of a transmitterlreceiver equipment working in conjunction with a plurality of transponders.

The transmitter 10, under the control of a control unit 11, transmits an interrogation signal which is received by a transponder 12. The reply signal from the transponder 12 is received by receiver 13, also operating underthe control of unit 11. The received signals are then processed by the remaining elements of Fig. 1 as will be described later.

Transmitter 10 is caused to broadcast an interrogation signal of the form shown in Fig. 2. The signal commences with a long radio frequency pulse a of say 50 milliseconds duration. This is followed by a train of one million short pulses at a frequency of 1 Mb/s. Such a signal can readily be transmitted on a carrier frequency of 1 GHz.

In the transponder 12 the received signals excite a tuned circuit Ic. The initial long pulse a is used to charge a power supply capacitor 14 via rectifying diode 15. At the same time the long pulse a acts as a trigger signal to set, via capacitor 16, a counter 17.

The counter 17 is preset with a count unique to the transponder and is decremented by the received train of short pulsesb, also via the capacitor 16.

When the counter 17 reaches a count of zero a short reply pulses' is transmitted via a second tuned cir cuit%' at a second, different carrier frequency, say 1.1 GHz. The power for the counter 17 and the energising of the second tuned circuit is derived from capacitor 14.

the receiver 13 is disabled by control unit 11 during transmission of the long pulse a from transmitter 10. During the transmission of the pulses b receiver 13 is operative and will receive any pulses transmitted from transponders within interrogation range. Meanwhile a counter 18 is started and is incremented by a reference train of short pulses b " from control unit 11. The output of counter 18 is applied to a gate 19 which is only opened for one pulse period each time a reply pulses' is received by receiver 13. In this way a binary bit pattern is generated with, say, binary 'l's occurring only when a reply pulse is received, the remainder of the pattern being binary '0's. Each binary '1' can be directly translated in terms of a count number into an identity for a transponder.The binary bit pattern is stored in a buffer 20, from whence it can be transferred at a low rate to a decoder 21 which relates each bit to a transponder identity and feeds this identity to a printer 22.

Thus the whole interrogation sequence can be completed in little more than 1 second, although the print-out maytake an appreciably longer period. To negate the effect of possible spurious responses it is practicable to repeat the interrogation a number of times, say 6 times in 10 seconds, with 6 buffers 20 being used in turn When all 6 interrogations have been completed logic (not shown) can compare the successive interrogation results and determine whether there are any inconsistencies and provide an indication and/oralarm accordingly.

All the transponders are identical in every respect except their initial count setting This would be decided at the time of their original attachment to a cylinder, and can be adjusted in the following manner. The standard transpondercircuit card is provided with setting circuits for both states of each counter digit. Any desired identifying code can then be set up by disabling the setting circuit for the unwanted state of each digit, one effective method being to punch through the appropriate conductors on the circuit card. Then, at the moment of energisation, the remaining setting circuits would flip the whole counter to the desired identifying number prior to the count-down.

The construction of the transponders is of course to a large extent determined by the nature of the articles to which they are attached. For example, the shape, weight and ruggedness of typical gas cylinders give rise to handling techniques that could expose an externally-attached transponder to grave risk of damage. Nevertheless, external mounting becomes mandatory, since, not only would it be unacceptable to interfere with the normal construction and function of the cylinder, but the transponder antenna must be exposed with adequate electrical isolation from the cylinder body. A suitable form of construction and mounting might be as shown in Fig. 3a. The transponder would take the form of an annulus having a centre hole of a clearing size appropriate to the cylinder valve thread.The desired identifying code number having been set up during its initial assembly, the transponder would merely be placed over the cylinder neck and the valve screwed into place, serving alsoto lock the trans- ponder in position. Thereafter, the transponder would so remain throughout the life of the cylinder, requiring no further access or adjustment. A different design would be requiredforthose cylinders provided with a neck thread and a cast-iron protective cap, but here the transponder might be screwed on to the neck thread priorto fitting the cap as shown in Fix 36. It would, of course, be implicit that the fitting ofthe protective cap should not screen the transponder antenna.

In eithercasethetransponderwould lie closely to the upper neck of the cylinder in the vicinity of the valve region where caution is normally exercised during cylinder manipulation. Nor would it be possible to suffer damage should the cylinder simply roll or fall over. A rugged form of construction would nevertheless be adopted, capable of resisting the reasonable impact of spanners and the like. The overall size would be dictated primarily by the antenna design and by the bulkofthe protective housing, since the electronics proper would occupy a relatively modest space.

It is imperative that the transponder anetanna shall have radio-frequency access to the interrogator head, and shall not be subject to screening or shadowing by storage racks or other cylinders.

However, since it is envisaged that cylinders are normally stored and transported with their valve heads collectively presented either upwards or sideways, no insuperable problems are anticipated.

Fig. 4a shows a suitably mounted interrogator for a vehicle loaded with vertical cylinders. Horizontal loads, such as in Fig. 4b, might require supplementary interrogation heads to fill in any dead spots. A similar philosophy would be applied to the location of interrogation heads within a warehouse. The true requirements would be confirmed by the opportunity to perform propagation tests in an actual storage depot.

The monitoring facility offered by this invention might be confined merely to the checking of departing loads. Nevertheless, the detailed information so obtained, if correlated with the results of monitoring other stages in the processing cycle, could be made the basis of a comprehensive, direct-input, computer accounting procedure, with all the currentlyrecognised advantages of faster processing, additional data and freedom from human error.

The standardisation of size and shape of gas cylinders makes them excellent subjects for a completely automatic handling and loading system. An essential feature of such a system is that the travelling grab must be capable of recognising which cylinder it is to pick up. The present invention offers this facility, making it possible for the grab to operate in a 'search' mode until it received a response from the cylinder for which it was seeking. To this end, a short-range, one at a time interrogation method would be used. Alternatively, a returned cylinder, selected at random for an incoming vehicle, could be immediately identified and transferred to its correct recharging location.

Since the complete cycle need occupy no more than one second, it is practical to apply the method during the movement of individual cylinders. In this case, an interrogating antenna of deliberately limited range can be mounted on the crane or grab.

Whilst the invention has been primarily described in terms of identifying gas cylinders it is envisaged that it has practical applications in many other fields, notably those in which a large number of items are used in a short teem hire or rental mode. Cans, casks, clothing etc. are some possible applications. The invention also lends itself to security applications.

Personnel each equipped with a transponder can be interrogated automatically at the entrances to and exits from work areas, their identities recorded at appropriate times and access to secure areas being automatically controlled with the minimum of delay.

Claims (17)

1. An electronic tallying apparatus including a radio frequency transmitter arranged to broadcast an interrogation signal for reception by a plurality of transponder devices each of which is adapted to transmit a unique response signal, the apparatus also including radio frequency receiving means arranged to receive response signals from transponder devices responding to the interrogation signal, the apparatus further including means for translating said unique signals into corresponding identity signals.
2. Apparatus according to claim 1 wherein said transmitter and said receiving means are arranged to operate on different frequencies.
3. Apparatus according to claim 1 or 2 wherein the interrogation signal comprises a sequence of equally spaced radio frequency pulses.
4. Apparatus according to claim 3 including a counter which generates a count corresponding to the interrogation pulses and means for putting out the count received when the or each transponder response signal is received.
5. Apparatus according to claim 3 or 4 wherein the transmitter is arranged to precede each interrogation signal with a continuous radio frequency signal of predetermined duration longer than that of an interrogation pulse.
6. Apparatus according to claim 5 including means for disabling the receiving means during transmission of the continuous radio frequency signal preceding an interrogation signal.
7. Apparatus according to claim 4 including buffer means in which each count put out from the counter is temporarily stored and decoding means to which the stored counts are applied, the decoding means being arranged to translate each count so stored into a transponder identity.
8. Apparatus according to claim 7 including means for printing out the transponder identities as translated by the decoding means.
9. Apparatus according to any preceding claim including a plurality of storage means wherein the translated signals from a number of repeated interrogation signals are individually stored and logic means for comparing successive interrogation resu Its to determine whether there are any inconsistencies in said stored translated signals.
10. Apparatus according to claim 9 including means for indicating when inconsistencies occur in the translated signals derived from corresponding responses to succeeding interrogation signals.
11. An electronic tallying apparatus substantially as described with reference to the accompanying drawings.
12. Atransponder device for use with the apparatus as claimed in any preceding claim, the transponder device including radio frequency receiving means, means for generating a unique response signal in response to an interrogation signal received by the receiving means and radio frequency transmitting means arranged to transmit said unique response signal.
13. A device according to claim 12 including a counter arranged to count pulses in an interrogation signal, the transmitting means being arranged to emit a radio frequency pulse when a count unique to the device is reached.
14. A device according to claim 12 or 13 including a capacitor, means for charging the capacitor in response to a received continuous radio frequency signal of predetermined duration preceding an interrogation signal, said capacitor providing power for the device during receipt of the ensuing interrogation signal.
15. A device according to claim 12, 13 or 14 wherein the receiving means and the transmitting means are arranged to operate at different radio frequencies.
16. A device according to any one of claims 12 to 15 constructed in the form of an annulus.
17. A transponder device substantially as described with reference to the accompanying drawings.
GB8017252A 1980-05-27 1980-05-27 Electronic tally apparatus Withdrawn GB2077555A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (33)

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US4521676A (en) * 1982-09-30 1985-06-04 Aga Ab Encoded cap for a pressurized gas cylinder
US4582100A (en) * 1982-09-30 1986-04-15 Aga, A.B. Filling of acetylene cylinders
WO1987002165A1 (en) * 1985-09-27 1987-04-09 Raj Phani K Electronic remote chemical identification system
US4657055A (en) * 1982-09-30 1987-04-14 Aga Ab Filling of acetylene cylinders
EP0301127A1 (en) * 1987-07-31 1989-02-01 Texas Instruments Deutschland Gmbh Transponder arrangement
FR2629654A1 (en) * 1988-03-31 1989-10-06 Lewiner Jacques Enhancements to very low power battery portable electric devices
DE3912016C1 (en) * 1989-04-12 1990-10-25 Texas Instruments Deutschland Gmbh, 8050 Freising, De
WO1990013094A1 (en) * 1989-04-18 1990-11-01 Niessen Guenther System for remote sensing of distinguishing marks on objects
EP0399316A1 (en) * 1989-05-24 1990-11-28 KM- SCHMÖLE GmbH Handwheel for a gas cylinder valve
FR2685519A1 (en) * 1991-12-20 1993-06-25 Gemplus Card Int System for identification of containers including gas cylinders.
EP0553905A1 (en) * 1992-01-24 1993-08-04 Koninklijke PTT Nederland N.V. Method for exchanging information between a detection station and at least one tag in an identification/communication system, system for application of the method, and tag and detection station for use in the system, and method for identifying different tags by a detection station in the identification/communication system
EP0586083A2 (en) * 1992-07-31 1994-03-09 Hughes Microelectronics Europa Limited Collar transponder
EP0592224A1 (en) * 1992-10-07 1994-04-13 Westinghouse Electric Corporation Dual resonant antenna circuit for RF tags
WO1995015622A1 (en) * 1993-11-30 1995-06-08 Idesco Oy Remote-readable transponder arrangement
EP0662666A1 (en) * 1994-01-11 1995-07-12 Gemplus Card International Contactless object identification system, particularly metal objects
US5451959A (en) * 1988-07-08 1995-09-19 Texas Instruments Deutschland Gmbh Transponder arrangement
EP0672859A1 (en) * 1994-03-18 1995-09-20 Messer Griesheim Gmbh Device for holding electronic data carriers on gas cylinders
FR2719142A1 (en) * 1994-04-23 1995-10-27 Messer Griesheim Gmbh tanks identification system that can be read by machine, in particular for transport tanks of compressed gas cylinders.
EP0696778A1 (en) * 1994-08-10 1996-02-14 Gemplus S.C.A. Electronic tag and contactless object identification system, particularly for metal objects
WO1996009595A1 (en) * 1994-09-21 1996-03-28 Siemens Aktiengesellschaft Device for contactless, inductive energy and data transmission and preferred use thereof for identifying gas bottles
US5602538A (en) * 1994-07-27 1997-02-11 Texas Instruments Incorporated Apparatus and method for identifying multiple transponders
US5821525A (en) * 1994-08-03 1998-10-13 Mitsubishi Denki Kabushiki Kaisha Reader/writer for use with non-contact IC card and reader/writer system
US5821877A (en) * 1991-01-18 1998-10-13 Gemplus Card International System of communications between a post and moving bodies
US5866891A (en) * 1995-01-11 1999-02-02 Sony Chemicals Corp. Transmitter-receiver for non-contact IC card system
GB2335573A (en) * 1998-03-18 1999-09-22 Univ Singapore An RF transponder identification system and protocol
EP1011069A2 (en) * 1998-12-15 2000-06-21 Messer Griesheim Gmbh Device for holding electronic data carriers on gas cylinders
EP1054363A1 (en) * 1999-05-21 2000-11-22 Sudco S.A. Method and system for dispensing gas cylinders
EP0890928A3 (en) * 1997-07-10 2001-06-13 Sarnoff Corporation Transmission apparatus and remotely identifying an electronically coded article
US6696954B2 (en) 2000-10-16 2004-02-24 Amerasia International Technology, Inc. Antenna array for smart RFID tags
US6703935B1 (en) 2001-05-14 2004-03-09 Amerasia International Technology, Inc. Antenna arrangement for RFID smart tags
WO2009039869A1 (en) * 2007-09-24 2009-04-02 Jacques Valere Vandaele Device for recognizing authenticity of compressed refill bottles
EP2395488A1 (en) * 2004-05-07 2011-12-14 Sensormatic Electronics, LLC Method of assigning and deducing the location of articles detected by multiple RFID antennae
US8730044B2 (en) 2002-01-09 2014-05-20 Tyco Fire & Security Gmbh Method of assigning and deducing the location of articles detected by multiple RFID antennae

Cited By (48)

* Cited by examiner, † Cited by third party
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US4521676A (en) * 1982-09-30 1985-06-04 Aga Ab Encoded cap for a pressurized gas cylinder
US4582100A (en) * 1982-09-30 1986-04-15 Aga, A.B. Filling of acetylene cylinders
US4657055A (en) * 1982-09-30 1987-04-14 Aga Ab Filling of acetylene cylinders
WO1987002165A1 (en) * 1985-09-27 1987-04-09 Raj Phani K Electronic remote chemical identification system
EP0301127A1 (en) * 1987-07-31 1989-02-01 Texas Instruments Deutschland Gmbh Transponder arrangement
US5053774A (en) * 1987-07-31 1991-10-01 Texas Instruments Deutschland Gmbh Transponder arrangement
US5438335A (en) * 1987-07-31 1995-08-01 Texas Instruments Deutschland, Gmbh Responder unit for transponder arrangement
US5444448A (en) * 1987-07-31 1995-08-22 Texas Instruments Deutschland Gmbh Arrangement interrogation unit for transponder
FR2629654A1 (en) * 1988-03-31 1989-10-06 Lewiner Jacques Enhancements to very low power battery portable electric devices
US5451959A (en) * 1988-07-08 1995-09-19 Texas Instruments Deutschland Gmbh Transponder arrangement
DE3912016C1 (en) * 1989-04-12 1990-10-25 Texas Instruments Deutschland Gmbh, 8050 Freising, De
WO1990013094A1 (en) * 1989-04-18 1990-11-01 Niessen Guenther System for remote sensing of distinguishing marks on objects
EP0399316A1 (en) * 1989-05-24 1990-11-28 KM- SCHMÖLE GmbH Handwheel for a gas cylinder valve
US5821877A (en) * 1991-01-18 1998-10-13 Gemplus Card International System of communications between a post and moving bodies
US5539188A (en) * 1991-12-20 1996-07-23 Gemplus Card International System for the identification of containers, notably gas cylinders
FR2685519A1 (en) * 1991-12-20 1993-06-25 Gemplus Card Int System for identification of containers including gas cylinders.
WO1993013494A1 (en) * 1991-12-20 1993-07-08 Gemplus Card International Container identification system, particularly for gas cylinders
EP0553905A1 (en) * 1992-01-24 1993-08-04 Koninklijke PTT Nederland N.V. Method for exchanging information between a detection station and at least one tag in an identification/communication system, system for application of the method, and tag and detection station for use in the system, and method for identifying different tags by a detection station in the identification/communication system
EP0586083A3 (en) * 1992-07-31 1994-06-01 Hughes Microelectronics Europa Collar transponder
EP0586083A2 (en) * 1992-07-31 1994-03-09 Hughes Microelectronics Europa Limited Collar transponder
EP0592224A1 (en) * 1992-10-07 1994-04-13 Westinghouse Electric Corporation Dual resonant antenna circuit for RF tags
WO1995015622A1 (en) * 1993-11-30 1995-06-08 Idesco Oy Remote-readable transponder arrangement
FR2714988A1 (en) * 1994-01-11 1995-07-13 Gemplus Card Int A system for the contactless identification of objects, in particular metal objects.
EP0662666A1 (en) * 1994-01-11 1995-07-12 Gemplus Card International Contactless object identification system, particularly metal objects
US5583330A (en) * 1994-01-11 1996-12-10 Gemplus Card International Method and apparatus for the contact-free identification of articles having a protective enclosure, wherein the articles are identified using multiple electromagnetic wave transmission/reception devices
EP0672859A1 (en) * 1994-03-18 1995-09-20 Messer Griesheim Gmbh Device for holding electronic data carriers on gas cylinders
FR2719142A1 (en) * 1994-04-23 1995-10-27 Messer Griesheim Gmbh tanks identification system that can be read by machine, in particular for transport tanks of compressed gas cylinders.
US5602538A (en) * 1994-07-27 1997-02-11 Texas Instruments Incorporated Apparatus and method for identifying multiple transponders
US5821525A (en) * 1994-08-03 1998-10-13 Mitsubishi Denki Kabushiki Kaisha Reader/writer for use with non-contact IC card and reader/writer system
US5587578A (en) * 1994-08-10 1996-12-24 Gemplus Method and apparatus for optimizing magnetic flux through an electronic label of a contact-free identification system
EP0696778A1 (en) * 1994-08-10 1996-02-14 Gemplus S.C.A. Electronic tag and contactless object identification system, particularly for metal objects
FR2723654A1 (en) * 1994-08-10 1996-02-16 Gemplus Card Int Electronic Label and system for contactless identification of objects, including metal objects.
WO1996009595A1 (en) * 1994-09-21 1996-03-28 Siemens Aktiengesellschaft Device for contactless, inductive energy and data transmission and preferred use thereof for identifying gas bottles
US5866891A (en) * 1995-01-11 1999-02-02 Sony Chemicals Corp. Transmitter-receiver for non-contact IC card system
EP0890928A3 (en) * 1997-07-10 2001-06-13 Sarnoff Corporation Transmission apparatus and remotely identifying an electronically coded article
GB2335573A (en) * 1998-03-18 1999-09-22 Univ Singapore An RF transponder identification system and protocol
US6538563B1 (en) 1998-03-18 2003-03-25 National University Of Singapore RF transponder identification system and protocol
GB2335573B (en) * 1998-03-18 2000-03-15 Univ Singapore An RF transponder identification system and protocol
EP1011069A3 (en) * 1998-12-15 2000-08-30 Messer Griesheim Gmbh Device for holding electronic data carriers on gas cylinders
EP1011069A2 (en) * 1998-12-15 2000-06-21 Messer Griesheim Gmbh Device for holding electronic data carriers on gas cylinders
FR2793927A1 (en) * 1999-05-21 2000-11-24 Sudco S A Method and gas cylinders dispensing device
EP1054363A1 (en) * 1999-05-21 2000-11-22 Sudco S.A. Method and system for dispensing gas cylinders
US6696954B2 (en) 2000-10-16 2004-02-24 Amerasia International Technology, Inc. Antenna array for smart RFID tags
US6703935B1 (en) 2001-05-14 2004-03-09 Amerasia International Technology, Inc. Antenna arrangement for RFID smart tags
US6943688B2 (en) 2001-05-14 2005-09-13 Amerasia International Technology, Inc. Antenna arrangement for RFID smart tags
US8730044B2 (en) 2002-01-09 2014-05-20 Tyco Fire & Security Gmbh Method of assigning and deducing the location of articles detected by multiple RFID antennae
EP2395488A1 (en) * 2004-05-07 2011-12-14 Sensormatic Electronics, LLC Method of assigning and deducing the location of articles detected by multiple RFID antennae
WO2009039869A1 (en) * 2007-09-24 2009-04-02 Jacques Valere Vandaele Device for recognizing authenticity of compressed refill bottles

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