Abstract:
A method for tracking and controlling the delivery and/or pickup of goods/containers for goods comprises the steps of a) taking a mobile data terminal in a service center, the mobile data terminal having an integrated barcode scanner for reading the data required for performing tracking and control; b) reading the data which identify a driver performing the pickup or delivery, his route and transportation vehicle used for this purpose; c) storing of the data read in step b) in a storage of the mobile data terminal and displaying of the data read in step b) in a readable form; d) arriving at all customers on the round and reading of each customer&#39;s barcoded data and of the data of the goods/containers for goods to be picked-up or delivered at the customer together with the simultaneous storage of date and the time; e) storing the data (including the date and the time) read in step d) in the storage of the mobile data terminal and displaying the data read in step d) in readable form in the display of the mobile data terminal; and f) after completion of the round, transferring of the data from the storage of the mobile data terminal to the computer system in the service center. The arrangement for the above-mentioned method comprises a mobile data terminal with a display and keys for data input and for calling up certain functions stored in the mobile data terminal respectively. A barcode scanner is integrated into the mobile data terminal. All data to be collected are available in the form of a barcode: one barcode is allocated to a driver, one to a transportation vehicle, one to each customer on a round and one to each of the containers for goods which are to be delivered to customers and/or to be picked up from customers.

Description:
FIELD OF THE INVENTION 
     The invention relates to a method for tracking and controlling the delivery and/or pickup of goods/containers for goods. In addition, the invention relates to an arrangement for tracking and controlling the delivery and/or pickup of goods/containers for goods, said arrangement comprising a mobile data terminal with a display and a keyboard for the input of data and the activation of certain functions stored in the mobile data terminal respectively, said arrangement also being provided with a control center having a computer system to which the data stored in the mobile data terminal can be transmitted or through which the functions stored in the data terminal can be updated. 
     BACKGROUND OF THE INVENTION 
     WO-96/13015 discloses a system for tracking the delivery of parcels. The system comprises a portable data terminal with a keyboard and a device for reading the barcode. The portable data terminal is so designed that it can accept and store the data of a certain parcel (barcode), the signature information and the information provided via the keyboard. The data stored in the data terminal are sent via a modem to a central computer. 
     WO-94/22580 describes a device for producing labels for the identification and for the tracking of samples to be tested in a laboratory. Parts of the barcodes on the samples can also be used for the delivery/pickup at another laboratory. The publication does not disclose the use of the barcoded data for tracking delivery and/or pickup. 
     In EP-A-0 645 728 an optical scanner is described which is integrated into a communication unit (telephone, mobile phone etc.). Among other things, the scanner can be used for the tracking of stock and sales. The scanned data are immediately transferred to the computer unit. In this instance, storage of the scanned data in the portable unit is not possible. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a reliable method and an arrangement which can be used to track the delivery to and pickup from a customer of goods/containers for goods, respectively. In addition, this arrangement and method is intended to provide a fast and reliable information system with which customer inquiries can be answered in detail. 
     In accordance with the present invention, this method is achieved by means of the following steps: 
     a.) taking a mobile data terminal in a service center, said mobile data terminal having an integrated barcode scanner which can read the data necessary for performing tracking and control; 
     b.) reading the barcoded data which serve to identify the driver performing the delivery or pickup , his route and the vehicle used for transportation of the goods; 
     c.) storing of the data read in step b) in a storage of the mobile data terminal and displaying the data read in step b) in readable form; 
     d.) arriving at all customers on the delivery or pickup round and reading of each customer&#39;s barcoded data and the data of the goods/containers for goods to be picked up or delivered to said customer with simultaneous storage of date and time; 
     e.) storing the data (including the date and the time) read in step d) in the storage of the mobile data terminal and displaying the data read in step d) in readable form in the display of the mobile data terminal, and 
     f.) after completion of the delivery and/or pickup round, transferring the data from the storage of the mobile data terminal to the computer system of the service center. 
     In accordance with the present invention, this object is further achieved in that the arrangement has a barcode scanner integrated in the mobile data terminal, and in that all data to be read by the mobile data terminal are available in the form of a barcode, and in that one barcode is allocated to each driver, one to each transport vehicle, one to each customer of a particular round and one to each container which is to be delivered to and picked up from a customer, respectively. 
     The advantage of the method and the arrangement in accordance with the present invention is that by using a barcode scanner which is integrated in the mobile data terminal, all data necessary for tracking the delivery and pickup, respectively, can be read and stored in said mobile data terminal. The data stored in the mobile data terminal are read in a control center thereby permitting the completed delivery or pickup to be protocolled. The protocol can contain the day, the time, the number of goods/containers for goods, the identification number of the goods/containers for goods, the name of the customer, the customers&#39;s identification number and the driver&#39;s personal number. The transfer of the data collected by the mobile data terminal to a computer system in a service center provides an instrument able to work quickly and reliably when a response is needed to a customer inquiry. All data are stored in a databank and can be used by applying conventional retrieval techniques. 
     In addition, the program implemented in the mobile data terminal is so designed that during the process of delivering goods or loading the transport vehicle, it is possible to check whether the right goods/containers for goods have been loaded for a particular round. 
     The subject matter of the invention will now be described with reference to an embodiment shown in the drawings. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIGS. 1a-1d show a topview, a rear view, a front view and a side view of an embodiment of a mobile data terminal used; 
     FIG. 2 represents a schematic drawing of the method for picking up and delivering goods/containers for goods to customers, respectively; 
     FIG. 3 depicts the main menu on the display of the mobile data terminal; 
     FIGS. 4a-4b depict the display of the mobile data terminal showing the driver&#39;s data and confirmation of the driver&#39;s data; 
     FIG. 5 represents the display of the mobile data terminal showing the menu functions available for a delivery/pickup round; 
     FIGS. 6a-6c show the display of the mobile data terminal giving the data of the loaded container, the customer&#39;s data together with the data of the delivered container; 
     FIG. 7 depicts the display of the mobile data terminal with the data transfer information; and 
     FIGS. 8a-8b show the entrance menu on the display of the mobile data terminal for changing the system data and the display for changing the systems data. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     A mobile data terminal 1 is used to perform the acquisition of data. A possible embodiment is shown in FIGS. 1a to 1d. It is obvious that the number of keys 2 for the manual input are tailored to meet the needs of the application for which data terminal 1 is used. Modification of keys 2 to suit particular requirements is useful in order to minimize wrong inputs or manipulations by the person operating the terminal. Mobile data terminal 1 has a display 4 showing the different steps of the method and the tasks to be performed by the operator, respectively. Keys 2 are connected to display 4 and are used for making selections and for entering data. An upper left key 2a can be used to switch on mobile data terminal 1 and an upper right key 2b can be used to switch off mobile data terminal 1. The upper left key 2a bears the label &#34;SELECTION&#34; and is used in the program in the mobile data terminal to activate keys with two different functions. A &#34;DATA ACQUISITION&#34; key 2c is provided next to upper right key 2a which, when pressed, produces an empty display 4 thereby allowing the acceptance of new sets of data. Next to &#34;DATA ACQUSITION&#34; key 2c is &#34;END&#34; key 2d which terminates a certain action and makes a return to the next highest program level possible. The upper right key 2b is labeled &#34;NO&#34; and serves to negate the messages shown in display 4. In addition, as already mentioned, simultaneous pressing of keys 2a and 2b serves to activate or switch off the mobile data terminal. A first and a second arrow key 2e and 2f are provided directly below upper right key 2b. By pressing the first and the second arrow key 2e and 2f it is posible to scroll line by line over the menu points and over the acquisition data in the upward or downward direction. When the upper left key 2a is pressed either the first or last data set or menu point is displayed. &#34;RUBOUT&#34; key 2g is provided below the second arrow key. Using said key 2g the cursor can be moved in an input field to the left. &#34;INPUT&#34; key 2h is located below &#34;RUBOUT&#34; key 2g. By pressing said key 2h, data can be entered via keys 2 and the numerical keys respectively. A&#34;JUMP&#34; key 2k which is positioned below the upper left key 2a can be used to move the cursor during the processing of a task. A &#34;SCAN&#34; key 2i which is set next to &#34;JUMP&#34; key 2k can be pressed to activate a built-in barcode scanner 10. 
     FIG. 1b shows a rear view of mobile data terminal 1 wherein an interface 6 for the transfer of data is integrated. In addition, a connection 8 for a battery charger is integrated into mobile data terminal 1 (see FIG. 1c ) thereby allowing recharging of the batteries (not shown) in mobile data terminal 1. In the embodiment shown in FIG. 1d, barcode scanner 10 is integrated in side wall 12 of mobile data terminal 1. It is obvious, however, that barcode scanner 10 can be integrated anywhere in mobile data terminal 1. 
     The use of mobile data terminal 1 for the pickup of goods and/or containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  from different customers 20 1 , 20 2  to 20 N  is illustrated in the method as graphically shown in FIG. 2. A service center 28 provides a driver 24 of a transportation vehicle 26 with the mobile data terminal 1. Driver 24 is given a barcode 24a which contains the driver&#39;s personal identification number. This barcode 24a is read into mobile data terminal 1 by barcode scanner 10. In the same way, transportation vehicle 26 can be given a barcode 26a which is likewise recorded by barcode scanner 10. On his route the driver has to visit several customers 20 1 , 20 2  to 20 N  and has to pick up goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  from the customers 20 1 , 20 2  to 20 N . Each customer 20 1 , 20 2  to 20 N  on the driver&#39;s route likewise has a barcode 30 1 , 30 2  to 30 N . This barcode 30 1 , 30 2  to 30 N  can be posted in a pickup room (not shown) or on a door which is opened with a suitable key by driver 24. Barcode 30 1 , 30 2  to 30 N  assigned to customer 20 1 , 20 2  to 20 N  is likewise read by scanner 10 integrated in mobile data terminal 1. The number of the customer is displayed on display 4 and stored in the storage of mobile data terminal 1. For example, driver 24 arrives at first customer 20 1  on his route and uses mobile data terminal 4 to read barcodes 32 1a  and 32 1b  attached to goods/containers for goods 22 1a  and 22 1b  to be picked up; thereafter, the goods/containers for goods 22 1a  and 22 1b  are loaded onto transportation vehicle 26. The same procedure is performed at following customers 20 2  to 20 N  on said driver&#39;s route. After finishing his round, driver 24 returns with transportation vehicle 26 to the service center, where picked-up goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  are handed over for further processing and the data are read from the storage of mobile data terminal 1. The data can be stored, for instance, in a computer system 29 of a conventional data bank and are hence available for all kinds of search and documentation processes. The data in the storage of mobile data terminal 1 are erased after their transfer from mobile data terminal 1 to computer system 29. In addition, the batteries of mobile data terminal 1 are exchanged or recharged in service center 28. 
     When delivering goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc , driver 24 is given mobile data terminal 4 by service center 28. He then uses barcode scanner 10 of mobile data terminal 1 to read his barcode 24a and barcode 26a of transport vehicle 26. Transportation vehicle 26 is loaded with goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc . In the course of his round, the driver goes to different customers 20 1 , 20 2  to 20 N . Upon arrival at his first customer 20 1 , for example, the driver opens the door to a pickup or delivery room and scans barcode 30 1  put at his disposal there by first customer 20 1 . During this step mobile data terminal 1 registers both date and time. In the next step, barcode scanner 10 of mobile data terminal 1 is used to read barcodes 32 1a  and 32 1b  of goods/containers for goods 22 1a  and 22 1b  which have been delivered to first customer 20 1 . In this way, the data acquisition at first customer 20 1  is completed and the same method is used at all subsequent customers 20 2  to 20 N  on the driver&#39;s tour. 
     In another embodiment of the method, driver 24 reads all barcodes attached to goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  with barcode scanner 10 of mobile data terminal 1 in service center 28; this operation is performed, for example, when loading transportation vehicle 24. When said driver makes his first delivery stop at first customer 20 1 , barcodes 32 1a  and 32 1b  of goods/containers for goods 22 1a  and 22 1b  are scanned. Mobile data terminal 1 then checks to ensure that the delivery at first customer 20 1  is correct, and if necessary, will notify the driver should a container be delivered which does not belong to first customer 20 1 . 
     Once driver 24 has been to all customers 20 1 , 20 2  to 20 N  on his route, he then returns mobile data terminal 1 to service center 28. In addition, the data can be transferred via an acoustic coupler or mobile telephone to computer system 29 in service center 28. 
     In another embodiment of the method according to the present invention, there is no strict separation of delivery and pickup rounds. In this case, driver 24 can use a selection menu in display 4 of mobile data terminal 1. Driver 24 decides between a pickup or a delivery to a customer, or a change of driver. Delivery and pickup can be performed at the same time. 
     Via display 4 of mobile data terminal 1, driver 24 can control the collected data, or he can use the different functions offered in display 4 to change from one level of the program to the next. All data collected from the various types of barcodes by means of barcode scanner 10 are stored in the different data sets in the order in which they were acquired. As a consequence, while still processing a customer order, it is possible to scroll over all already available data sets; this is done using first arrow key 2e or second arrow key 2f. If the beginning or the end of a data set is reached during scrolling, then an acoustical signal will be heard. With &#34;DATA ACQUISITION&#34; key 2c, the data input mask is shown empty and a new data set can be read by barcode scanner 10 and stored in mobile data terminal 1. With &#34;END&#34; key 2d, the current operation is terminated and the next highest program level appears in display 4 of mobile data terminal 1. 
     It should be remarked at this point that the numbers of customers 20 1 , 20 2  to 20 N  or the numbers of goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  can also be read into mobile data terminal 1 via the numerical keys of said terminal. 
     When mobile data terminal 1 is switched on, the program implemented in mobile data terminal 1 is displayed. In particular, the version of the program just used and the current day&#39;s date is displayed. By pressing &#34;INPUT&#34; key 2h, driver 24 gets to display 34 as shown in FIG. 3. Display 34 represents the main menu of the implemented program. In the embodiment shown here, the display shows five lines 34a, 34b, 34c, 34d and 34e. Selection of the first line 34a allows data concerning driver 24 and/or transportation vehicle 26 to be read into mobile data terminal 1. Second line 34b makes it possible to start the part of the program for the acquisition of data contained in barcodes of customers 20 1 , 20 2  to 20 N  and of the data in the barcodes of goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc . The third menu point in third line 34c calls up the part of the program which deals with communication. Here, data saved in the storage of mobile data terminal 1 can be loaded onto a data base in service center 28 either by data telecommunication or via a direct connection with computer system 29. By calling up fourth line 34d of the main menu, the date and/or the time can be changed. The fifth line can be used to bring the user back to the version display. 
     Before any round can be commenced, the data have to be entered which relate to driver 24. When the first line 34a of the main menu 34 is selected, the message &#34;data already transmitted&#34; appears on display 4 of mobile data terminal 1. If this message is confirmed by means of key 2d &#34;END&#34; or &#34;INPUT&#34; key 2h, then the main menu reappears. By pressing upper right key 2b, the user will be returned to display 36 shown in FIG. 4a. 
     When this display 36 appears in the display of mobile data terminal 1, barcodes 24a for driver 24, for transportation vehicle 26 and for the round to be made can be entered into the mobile data terminal. The data obtained by means of the barcodes are presented in readable form in display 4. Display 36 for the data consists of three lines 36a, 36b and 36c. 
     The first line 36a represents the number of driver 24, for instance, a five digit number. The second line 36b represents the number of vehicle 26 as a four digit number and the third line 36c represents the number of the round as a five-digit number. By pressing &#34;INPUT&#34; key 2h, driver 24 arrives at display 38 as shown in FIG. 4b. With this display the data just entered can be checked. A welcoming message 38a appears in display 4 and this is followed by the appearance of the data entered for driver 24, transportation vehicle 26 and the round. Inquiry line 38b then appears in which the correctness of the data has to be confirmed. After confirmation of the correctness of data by means of &#34;INPUT&#34; key 2h, the user is returned to the first display 34. In the next step, the second line 34b of first display 34 can be selected. 
     Driver 24 gets to display 40 as shown in FIG. 5 in which all menu items available for his round appear in display 4 of mobile data terminal 1. The load function for goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  can be called up in first line 40a. The delivery function &#34;CUSTOMER/CONTAINERS FOR GOODS&#34; can be called up in second line 40b. In third line 40c the menu item &#34;CONTAINERS FOR GOODS/CUSTOMER&#34; can be selected where goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  to be delivered are first entered and afterwards the barcode of the customer on the round to be made by the driver. 
     Selection of one of the menu points, as shown in FIG. 5, will allow the user to get to displays 42, 44 and 46 of display 4 (as shown in FIGS. 6a to 6c) of mobile data terminal 1. Display 42 provides driver 24 with a readable representation of the barcodes of the goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  which have been loaded onto transportation vehicle 26. Line 42a displays a ten digit number 42b which corresponds to the entered barcode 32 1b , 32 2a , . . . 32 Na , 32 Nb , 32 Nc . The positions 1 to 5 correspond to the number of loaded goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  and the positions six to ten must agree with the number entered into display 36 for the number of the round. The mobile data terminal 1 checks this and, in case of a discrepancy will display, for example, the message &#34;Wrong Round&#34;. By pressing &#34;ACQUISITION&#34; key 2c, line 42a for the number 42b is emptied and a new barcode 32 1a , 32 1b , 32 2a , . . . 32 Na , 32 Nb , 32 Nc  for goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  can be entered. When driver 24 has recorded all data for goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  he can return to display 40 (shown in FIG. 5) by pressing &#34;END&#34; key. 
     Selection of second line 40b (FIG. 5) will call up delivery function &#34;CUSTOMER/CONTAINERS FOR GOODS&#34;. The program then checks with mobile data terminal 1 to determine whether the load function was performed in the prior step. If this was not the case, a reminder appears in display 4 that this function has to be first performed. Display 44 (FIG. 6b ) has line 44a into which barcodes 30 1 , 30 2  to 30 N  of customers 20 1 , 20 2  to 20 N  can be entered and second line 44b into which the barcodes of goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  to be delivered can be entered. The number of the customer shown in first line 44a is compared by mobile data terminal 1 with the number of the customer obtained during the load function. In this way, it is possible to check whether or not customers 20 1 , 20 2  to 20 N  are on the round. In the case of a discrepancy, a message will appear in mobile data terminal 1 which will say, for example, &#34;wrong customer&#34;. The barcodes of goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  delivered to the customer are scanned and the number appears in second line 44b of display 44. Mobile data terminal 1 also checks if goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  belong to customers 20 1 , 20 2  to 20 N . The scanned number is compared with number 42b which was already read during the load function. By pressing &#34;DATA ACQUISITION&#34; key 2c, the area of line 44b, in which the number appears, is again emptied, thus enabling the input of data for a new delivery round. After finishing the delivery to a customer, &#34;END&#34; key 2d is pressed. The program of mobile data terminal 1 checks if the delivery has been completed. If this is the case, display 4 of mobile data terminal 1 shows display 40. 
     Selection of third line 40c (FIG. 5) calls up the delivery function &#34;CONTAINERS FOR GOODS/CUSTOMER&#34;. FIG. 6c shows display 46 with line 46a for entering barcodes 32 1b , 32 2a , . . . 32 Na , 32 Nb , 32 Nc  for goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  The number shown in first line 46a for goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  is compared with the number shown in second line 46b of customer 20 1 , 20 2  to 20 N . The number for goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  consists of a first and a second part. The first part with the positions 1 to 5 relates to the number of the customer and the second part with the positions six to ten relates to the number for goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc . The number for customer 20 1 , 20 2  to 20 N  has to agree with the number for customer 20 1 , 20 2  to 20 N  on goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc . In this way it is possible to check if customer 20 1 , 20 2  to 20 N  on the round has put out the correct goods/containers for goods 22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc  for pickup. In the event of a discrepancy, mobile data terminal 1, displays, for example, the message &#34;wrong pickup&#34;. By pressing &#34;DATA ACQUISITION&#34; key 2c, the area of line 46a showing the number is again emptied and the acquisition of data for more goods/containers for goods is possible. After completion of a pickup round to a customer, &#34;JUMP&#34; key 2c is pressed whereupon a switch is made to second line 46b of display 46, and pickup can be performed at another customer. Once the pickup has been completed, &#34;END&#34; key 2d is pressed. The program of mobile data terminal 1 checks if the pickup has been completed. If this is the case, display 4 of mobile data terminal 1 shows display 40. 
     The transfer of data from mobile data terminal 1 to computer system 29 is performed by selecting third line 34c in main menu 34. Mobile data terminal 1 also checks if the data are available for transmission. If the data are available for transmisssion, then display 4 of the mobile data terminal 1 shows display 48 bearing command 48a &#34;connect the mobile data terminal with the computer!&#34;. The transmission is started by pressing &#34;INPUT&#34; key 2h. After completion of transmission, a message appears that the transmission was successfully performed. By pressing &#34;INPUT&#34; key 2h, display 4 returns to display 34 of the main menu. 
     When the fourth line 34d of the main menu 34 is selected (see FIG. 8a), the display 50 appears in display 4 and the user can change the date/time. A password has to be entered in line 50a of display 50 in order to prevent unauthorized tampering. When the correct password is entered, display 52 (see FIG. 8b) appears in display 4 of mobile data terminal 1 with a first line 52a for the date and a second line 52b for the time. By pressing &#34;END&#34; key 2d or &#34;INPUT&#34; key 2h the user will be returned to main menu 34. 
     The present invention has been described with reference to a preferred embodiment; however, it is obvious that an person skilled in the art may make modifications in accordance with his capabilities without exceeding the scope of protection of the following claims. 
     PARTS LIST 
     1 mobile data terminal 
     2 keys for manual input 
     2a upper left key 
     2b upper right key 
     2c &#34;DATA ACQUISITION&#34; key 
     2b &#34;END&#34; key 
     2e first arrow key 
     2f second arrow key 
     2g &#34;RUBOUT&#34; key 
     2h &#34;INPUT&#34; key 
     2k &#34;JUMP&#34; key 
     2i &#34;SCAN&#34; key 
     4 display 
     6 interface 
     8 connection for recharging battery 
     10 barcode scanner 
     12 side wall 
     20 1 , 20 2  . . . 20 N  customers 
     22 1a , 22 1b , 22 2a , . . . 22 Na , 22 Nb , 22 Nc , goods/containers for goods 
     24 driver 
     24a barcode of the driver 
     26 transportation vehicle 
     26a barcode of the transportation vehicle 
     27 acoustic coupler/mobile telephone 
     28 service center 
     29 computer system 
     30 1 , 30 2  . . . 30 N  barcode of the customer 
     30 1a , 32 1b , 32 2a , . . . 32 Na , 32 Nb , 32 Nc  . . . barcode of goods/containers 
     for goods 
     34 first display 
     34a first line of first display 
     34bsecond line of first display 
     34c third line of first display 
     34d fourth line of first display 
     34e fifth line of first display 
     36 display of driver&#39;s data 
     36a first line of the display of the driver&#39;s data 
     36b second line of the display of the driver&#39;s data 
     36c third line of the display of the driver&#39;s data 
     38 display for performing checks 
     38a welcome formula 
     38b inquiry line 
     40 display of the menu points available for a delivery/pickup round 
     40a first line of display 40 
     40b second line of display 40 
     40c third line of display 40 
     42 display of load function 
     42a ten-digit number in display 42 
     42b number 
     44 display of delivery function (&#34;CUSTOMER/CONTAINERS FOR 
     GOODS&#34;) 
     44a first line of display 44 
     44bsecond line of display 44 
     46 display of the delivery function (&#34;CONTAINERS FOR 
     GOODS/CUSTOMER&#34;) 
     46a first line of display 46 
     46b second line of display 46 
     48 communication display 
     48a report 
     50 display of password 
     50a line of display 50 
     51 password 
     52 display for changing date/time 
     52a first line of display 52 
     52b second line of display 52