Four Monitor and Checkpoint Designating System

This invention relates to an improved tour monitor system that can be used for example by a guard or night watchman to record the time at which various checkpoints on a tour are checked by the guard.

Tour monitors have advanced significantly since the early mechanical clocks which used paper tape recording systems to time stamp events of a tour. One class of modern tour monitors includes a bar code reader in a portable, hand-held device. Bar code labels are attached to each checkpoint along the tour, and the tour monitor includes means for recording consecutive bar code readings along with a time stamp for each reading. At the end of the tour, the recorded list of bar code readings and time stamps can then be transmitted to a report generating computer

Such tour monitors offer certain advantages, particularly in that the checkpoint labels can be made inconspicuous and inexpensive to attach and the associated reports can be generated in a flexible format that is easy to use. However, tour monitors of the type described above provide few additional operational features for the guard beyond those provided by the original mechanical clock systems.

The present invention is directed to an improved tour monitor and associated programming and report generating system that improve the efficiency with which the tour monitor can be programmed, the efficiency with which the guard or other service individual can use the tour monitor, and the usefulness of reports generated to summarize the monitored tours.

The tour monitor system described below provides a number of important new features which cooperate to provide a particularly efficient system. Of course, it is not necessary in all applications that all of these features be used together, and selected ones of the features can be used alone or in various subcombinations in some applications.

The tour monitor of this invention includes a modular, portable device which is adapted to be carried through a tour which comprises a plurality of checkpoints, each labelled with a respective checkpoint code. This portable device includes sensor means for reading the checkpoint codes during the tour and for generating time stamped sensor signals in response to these codes. The device also includes memory means for storing the time stamped sensor signals.

A first feature of this invention relates to a system for prompting the user of the tour monitor to move through the tour. According to this first feature, a tour monitor of the type described above is provided with means for storing a plurality of messages, each associated with a respective one of a plurality of successive zones included in the tour, wherein each of the zones is associated with a set of the checkpoints of the tour. The portable device includes display means operative when the sensor means has read selected checkpoint codes associated with a selected zone for displaying the message associated with the next successive zone. In this way, the guard or other user of the tour monitor is prompted to move from one zone to the next. This makes it easier for a new guard or other user of the tour monitor to conduct an unfamiliar tour, and it reduces inefficiencies associated with the need for an experienced guard to learn a new tour.

According to a second feature of this invention, a portable tour monitor of the general type described above is provided with means for designating first ones of the checkpoints of the tour as higher priority checkpoints and second ones of the checkpoints of the tour as lower priority checkpoints. A sequence of sets of checkpoint signals is stored, preferably in the portable tour monitor itself, along with means for comparing the sensor signals with the checkpoint signals and for displaying a warning message when the sensor signals indicate that one of the higher priority checkpoints has been missed in the sequence.

This feature of the invention alerts the guard or other user of the tour monitor when a higher priority checkpoint has been missed. In the preferred embodiment described below, the guard has the choice of either scanning the missed checkpoint or commanding an override of the warning message. This allows a supervisor reviewing the tour monitor log to be certain that a higher priority checkpoint was not inadvertently missed or forgotten. Furthermore, this feature allows checkpoints to be divided into higher and lower priority checkpoints, thereby increasing flexibility to the guard in conducting the tour.

According to a third feature of this invention, a tour monitor of the general type described above is provided with an alphanumeric keyboard which generates alphanumeric key signals. Means are provided for storing the alphanumeric key signals in association with selected time stamped sensor signals. This feature of the invention allows the guard or other user of the tour monitor to write alphanumeric messages into the log maintained by the tour monitor. For example, the guard can record the name of an unexpected person found at one of the checkpoints during the tour. In this way, the need for hand written notes or other supplements to the log can be largely eliminated.

The tour monitor described in detail below is programmable, and a computer system is provided for programming the tour monitor for a tour. According to a fourth feature, this programming device includes means for storing a plurality of user definable zone records. Each zone record comprises a set of checkpoint entries, and one or more of these sets comprise a plurality of checkpoint entries. Each checkpoint entry in turn comprises a checkpoint code associated with a respective checkpoint. The programming device of this invention includes means for creating a tour defining record comprising a user selectable plurality of zone records, and means for transmitting the tour defining record to a programmable tour monitor.

Because the programming device organizes the checkpoint entries into zone records, the tour defining record can be assembled quickly and efficiently by a user who simply selects the desired zone records to make up a tour. Once the zone records have been defined, the user often does not need to enter individual checkpoint entries when a tour defining record is to be modified, as, for example, when one zone, is substituted for another.

Once a tour has been completed and a tour monitor of the type described above has generated a tour log, the tour monitor report generating system of this invention can be used to generate reports for later analysis. According to a fifth feature of the invention, such a tour monitor report generating system includes means for receiving a log from a tour monitor, wherein the log comprises a plurality of time stamped sensor signals, at least some of the sensor signals associated with respective checkpoint codes associated with respective checkpoints The report generating system also includes means for generating a report comparing the received sensor signals with a plurality of desired checkpoint signals intended to be included in a predefined tour, wherein some of the checkpoint signals in the predefined tour are designated as higher priority checkpoints and others are designated as lower priority checkpoints. The report generating means also includes means for indicating in the report when the received sensor signals indicate that one of the higher priority checkpoints was missed. By dividing the checkpoints of the tour into higher and lower priority checkpoints and specifically flagging missed higher priority checkpoints, the report generating system of this invention allows supervisory personnel to monitor the performance of the guard or other user of the tour monitor more effectively.

The invention itself, together with further objects and attendant advantages, will best be understood by reference to the following detailed description, taken in conjunction with the accompanying drawings.

FIG. 1 is a block diagram of a tour monitor system that incorporates the presently preferred embodiment of this invention.

FIG. 2 is a plan view of the portable tour monitor of FIG. 1.

FIG. 3 is a plan view of a sample tour used for illustrative purposes.

FIG. 4 is a flow chart of the Start-Up Routine executed by the tour monitor 30.

FIG. 5 is a flow chart of the Main Menu Routine executed by the tour monitor 30.

Turning now to the drawings, FIG. 1 shows a block diagram of a tour monitor system 10 that incorporates each of the five features of the invention outlined above. This system 10 includes a computer 12 which may for example be a conventional IBM compatible PC. The computer 12 is coupled to a conventional keyboard 14, monitor 16 and printer 18. As described in detail below in conjunction with FIGS. 14-16, the computer 10 incorporates both tour programming software 20 and report generating software 22.

The system 10 also includes at least one portable tour monitor 30. Each monitor 30 is a hand-held device which includes a keyboard 32, a display 34, a sensor such as a bar code reader 36, a computer 38 and a battery 40. A cable 42 can be used to interconnect the monitor 30 with the computer 12 when desired to transfer programming information from the computer 12 to the monitor 30, or to transmit a tour log back from the monitor 30 to the computer 12. When the tour monitor 30 is actually being carried through a tour, it is of course disconnected from a computer 12 and used as a stand alone unit.

A wide variety of portable computers can be used for the tour monitor 30, but the hand-held computer marketed under the tradename MICRO-WAND III by Hand Held Products, Inc. of Charlotte, N.C. has been found suitable. FIG. 2 shows a plan view of the preferred tour monitor 30 In this embodiment, the keyboard 32 is a full alphanumeric keyboard and the display 34 includes two sixteen-character lines, wherein each of the characters is formed of a respective dot matrix that allows any desired alphanumeric character to be displayed. A control button 37 is mounted on the side of the monitor 30 to activate the bar code reader 36.

The tour monitor 30 is used to record progress of an individual such as a guard through a tour such as a security guard tour. FIG. 3 shows a plan view of a building and will be used to outline the basic features of a highly simplified tour. The tour in this example is made up of two zones. Zone FL1A includes three separate checkpoints: entry door 50A, coffee pot 50B and window 50C. Zone FL1B includes four separate checkpoints: window 51A and doors 51B, 51C, 51D. Each of the checkpoints 50, 51 is marked with a respective checkpoint label, shown in a highly schematic form at 52. Each of the checkpoint labels 52 encodes a respective checkpoint code 54, which in this embodiment is a bar code. In actual use, the checkpoint labels 52 can be inconspicuous, adhesively secured strips. Preferably, the labels 52 are uniform in visual appearance. They can for example be conventional bar code labels that appear unfeatured to the naked eye so that they are not readily apparent as bar code labels.

Within the tour shown in FIG. 3, selected ones of the checkpoints 50, 51 are designated as higher priority checkpoints. For example, the coffee pot 50P and the doors 51C and 51D can be designated as higher priority checkpoints and the remaining checkpoints can be designated as lower priority checkpoints. As pointed out below, the tour monitor 30 is programmed to process these two different priorities of checkpoints differently.

In this preferred embodiment the zones of the tour are ordered. That is, the guard is intended to check Zone FL1A before he checks Zone FL1B. However, within any one zone, the individual checkpoints are unordered, and the guard is free to check them in any order that he desires. This increases flexibility and efficiency, because it may not always be convenient for a guard to check the checkpoints Within a given zone in the same order. For example, a tour may be interrupted and it may be more convenient and efficient to resume the tour at some point within a zone other than that at which the tour was interrupted.

FIGS. 4-13 will be used to describe the operation of the tour monitor 30. The detailed discussion will then turn to the operation of the tour programming software 20 and the report generating software 22.

Prior to the start of any tour, the tour monitor 30 is programmed with a tour defining record that includes the following information:

1. The system date and time;

2. A password that can be used by a supervisor for various functions including programming the tour monitor 30 and transmitting a recorded log from the tour monitor 30 to the computer 12;

3. The number of the route defined by the tour defining record;

4. An ordered list of zone records, each zone record made up of a zone number and a zone name;

5. A list of checkpoint entries, each checkpoint entry including the zone number and the bar code of the respective checkpoint;

6. A list of higher priority checkpoint entries, each including the zone number, the bar code and the name of the respective checkpoint; and

7. A list of guard identification numbers.

As shown in FIG. 4, on start up the monitor 30 displays an initial operating system screen and then initializes various settings and functions and opens or creates appropriate files. The monitor 30 then checks to determine whether a route has been loaded. If not, control branches to the main menu routine of FIG. 5, where title screens are displayed on the display 34 and the routine waits for an appropriate key press. The key F3 causes execution of the Data Menu routine as shown in FIG. 6. Once the data menu has been displayed in the Data Menu routine, the routine then waits for appropriate key presses either to initiate the down loading of a tour defining record from the computer 12 to the monitor 30 or up loading of a log of tour data recorded by the monitor 30 from the monitor 30 to the computer 12.

When the F4 key is pressed in the main menu of FIG. 5, the monitor 30 executes the Miscellaneous Menu routine of FIG. 7. In the Miscellaneous Menu routine, a miscellaneous menu is displayed and the routine then waits for appropriate keys. In response to the F1 key, a battery check routine is executed. In response to the F4 key the monitor 30 will display bar codes scanned by the user to check operation of the bar code reader. The mode key can be used to return to the main menu of FIG. 5.

When it is desired to start a tour, the F1 key is pressed from the main menu of FIG. 5. This causes control to branch to a Begin Tour routine as shown in FIG. 8. In this routine, the monitor 30 checks to confirm that a route as defined by a tour defining record has been loaded. Once this has been confirmed HAND-OFF and TEMP-DATA are reset. The routine then waits for a guard ID to be input, either via the keys of the keyboard 32 or a scan from an appropriate bar code. Once a guard ID has been input the monitor 30 reviews the list of acceptable guard ID's included in the tour defining record. If the guard ID that was input cannot be found in this list, an error message is displayed and the routine waits for another guard ID to be input. Otherwise, the routine checks HAND-OFF. HAND-OFF is a variable which is set when one guard hands-off to another guard within a tour. If HAND-OFF is set, no further action is taken in the routine of FIG. 5. Otherwise, the initial records of the tour log are written into the memory of the monitor 30.

The tour log includes six different types of entries as shown in the following table:

At the beginning of each tour, a Start record and a Guard record are entered into the log.

Once this has been accomplished, control is transferred to the Advance to Next Zone routine of FIG. 9. This routine first checks to determine whether this is the first zone of the tour. If not, a Leave Zone record is entered into the log. In any case, the routine then reads the next zone in the route and checks to determine whether the tour has been completed. If so, a tour complete message is displayed on the display 34 and a Finish record is entered into the log. The routine then shuts down the monitor 30 and awaits for a next key to be pressed.

Assuming that this is not the end of the tour, the routine then checks to see if HAND-OFF is set. If so, a Guard record is entered int he log and in any case an Enter Zone record is entered into the log and flags are cleared for all of the higher priority checkpoints in the new zone. These higher priority checkpoints are referred to as "must scan" checkpoints in the figures. Control is then transferred to the Display Zones routine of FIG. 10.

The Display Zones routine of FIG. 10 first checks TEMP-DATA. TEMP-DATA is a temporary storage location that is used to store a scanned bar code when the scanned bar code is outside of the current zone. Thus, TEMP-DATA will be equal to zero in the event the scanned bar code is inside the current zone. If TEMP-DATA is not equal to zero, TEMP-DATA is set equal to the scanned checkpoint variable and control is transferred to the Process Scanned Checkpoint routine of FIG. 13. Otherwise, HAND-OFF and TEMP-DATA are cleared and both the current zone and the next zone of the tour are displayed on the display 34. For example, when the guard enters Zone FLlA of FIG. 3, the display 34 is caused to display the messages "1ST FLOOR-W/1ST FLOOR-E". The routine then waits for the input of a bar code from the bar code reader 36 or a key input from the keyboard 32. If either the F1 or F4 key is pressed, control branches to the routines of FIGS. 11 and 12, respectively. If the mode key is pressed, the monitor 30 is shut down to wait for additional key inputs.

Assuming that a bar code has been scanned, the routine then checks for specific scanned codes. If the scanned code is equal to "ZZ", the routine stores an alphanumeric keyboard entry from the keyboard 32 and returns to the start of the Display Zones routine of FIG. 10. If the scanned code is equal to "YY", the routine confirms that the user is requesting a hand-off, and then sets HAND-OFF and branches to node 11 of FIG. 8. If the scanned bar code is equal to "XX" the routine branches to the Request Advance routine of FIG. 11 if the guard is in the last zone, otherwise an error, message is displayed and control is returned to the start of the Display Zones routine of FIG. 10.

Finally, if the scanned code is an incident code, the scanned code is simply written into the log as a Read entry before control is returned to the start of the Display Zones routine. Assuming that the scanned code is equal to none of the tested values, control branches to the Process Scanned Checkpoint routine of FIG. 13.

FIG. 11 shows the Request Advance routine that can be reached from the Display Zones routine of FIG. 10. This routine first checks to determine whether all of the higher priority or must scan checkpoints in the current zone have been scanned. If some of the must scan checkpoints have not be scanned, then an error message "MISSED MUST-SCAN/CANNOT ADVANCE/HIT F4 TO REVIEW/MISSED MUST-SCAN" is presented on the display 34 and control is returned to the Display Zones routine of FIG. 10. Otherwise HAND-OFF is checked. If it is set, control is transferred to node 11 of FIG. 8 to get the new guard ID. Otherwise, TEMP-DATA is checked. If it is not equal to zero (indicating that the scanned code is outside of the current zone), control is transferred to the Advance to Next Zone routine of FIG. 9. Similarly, if TEMP-DATA is equal to zero and the o.k. to advance test is met, control is transferred to the Advance to Next Zone of FIG. 9. Otherwise, control is returned to the Display Zones routine of FIG. 10.

FIG. 12 shows the Review Missed Must-Scans routine that is entered by use of the F4 key in the Display Zones routine of FIG. 10. The first step is to search for any higher priority or must scan checkpoints which were missed in the current zone. If there are no such checkpoints, a message is displayed ("END OF MUST-SCAN/POINTS THIS ZONE") and control is returned to the Display Zones routine of FIG. 10. Otherwise, the name of the missed must-scan checkpoint is displayed and the user is asked whether he wishes to skip this must scan checkpoint. If the received keyboard entry indicates the user wishes to skip the must scan checkpoint, then an appropriate message is displayed and the fact that the user or guard has provided an override signal to skip the checkpoint is recorded. The routine then finds the next missed must scan checkpoint and repeats the process.

FIG. 13 shows the Process Scanned Checkpoint routine that is called by the Display Zones routine of FIG. 10. The Process Scanned Checkpoint routine first determines whether the scanned bar code corresponds to one of the higher priority checkpoints in the current zone. If so, this higher priority checkpoint is indicated as having been scanned. Then TEMP-DATA is checked. If TEMP-DATA is not equal to zero the scanned bar code is date stamped and recorded in the log as a Read record, and TEMP-DATA is cleared before control is returned to the Display Zones routine of FIG. 10. If TEMP-DATA is equal to zero, the checkpoint corresponding to the most recently scanned bar code is checked to determine whether that checkpoint is in the current zone. If so, a Read record is recorded in the log. If the most recently scanned checkpoint is outside of the current zone, the routine then determines whether the scanned checkpoint is in the next zone. If not, an error message is displayed on the display 34 and a Read record is entered into the log before control is returned to the Display Zones routine of FIG. 10. If the scanned checkpoint is in the next zone, the scanned checkpoint is stored in TEMP-DATA and control branches to the Request Advance routine of FIG. 11.

Table 2 provides a sample log as created by the tour monitor 30 during a tour of the routine illustrated in FIG. 3.

In Table 2, the route is designated R002.

The checkpoint codes for checkpoints 50a-50c and 51a-51d are F50A-F50C and F51A-F51D, respectively. The date stamp is a twelve digit number in the form year-month-day-hour-minute-second. Note in the log of Table 2 that the guard has failed to scan the 51b and 51c cheokpoints. Of these the 51c checkpoint is a higher priority, must scan checkpoint. Also at line 10 of the log the guard has scanned the bar code ZZ from a pocket reference card and then has entered the alphanumeric message "WINDOW OPEN", which is shown schematically at line 14.

A number of important operational features of the tour monitor 30 have been illustrated by the flowcharts of FIGS. 4-13. In particular, it should be noted that the monitor 30 displays on the display 34 both the name of the current zone and the name of the next zone in the tour. These zone identifying messages assist a new guard in conducting the tour in the order intended, and they also assist an experienced guard in learning a new tour.

Second, the monitor 30 is pre-programmed by the tour defining record for a tour made up of an ordered sequence of zones, wherein each zone includes a set of checkpoints that are not ordered within the set. This allows the guard to check the checkpoints within each zone in any order he desires while enforcing an overall sequence of zones in the tour.

Third, the checkpoints within each zone are designated as either higher priority (must scan) checkpoints or lower priority checkpoints. The monitor 30 does not take any action if lower priority checkpoints are not scanned during the tour. However, in the event any higher priority checkpoints are not scanned, the monitor 30 does not advance to the next zone until the guard has been reminded that the higher priority checkpoints were not scanned and the guard has indicated an intention to override this warning by skipping rather than scanning the missed checkpoints. This allows flexibility during the tour, because the guard can scan only a varying number of the lower priority checkpoints in each tour. Nevertheless, the guard is reminded that each of the higher priority checkpoints is to be scanned each tour. For example, potential fire sources such as coffee pots can be designated as higher priority checkpoints so that in each tour each coffee pot in a building is checked to ensure that it is unpowered and therefore not a fire hazard.

Another important advantage is that the monitor 30 allows the guard to record any desired alphanumeric message (within the allowed length) at any point within the tour. This is done by scanning a bar code that designates an alphanumeric message is to follow, and then entering the alphanumeric message via the keyboard 32. The keyboard 32 generates key signals which are then stored by the monitor in association with the bar codes of the log for later transmission to the computer 12. This feature provides an important degree of flexibility in the log which allows the guard to record unexpected events.

Turning now to FIGS. 14-16, the tour programming software 20 and the report generating software 22 of the computer 12 will now be described.

FIG. 14 shows an overall flowchart of the software of the computer 12. The software requires a password of the user and then after monthly maintenance displays a main menu and waits for a selection. As shown in FIG. 14 there are four basic sets of routines available to the user.

The first is a down-load routine that downloads a tour defining record to the tour monitor 30. The tour defining record is of the type described above prior to the discussion of the program of FIG. 4, and it includes a route record which is created with the program of FIG. 16 described below.

The user can also select from the main menu an up-load routine that up-loads a completed tour log (as for example that shown in Table 2) from the tour monitor 30.

The letter "C" can be used to select processing routines that process a completed tour log and print a tour report. Table 3 is an example of a report that may, for example, be printed in response to the tour log of Table 2. This report provides a summary of the information included in the log, in a format that is readily understood by supervisory personnel.

Note in particular that for each checkpoint that was scanned during the tour the report includes a description of the checkpoint along with the checkpoint's zone number, bar code and the time the checkpoint was scanned. As shown in Table 3, the report is divided into sections corresponding to the separate zones of the tour. This allows supervisory personnel to focus on particular zones easily.

Another important feature of the report of Table 3 is that it includes the alphanumeric messages that were keyed by the guard after the bar code "ZZ" was scanned. Note, for example, the "WINDOW OPEN" message in the incident column.

A third important feature of the report of Table 3 is that higher priority checkpoints that were not scanned by the guard are highlighted, while missed lower priority checkpoints are not indicated. Note the exclamation point at the line associated with Suite 102, bar code F51C. The exclamation point indicates that the guard missed this higher priority checkpoint. Also, the header of the report summarizes the total number of higher priority or must-scan checkpoints which were missed.

By pressing the letter "D" in the main menu, the user can select the print history reports routine shown in FIG. 15. This routine first displays a history report menu and then waits for the user to select one of five possible history reports. For example, the system can be commanded to prepare and print reports summarizing the history of a particular guard, a particular zone or zones, a particular checkpoint or checkpoints, and incidents reported by guards. Finally, detailed history reports are also available.

By typing the letter "E" in the main menu of FIG. 14, the user can select the file maintenance routines shown in FIG. 16. The file maintenance routines allow the user to create, delete and edit entries in a guard ID file, a set of zone files, and a set of route files.

The guard ID file maintains a list of authorized guard codes. Once the guard ID file has been created and updated as necessary in the routine of FIG. 16, this file is included in the tour defining record (Item 7).

In the zone maintenance portion of the routine of FIG. 16 a user can create or delete a zone and add, delete or edit checkpoints within the zone. Within each zone, a bar code, description and must-scan flag are entered by the user to define each checkpoint of the zone. The bar code identifies the bar code associated with the checkpoint; the description is used by the tour monitor 30 in the event of a missed higher priority checkpoint and by the report generating software; the must scan flag designates the checkpoint as either a higher priority or a lower priority checkpoint. None, some, or all of the checkpoints within any zone can be designated as higher priority checkpoints. Each zone can be thought of as a set of checkpoints, and if desired a zone can have no checkpoints (the empty set). Such a zone is in effect merely a message displayed to the guard at a selected point in the tour.

The route maintenance portion of the routine of FIG. 16 allows the user to create and delete a route and to add and delete zones within a route.

Finally, the print data listing portion of the routine of FIG. 16 allows the user to print out a list of guards, zones and routes.

The file maintenance routine of FIG. 16 is used by a user first to create a number of zones. In the example of Route No. 2 shown in FIG. 3, the user creates two zones, FL1A and FL1B. For each checkpoint in each zone, the user enters the checkpoint bar code, description, and must-scan flag for that checkpoint.

The user then uses the route maintenance portion of the routine of FIG. 16 to actually create the route. In this case, the user merely indicates that Route 2 is to include zones FL1A and FL1B.

Individual zones may appear in more than one route or more than once in a route, and individual checkpoints may appear in more than one zone. This allows a high degree of flexibility in programming the tour monitor 30. For example, a user can change the order in which zones are inspected, or move individual zones from one route to another, simply and easily, without re-entering individual checkpoints. This flexibility is directly attributable to the fact that each route is a set of zones, and that each zone is a set of checkpoints. This arrangement has been found to simplify the programming of the tour monitor 30 when routes are being modified.

Simply by way of example in order better to define the presently preferred embodiment of this invention, Appendices 1-1 and 2-1 list the programs executed by the computer 12 and the tour monitor 30, respectively. Appendix 3-1 provides instructions for usihg these listings, and Appendices 1-2, 1-3 and 1-4 are also referenced in Appendix 3-1. In each case the listing is to be regarded as the primary disclosure of the presently preferred embodiment. In the event of any inconsistency between the listing and the flowcharts the listing is to govern. In the event of any inconsistency between the flowcharts and the written description, the flowcharts are to govern.

Of course, it should be understood that a wide range of changes and modifications can be made to the preferred embodiments described above. For example, this invention is not limited to use in security tours, but can readily be adapted for other types of tours such as the tours to inspect or perform janitorial activities such as housekeeping activities. Furthermore, this invention is not limited to the specific hardware used in the foregoing examples. For example, magnetic code readers, character recognition devices and the like can be substituted for the bar code reader described above. Furthermore, it is not essential in all embodiments that a cable 42 be used to interconnect the monitor 30 with the computer 12. A wide variety of communication approaches can be used, including modems, radios, and optical communication systems. In the event remote transmission capabilities are provided to the monitor 30, it is not essential that the log be stored in memory until the tour is completed prior to transmission of portions of the log back to the computer 12. Of course, a wide variety of reports can be generated utilizing the information transmitted from the monitor 30 to the computer 12.

It is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, which were intended to define the scope of this invention. ##SPC1## ##SPC2## ##SPC3## ##SPC4## ##SPC5## ##SPC6## ##SPC7## ##SPC8## ##SPC9## ##SPC10## ##SPC11## ##SPC12## ##SPC13## ##SPC14## ##SPC15## ##SPC16## ##SPC17## ##SPC18## ##SPC19## ##SPC20##