US3739339A

US3739339A - Warehouse indicator system

Info

Publication number: US3739339A
Application number: US00183071A
Authority: US
Inventors: A Hillhouse; A Fanthorp
Original assignee: GREAT ATLANTIC PACIFIC TEA CO
Current assignee: Great Atlantic & Pacific Tea Co Inc us; GREAT ATLANTIC PACIFIC TEA CO
Priority date: 1971-09-23
Filing date: 1971-09-23
Publication date: 1973-06-12
Anticipated expiration: 1990-06-12

Abstract

A system responsive to a punched card defining ordered items in ordered quantity is disclosed for providing quantity indication at warehouse locations containing the items. A group of indicator elements is disposed at each item location and, where the punched card defines ordered quantity by a binary number, each indicator group provides a binary indication of ordered quantity.

Description

United States Patent 1 1 1111 3,739,339 Hillhouse et al. June 12, 1973 WAREHOUSE INDICATOR SYSTEM 3,420,336 1/1969 Simjian 186/1 R 2,276,293 3/1942 Farmer 1 A. 186/] D [75] Inventors: Arthur Colts ,Neck, 2,570,918 /1951 Chodiziesner 186/1 B N.J.; Alvin J. Fanthorp, Covlngton, Primary Examiner-Donald J. Yusko Attorney-Watson, Leavenworth & Kelton [73] Asslgnee: The Great Atlantic & Pacific Tea C I c. New York, N.Y. 2? 57 ABSTRACT [22] Flled' Sept 1 A system responsive to a punched card defining or- [21] Appl. No.1 133,0 1 dered items in ordered quantity is disclosed for providing quantity indication at warehouse locations contain- U S A B the itemS. A group Of indicator elements is disposed [51] G08b 5/36 HO4q 1/30 at each item location and, where the punched card de- [58] Fieid 340/147 152 fines ordered quantity by a binary number, each indica- '"g 186/1 k 1 i 1 tor group provides a binary indication of ordered quantity. References Cited 10 Claims, 4 Drawing Figures UNITED STATES PATENTS 3,648,241 3/1972 Naito et al. 340/147 R 14 40 42 INDICATOR 64 I ELEMENT [58 LOCAL GROUP RESET 48 -46 J DETECTOR 50 Elgggpm RESET 66 38/ I 30 36- 74 CARD MATRIX DETECTOR ENABLER MODULE F24 RESET Ac.

SOURCE Patented June 12, 1973 3 Sheets-Sheet 1 WAREHOUSE INDICATOR SYSTEM FIELD OF THE INVENTION This invention relates to indicating systems for facilitating the manual collection in a warehouse of selective items in ordered quantity and, more particularly, to systems of this type which are responsive to punched cards defining items in ordered quantity.

BACKGROUND OF THE INVENTION The inefficiency generally involved in unaided manual collection of ordered items from storage locations in a warehouse has given rise to numerous efforts of introducing automation into warehousing operations. For various reasons, such efforts have apparently not met with widespread practical acceptance and present warehousing operations generally remain at a level of efficiency less than is desired. A primary reason for such non-acceptance of automation is the complexity of item dispensing and collection apparatus attributable in large part to the extensive versatility required thereof in handling items of vastly non-uniform physical dimensions. The purchase and maintenance costs and the space requirements of such apparatus also persuade against the automation of warehousing operations.

Apart from efforts at automation, various efforts have been directed to assisting the manual collection of items in the interests of improving efficiency in warehousing operations. These efforts, which typically require warehouse key-punching of orders and look toward the provision of visible indications of ordered items in a storage area or warehouse, have various operational shortcomings, e.g., requiring that the warehouse assistant determine ordered quantity by the flicker rate of a single indicator element, as in Chodziesner U.S. Pat. No. 2,570,918. Such efforts are evidently ineffective to elevate efficiency in warehousing operations to the desired level.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved system for assisting manual warehousing operations.

It is a more particular object of this invention to provide a system of the foregoing type which is operatively responsive to punched cards defining ordered items and ordered quantities thereof.

In the efficient attainment of the foregoing and other objects, the invention provides a system incorporating a punched card reader and indicator circuit means for selectively displaying information respecting ordered item quantities by use of a group of indicator elements disposed at the warehouse location of each orderable item. Means are included for selectively deenergizing all indicator elements at each location. The display of quantity information may be enhanced by the binary weighting of the indicator elements of each group in accordance with binary definition in the punched card.

The foregoing and other objects and features of the invention will be evident from the following detailed description of systems in accordance with the invention depicted in the drawings wherein like reference numerals are employed throughout for identification of like parts.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagrammatic illustration of a system in accordance with the invention.

FIG. 2 depicts a type of punched card adapted for processing by the system of the invention.

FIG. 3 is a schematic diagram of circuitry employable in the FIG. 1 system.

FIG. 4 illustrates further circuitry employable in the FIG. 1 system.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, unit 10 comprises a punched card reader, e.g., Model 2981A Card Reader, a commercially available unit produced by American Pamcor Inc. Typically, these units may be considered as including a card punch detector 12 and a switch matrix 14 incorporating a plurality of switches arranged in spatial correlation with the columns and rows of the punched card. For example, where a punched card includes p equals columns and q equals 12 rows, matrix 14 includes 960 switches arranged individually at the intersections of the 80 card columns and the 12 card rows. As indicated by reference numeral 16, matrix 14 is operated by detector 12 such that the matrix switches are selectively closed in accordance with punches present in the card. Generally, the detector includes a matrix switch operator, comprising a plurality of pins, which is applied to the card in residence in the reader. Where a card punch coincides spatially with a pin, the pin extends through the card and operates the switch therebelow.

A further element incorporated in unit 10 is card detector 18, adapted to provide indication that a card is in residence in unit 10 and that a reading of the information content thereof is desired. In providing such indication, detector 18 typically provides continuity between input line 20 and output line 22 thereof.

A source of current, e.g., A.C. source 24, having first and second terminals, respectively connected to supply line 26 and return line 28, provides the FIG. 1 system with operating power. Matrix enabler 30 is connected to line 22 and is further connected by line 32 to return line 28. Where detector 18 provides continuity between

lines

20 and 22, enabler 30 is connected across the terminals of supply 24 and thereupon provides continuity between

enabler lines

34 and 36, thereby connecting supply line 26 to switch matrix line 38. On this occurrence, first terminals of all switches in matrix 14 are connected to supply line 26 and, in accordance with selective operation of matrix 14 switches by detector 12, certain switch second terminals are connected to supply line 26 as are the output lines of matrix 14 connected to such operated switches. For brevity, in explaining the FIG. 1 system, a limited number of output lines of switch matrix 14 are considered, e.g., lines 40-50.

The output lines of matrix 14 are connected in selective groupings of m each to distinct indicator element groups. As illustrated, m is equal to three and a first indicator element group 52 is connected to

matrix output lines

40, 42 and 44 and a second indicator element group 54 is connected to

matrix output lines

46, 48 and 50. Each indicator element group includes m individual indicator elements and a first terminal of each indicator element thereof is connected to supply line 26 where the matrix output line connected thereto is connected to a matrix switch operated by detector 12. All second terminals of the indicator elements are connected, through means discussed below, to return line 28 and indicator elements are thus selectively energized in the card reading operation.

Each indicator element group is disposed in a warehouse storage location adjacent a single stored item and the m indicator elements at such location have the capability of indicating a maximum of 2" characteristics of such item. Where m is 3, as preferred, each indicator element group may indicate 2 or eight quantities, i.e., zero through seven. At each such item storage location manual input means are provided for selectively resetting, i.e., deenergizing, the indicator element group at such location in response to input thereto by a warehouse assistant. For this purpose, local reset 56 is connected by line 58 to indicator group 52 and local reset 60 is connected by line 62 to indicator group 54.

Local resets

56 and 60 are connected, by

lines

64 and 66 respectively, to supply return line 28.

Local resets

56 and 60 are also connected, by

lines

68 and 70 respectively, to matrix enabler line 36 and thus derive operating power for performing their indicator element group reset functions.

In a particularly convenient warehouse arrangement for use with the invention, a plurality of such warehouse locations are disposed in succession adjacent a conveyor to provide a warehouse module. The number of individual items in such module is preselected to be definable by one card such that a single card reader may be associated with the module and such that permanent connections may be provided for such module card reader, the module indicator element groups and the module local resets.

In collecting ordered items from such module, the

warehouse assistant inserts the punched order card in the module card reader, operates the same, and selects items from the individual item storage locations of the module in accordance with binary indications of quantity provided by the module indicator element groups. On his reading of the binary number represented by each indicator group and his placing the equivalent decimal number of the ordered item on the conveyor, he operates the local reset associated with that indic'ator element group, thereby extinguishing the indicator elements thereof. The assistant proceeds in this manner throughout the extent of the module and may then, if desired, operate module reset 72. This unit is connected by line 74 to module enabler line 36 and is connected by line 76 to return line 28. On manual input to module reset 70 by the assistant, this unit provides indication that the module is inactive.

FIG. 2 illustrates a preferred form of punched card whose information contents are to be indicated by the system of the invention. The card includes p equals 80 vertical columns and q equals 12 horizontal rows. In providing information in respect of items numbering in excess ofp, the card is divided into an upper field A and a lower field B and each such field is subdivided into two sections. Each card section per column embraces m or three horizontal rows for providing characteristic information respecting the item defined therein up to 2'" units, or eight (2 units, where m is three. As above discussed, where the item characteristic is quantity, zero through seven units may be defined. In this arrangement, the card may evidently identify (p) times (q/m) items.

In portion C of the FIG. 2 card a single punch is shown as residing in the uppermost section of field A. This punch is indicative of an order for warehoused item 005, the order quantity being two (2') units. As shown, a typical card may contain numerous such punches and, in instances where no punch is entered, e.g., for columns 001-004 and 006-010, no order is placed for the warehoused items defined thereby. A predetermined discipline is employed as between the card locations indicating particular warehoused items and the warehouse locations containing the same. Accordingly, when the card is in its readable position, i.e., is resident, in card reader 10, the card warehoused item 005 is disposed intermediate punch detector 12 and the m matrix 14 switches which are connected with the indicator group positioned at the warehouse location for item 005. In the preferred arrangement of the card, the first 75 card columns, indicated as D, are employed to provide selective punch card locations for 300 warehoused items. The next three card columns, identified as E, are employed to provide decimal indication of the retail store placing the order, i.e., store No. 856 as shown. The last two card columns, indicated as F, are

'7 employed for providing auxiliary information and specifically, in the case of field A of the last card column, for module identification. Evidently, those matrix 14 switches associated with the reading of punches in the last five columns, except for the module identification punch, are not used in this instance.

The card of FIG. 2 may of course be prepared by keypunching undertaken at the warehouse and based on written orders physically received from retail establishments. Preferably, the card is prepared by a warehouse card punch machine which receives telephone-line transmitted digital signals indicative of ordered items and ordered quantities thereof. A digital signal transmission system for this purpose is described in copending application Ser. No. 183,183, entitled Data Transmission System, filed concurrently herewith.

Preferred circuitry for use in the FIG. 1 system is shown in FIG. 3. Card detector 18 may comprise a series circuit of two switches, S1 and S2. S1 is a limit switch which is closed when a punched card is in residence in card reader 10. S2 is closed upon operation of the card reader handle by the warehouse assistant.

Upon closure of S1' and S2, card detector output line 22 is connected to input line 20 thereof. Thereupon, relay 78 of matrix enabler 30 is energized, and relay contact arm 80 provides continuity between

matrix enabler lines

34 and 36. Lamp 82 is energized at this time, indicating that card reading is in progress. Line 38 of matrix 14 is connected to supply line 26 through

lines

34 and 36 and thereby all first terminals of the individual switches of matrix 14 are connected to supply line 26. Upon the selective closure of ones of switches 84-89 of the matrix, those of lines 40-50 which are connected to the closed matrix switches will be connected to supply line 26. Selective ones of indicator elements 84-94, whose first terminals are connected through lines 40-50 to supply line 26, will accordingly be energized. As shown, the indicator elements are lamps whose filament ends provide indicator element terminals. Such energization occurs for the indicator elements of indicator group 52 since output line 58 thereof, connected in common to the second terminals of

indicator elements

84, 86 and 88, is connected to output line 54 of local reset 56 through the normally closed contacts of relay 96 and hence to return line 28, i.e., contact arm 98 connects line 58 to line 64 and line 64 is connected to return line 28. In similar manner, line 62 of indicator group 54 is connected through contact arm 100 of relay 102 to line 66 and hence to return line 28. At this time, input line 68 of local reset 56 is connected to supply line 26. However, since pushbutton 104 is unoperated, relay 96 is not energized. Similarly, for local reset 60, input line 70 thereof is connected to supply line 26 but relay 102 is unenergized, push-button 106 being unoperated.

By way of example of the operation of the FIG. 3 circuitry, let us assume that switches S5, S6, S7 and S9 are closed by card punch detector 12.

Lamps

84, 86 and 88 are assigned the

binary weights

2, 2 and 2, respectively, as are

lamps

90, 92 and 94, respectively.

Lamps

84 and 86 of indicator element group 52 are energized and lamp 88 remains unenergized. Thus, at location 001 in the storage area, a binary three is indicated, i.e., lamp 84 (2) calling for one unit of item 001 and lamp 86 (2 calling for two additional units of item 001. At location 002,

lamps

90 and 94 are energized and lamp 92 is unenergized, providing an indication of binary five, i.e., lamp 90 (2) calling for one unit of item 002 and lamp 94 (2 calling for four units of item 002.

The warehouse assistant notes the binary display provided by indicator element group 52 and removes three units of item 001 from the storage location therefor and places them on the conveyor. He then operates pushbutton 104. Relay 96 is thereby energized and remains energized after operation of the push-button, being self-latched by contact arm 108. Upon the energization of relay 96, continuity between

lines

58 and 64 is interrupted by displacement of contact arm 98 and

lamps

84 and 86 are deenergized. The warehouse assistant proceeds to place five units of item 002 on the conveyor and thereafter operates push-button 106. Relay 102 is thereby energized and self-latched by contact arm 110. Contact arm 100 is displaced, interrupting continuity between

lines

62 and 66 and

lamps

90 and 94 are deenergized.

The operations described in connection with

indicator groups

52 and 54 are repeated for all remaining indicator element groups in the module. Thereafter, the assistant may operate push-button 112 and thereby energize relay 114 and module inactive indicator element 116. Relay 114 is self-latched by contact arm 118.

Upon removal of the order card from the card reader, S1 and S2 are opened, thereby deenergizing matrix enabler relay 78, module reset relay 114 and each of the local reset relays, e.g., relays 96 and 102. At this point the system of FIG. 3 is entirely reset and is prepared for the processing of a further punched card.

Where the number of warehoused items exceeds the number of items which are definable by a single punched card, and hence is not assignable to locations in a single warehouse module, multiple modules are evidently required. In this instance, each module incorporates a system in accordance with FIG. 1, and provision may be made for insuring that a punched card intended to define items in one module is not processed by the card reader of another module. FIG. 4 illustrates circuitry for appropriate modification of the FIG. 3 circuitry for this purpose.

Referring to FIG. 4, a matrix 14 switch, S3, is connected in a series circuit with line 38 and each of the remaining matrix switches of FIG. 3, e.g., S4. The matrix cannot operate to energize the indicator elements unless S3 is closed. By reason of its position relative to punched cards inserted in reader 10, S3 is closed exclusively where such inserted card contains a punch in registry with S3, preferably a punch in a preselected row of the uppermost section of the last column of the card (FIG. 2). An effective interlock between the card reader and cards intended to be read thereby is thus provided by S3. Three such interlocks may evidently be provided by single punches entered in different rows of the uppermost section of the last card column. Seven interlocks may be readily provided by the use of three matrix switches in place of one S3.

Various modifications to the foregoing particularly described systems of the invention will be evident to those skilled in the art. For example, the punched card may be subdivided into six sections per column, i.e., m may be two. In this instance, each indicator element group includes two indicator elements for providing quantity indication of from zero to three units. The extending pin card punch detector may of course be replaced by photoelectric or like means. Accordingly, the particularly described system are intended in a descriptive and not in a limiting sense. The true spirit and scope of the invention will be evident from the following claims.

What is claimed is:

1. A system for use in providing indications, at item storage locations in a warehouse, of ordered items and ordered quantity thereof in unit or greater quantity, each said item being identified in a selective location of a punched card, said ordered quantity thereof being defined by the punches in said punched card location, said system comprising:

a. a punched card reader having a plurality of output lines and selectively energizing said output lines in accordance with said card punches;

b. a plurality of indicator elements, each indicator element being connected to a distinct one of said card reader output lines and being energized on the energization of said one output line, a group of said indicator elements being disposed at each said storage location for providing indication of said ordered quantity for a one of said ordered items in said unit or greater quantity; and

c. a plurality of circuit means, each circuit means being connected to a one of said indicator element groups and operatively responsive to manual input to deenergize the energized indicator elements in said one group. 4

2. The system claimed in claim 1 wherein said card punches provide binary definition of said ordered quantities and wherein each said indicator group provides binary indication of the ordered quantity of the item contained in the storage location at which said indicator group is disposed.

3. The system claimed in claim 2 wherein said card punches are contained in p columns and q rows of said card, each column defining q/m different orderable items in quantity ranging from zero to 2"'l, m being a number greater than unity, each said indicator element group including m indicator elements.

4. A system for use in providing indications, at item storage locations in a warehouse, of ordered items and ordered quantity thereof in unit or greater quantity defined in p columns and q rows of a punched card, each ordered item being identified in a predetermined q/m rows of one of said columns, m being a number greater than unity, said ordered quantity thereof being defined by the punches in said predetermined column rows, said system comprising:

a. a plurality ofp times q switches;

b. first means selectively operating said switches in accordance with said card punches;

c. a plurality ofp times q indicator elements, each indicator element being connected to a distinct one of said switches and energized upon operation thereof by said first means, a different group of m of said indicator elements being disposed at each said item storage location for providing indication of said ordered quantity for a one of said ordered items in said unit or greater quantity; and

d. a plurality of second means, each second means being connected to a one of said indicator element groups and operatively responsive to manual input to deenergize the energized indicator elements in said one group.

5. The system claimed in claim 4 wherein said card punches provide binary definition of said ordered quantities and wherein each said indicator group provides binary indication of the ordered quantity of the item contained in the storage location at which said indicator group is disposed.

6. The system claimed in claim 4 wherein each of said switches includes first and second terminals interconnected on operation of said switch, each said switch second terminal being connected to a one of said indicator elements.

7. The system claimed in claim 6 further including a source of current having first and second terminals, third means connecting each of said second means to said source second terminal and fourth means connecting all of said switch first terminals to said source first terminal, said fourth means including first normallyopen switch means connected in series circuit with said switch first terminals and said source first terminal.

8. The system claimed in claim 7 wherein said first means comprises a card punch detector operative to close said first switch means on the residence of a punched card in said detector.

9. The system claimed in claim 8 wherein said groups of indicator elements are disposed at the storage locations of a predetermined group of items, said fourth means including second normally open switch means connected in series circuit with said first switch means, said first means closing said second switch means exclusively where said punched card includes a punch indicating that all ordered items defined by said card are items within said predetermined group of items.

10. An indicator system comprising:

a. a plurality ofp times q switches, each switch having first and second terminals interconnected on operation of said switch;

b. first means selectively operating said switches in accordance with punches contained in p columns and q rows of a punched card, each item to be indicated being identified in a predetermined q/m rows of one of said columns, m being a number greater than unity, the quantity of said item to be indicated being defined by the punches in said predetermined column rows;

c. a plurality ofp times q indicator elements, each indicator element having first and second terminals;

d. a current source having first and second terminals;

e. first circuit means connecting said switch first terminals to said source first terminal;

f. second circuit means connecting each said indicator element first terminal to a distinct one of said switch second terminals; and

g. a plurality of third circuit means each connecting a distinct q/m of said indicator element second terminals to said source second terminal for providing indication of unit or greater item quantity, each said third circuit means being operatively responsive to a manual input to disconnect said distinct q/m indicator element second terminals from said source second terminal.

Claims

1. A system for use in providing indications, at item storage locations in a warehouse, of ordered items and ordered quantity thEreof in unit or greater quantity, each said item being identified in a selective location of a punched card, said ordered quantity thereof being defined by the punches in said punched card location, said system comprising: a. a punched card reader having a plurality of output lines and selectively energizing said output lines in accordance with said card punches; b. a plurality of indicator elements, each indicator element being connected to a distinct one of said card reader output lines and being energized on the energization of said one output line, a group of said indicator elements being disposed at each said storage location for providing indication of said ordered quantity for a one of said ordered items in said unit or greater quantity; and c. a plurality of circuit means, each circuit means being connected to a one of said indicator element groups and operatively responsive to manual input to deenergize the energized indicator elements in said one group.

3. The system claimed in claim 2 wherein said card punches are contained in p columns and q rows of said card, each column defining q/m different orderable items in quantity ranging from zero to 2m-1, m being a number greater than unity, each said indicator element group including m indicator elements.

4. A system for use in providing indications, at item storage locations in a warehouse, of ordered items and ordered quantity thereof in unit or greater quantity defined in p columns and q rows of a punched card, each ordered item being identified in a predetermined q/m rows of one of said columns, m being a number greater than unity, said ordered quantity thereof being defined by the punches in said predetermined column rows, said system comprising: a. a plurality of p times q switches; b. first means selectively operating said switches in accordance with said card punches; c. a plurality of p times q indicator elements, each indicator element being connected to a distinct one of said switches and energized upon operation thereof by said first means, a different group of m of said indicator elements being disposed at each said item storage location for providing indication of said ordered quantity for a one of said ordered items in said unit or greater quantity; and d. a plurality of second means, each second means being connected to a one of said indicator element groups and operatively responsive to manual input to deenergize the energized indicator elements in said one group.

7. The system claimed in claim 6 further including a source of current having first and second terminals, third means connecting each of said second means to said source second terminal and fourth means connecting all of said switch first terminals to said source first terminal, said fourth means including first normally-open switch means connected in series circuit with said switch first terminals and said source first terminal.

10. An indicator system comprising: a. a plurality of p times q switches, each switch having first and second terminals interconnected on operation of said switch; b. first means selectively operating said switches in accordance with punches contained in p columns and q rows of a punched card, each item to be indicated being identified in a predetermined q/m rows of one of said columns, m being a number greater than unity, the quantity of said item to be indicated being defined by the punches in said predetermined column rows; c. a plurality of p times q indicator elements, each indicator element having first and second terminals; d. a current source having first and second terminals; e. first circuit means connecting said switch first terminals to said source first terminal; f. second circuit means connecting each said indicator element first terminal to a distinct one of said switch second terminals; and g. a plurality of third circuit means each connecting a distinct q/m of said indicator element second terminals to said source second terminal for providing indication of unit or greater item quantity, each said third circuit means being operatively responsive to a manual input to disconnect said distinct q/m indicator element second terminals from said source second terminal.