Patent Document

This Application is a continuation of, commonly-owned U.S. patent application Ser. No. 10/718,327 filed Nov. 20, 2003 now U.S. Pat. No. 7,092,006; which is a continuation of U.S. application Ser. No. 09/221,250, entitled INTERNET SURVEILLANCE SYSTEM AND METHOD, which was filed Dec. 28, 1998 now U.S. Pat. No. 6,720,990. The entirety of this application is incorporated by reference herein for all purposes. 
    
    
     TECHNICAL FIELD 
     This invention relates generally to a commerce-based system and method, and in particular, to a system and method for a central server to manage remote monitoring tasks performed by users of a data network such as the Internet. 
     BACKGROUND 
     Video surveillance has grown to play an important part in security. Video cameras have been employed in numerous locations to monitor and deter certain undesirable behavior. 
     Video cameras are currently used to monitor locations in the absence of humans. ATMs, banks, and convenience stores are typically equipped with video cameras that constantly record video signals for later viewing. Thus, in the event of an emergency such as a robbery, the recorded signal can be reviewed at a later time to help identify the perpetrators of the crime. However, these systems are primarily useful for identifying criminals after the crime has been committed. The only way these systems can prevent crime is by the deterrence that results from the presence of the camera. That is, an unscrupulous party would be more hesitant to commit a crime if they saw a video camera. 
     Video cameras have also been employed to assist humans in monitoring locations. Retail stores have used video cameras so that store managers and security guards can view customer behavior in an effort to curtail shop-lifting. Furthermore, security guards in offices and apartment buildings use video cameras to view several locations simultaneously. For example, a security guard may view hallways, parking lots and elevators while sitting at a front desk. 
     While video cameras that automatically record activity for later review are not particularly useful in preventing crime, video cameras that assist humans in the monitoring process suffer their own shortcomings. For example, proprietary systems such as closed-circuit television systems can only be used by employed security guards. And because only a limited number of security guards can feasibly view the video feeds from these closed-circuit television systems, there are more errors in the detection of emergencies. In order to effectively monitor all areas of an establishment at all times, the owner would need to employ a substantial number of security guards, which would be prohibitively costly. Moreover, prior art video security systems do not enable managers and employers to test for a security guard&#39;s attentiveness. Thus, a security guard could be sleeping while supposedly “watching” the monitor. 
     The widespread adoption of the Internet as a tool for remote communication has also given rise to the development of video and image-based remote security systems. For example, PriVID Eye Systems Corporation is a Florida-based development firm specializing in advanced remote video monitoring technologies. Their “RemoteVision MX” is a software “video capture card” package that enables a user to view remote locations through their PC over a telephone line. Similarly, Novex Canada&#39;s “Video Catcher Plus” (“VC+”) is a home security package that includes software, 4 alarms, 4 video cameras and a small device that plugs into the serial port of a home PC. The video cameras and the alarms are connected to the computer through the device. A user of the VC+ can connect to their PC from a remote computer through a conventional modem/PSTN connection to view video feeds. The VC+ allows for viewing of up to 4 videos on one screen simultaneously. Also, the VC+ is enabled with motion detection such that recording can be automatically started only if and when a motion is detected. 
     Companies such as Cannondale have recently employed a web-based system enabling managers to view production work as described by James E. Gaskin, “Cyberspace Goes Blue-collar”, Inter@ctive Week, Aug. 19, 1998. As discussed in the Gaskin article, Weyer Haeuser not only uses web-based remote cameras to view the production floor, but has supplemented remote monitoring using net-cams to view dials and meters of production equipment. However, these web-based systems suffer from the same shortcomings as closed-circuit television systems. In particular, there currently is no way for a property owner to effectively monitor his premises without prohibitively escalating his costs or to test the attentiveness of those monitoring his premises. 
     SUMMARY OF INVENTION 
     The problems identified above are solved and a technical advance is achieved in the art by providing, in accordance with the present invention, a system and method for a central server to manage remote monitoring tasks. 
     A method for a central server to manage remote monitoring tasks according to one embodiment of the present invention includes: receiving a request from a user of a user device to monitor a remote location; determining a remote location to be monitored; enabling communication between a sensor at the remote location and the user device; and crediting value to the user for monitoring the remote location in accordance with an amount of time the user device has been in communication with the sensor for remote monitoring purposes. 
     A method according to an alternate embodiment of the present invention includes: receiving a request from a user of a user device to monitor a remote location in exchange for value; determining a remote location to be monitored; enabling communication between a sensor at the remote location and the user device; and measuring user attentiveness while the user device is in communication with the sensor. Many other advantageous embodiments are also disclosed. 
     Thus, one embodiment of the present invention is directed to a commerce-based system and method that enables members of the general public who have access to a data network such as the Internet to log on at any time and perform remote monitoring tasks for value. In accordance with one aspect of the present invention, a user account is credited with value in accordance with the amount of time a user spends monitoring remote locations. Moreover, little or no skill is required of the user short of his remaining attentive during a remote monitoring session. Thus, the idle time of unskilled workers, as well as the underutilized idle time of even highly skilled workers, can now be turned into value in accordance with the present invention. 
     An alternate embodiment measures user attentiveness. In one such embodiment, an inattentive user is penalized by automatically replacing him with another user and preventing him from participating in remote monitoring tasks in the future. Thus, location owners can rest assured that their properties are being diligently monitored while they are away without having to incur excessive costs associated with hiring security guards (e.g., providing them with uniforms, benefits, etc.). 
     Another aspect of the present invention includes taking precautions to maintain anonymity of the locations being monitored. Anonymity is advantageous because the present invention allows individuals who are not guaranteed to be trustworthy to monitor private property over a public network (e.g., rather than requiring any pre-screening of users, one embodiment of the present invention simply relies upon user attentiveness to determine whether a user will be permitted to continue to participate in remote monitoring tasks). Without taking precautions to maintain anonymity, an unscrupulous individual knowing the location&#39;s identity could study its characteristics to plan a crime. Thus, in one embodiment of the present invention, users are not provided with the identity of the remote location being monitored and, indeed, affirmative measures are taken to prevent the user from ascertaining the identity of the location. 
     Further aspects of the present invention will become apparent during the course of the following description and by reference to the attached drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a block diagram illustrating one embodiment of the system of the present invention. 
         FIG. 2  is a block diagram illustrating one embodiment of the central server of the present invention. 
         FIG. 3  is a block diagram illustrating an exemplary user device. 
         FIG. 4  illustrates an exemplary user database. 
         FIG. 5  illustrates an exemplary task database. 
         FIG. 6  illustrates an exemplary session status database. 
         FIG. 7  illustrates an exemplary database of user performance testing rules. 
         FIGS. 8A and 8B  are flow-charts illustrating an exemplary process of the monitoring session program executed by the central server of the present invention. 
         FIG. 9  is a flow chart illustrating an exemplary emergency procedure executed by the central server of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     Referring now to the drawings, wherein like reference numerals refer to like parts,  FIG. 1  illustrates one embodiment of the present invention wherein users of a data network such as the Internet can “log on” to a web site and monitor one or more remote locations in exchange for value. 
     As shown in  FIG. 1 , a central server  200  is coupled to a plurality of remote location sensor devices  100 a-c and a plurality of user devices  300 a-c. Central server  200  may be a high bandwidth web server of the type commonly operated by Internet service providers. User devices  300 a-c may be personal computers and/or televisions coupled to the Internet (e.g., WebTV). Location sensor devices  100 a-c may comprise digital/analog video cameras, digital/analog audio microphones, motion detectors, pressure sensors, thermal sensors, laser and/or light sensors, radar, sonar and other sensing devices well known to those skilled in the art. It is to be understood that any number of user devices and sensor devices may be coupled to the central server  200 . 
     In one embodiment of the present invention, the central server  200  may be operated and maintained by an Internet service provider (ISP), such as America Online™. The ISP receives payment from entities (e.g., banks, retail stores, private home owners, etc.) desiring their locations to be monitored by one or more of the ISP&#39;s users. For example, Fleet Bank may offer to pay the ISP $6.00 per hour to have a user monitor a Fleet branch remotely over the Internet. The ISP in turn advertises this opportunity to its users at the stated rate (i.e., $6.00 per hour) less a service fee (e.g., 25% of the quoted rate of $6.00 per hour). After a user has logged on and completed the remote monitoring task, the ISP bills Fleet Bank at the stated rate and pays or credits the user for their time at the stated rate less the service fee. 
     To monitor remote locations for value, users initially register with the central server  200  and receive a user identifier. After registering, users can simply present their user identifier to central server  200  when logging on for assignment of a remote monitoring task. Remote monitoring tasks include a task identifier and a shift (e.g., a date and/or a time period). Central server  200  assigns the remote monitoring task taking into account predetermined rules specified by the location owner, such as a predetermined number of users required to monitor the remote location simultaneously and/or a minimum user rating. In accordance with one aspect of the present invention, users are rated based on their attentiveness during monitoring sessions, as will be discussed in detail hereinafter in connection with  FIG. 8 . 
     In addition, a number of precautions are preferably taken by central server  200  to maintain anonymity of the location being monitored. Anonymity is typically advantageous since the present invention allows individuals who are not guaranteed to be trustworthy to monitor private property over a public network. These precautions are discussed in detail hereinafter in connection with  FIG. 8  and include preventing the user from monitoring a location that is within a predetermined distance of the user&#39;s home address. At a minimum, the identity of the physical location assigned for monitoring is not revealed to the user. In the prior art remote video surveillance systems discussed above, anonymity was not important, or even practical, because those systems were designed for private usage. 
     At the start of the shift, central server  200 , enables communication between the location sensor devices  100 a-c and the user devices  300 a-c. As previously indicated, a location may be monitored by a plurality of users simultaneously. During the shift, central server  200  takes steps to measure, encourage and/or enforce user attentiveness, as will be discussed in detail hereinafter in connection with  FIG. 8 . One method of measuring user attentiveness includes transmitting test communications to the user device and receiving responses to the test communications within a predetermined period of time. If a predetermined number of responses to test communications are not received within the time specified, the user&#39;s rating is lowered and communication between the location sensor device(s) and the user device may consequently be disabled. In addition to lowering the user&#39;s rating, the user can be further penalized as discussed in detail hereinafter in connection with  FIG. 8 , including preventing future monitoring by the user. However, if communication between the user device and the remote sensor device(s) has not been disabled due to inattentiveness, at the end of the shift, central server  200  credits value to the user&#39;s account for performing the monitoring task as will be discussed in detail hereinafter. 
     At the time a user is assigned the remote monitoring task, he is also provided with emergency procedures to be followed in the event that the user detects an emergency at the remote location during his shift. If a signal is received by the user device from the central server  200  and the user interprets that signal to indicate an emergency at the remote location, central server  200  will determine whether the reported emergency is legitimate in the manner discussed in detail hereinafter in connection with  FIG. 8 . If legitimate, central server  200  will transmit an output request to an emergency dispatch service corresponding to the sensor location. Alternatively, the emergency procedure provided to the user includes the phone number of the emergency dispatch service (i.e., a service geographically corresponding to the remote location) and thus, upon detection of an emergency, the user can contact the emergency dispatch service himself. 
       FIG. 2  depicts a block diagram of an exemplary central server  200  maintained and operated, e.g., by an Internet service provider. The central server  200  performs all the operations of a conventional server maintained and operated by an Internet service provider and performs additional operations in accordance with the present invention. The central server  200  includes a CPU  205  coupled to a ROM  210 , RAM  215  and system clock  207 . The CPU  205  is also coupled to the location sensor devices  100 a-c and the user devices  300 a-c via a communications port  220 . As shown in  FIG. 2 , the CPU  205  is also coupled to a data storage device  225 . Of course, CPU  205  may comprise a plurality of processors working in conjunction. 
     Data storage device  225  includes a variety of databases including a user database  230 , a task database  240 , a session status database  245 , and a user performance testing rules database  250 . The user database  230  of data storage device  225  contains user information. The task database  240  contains information concerning remote monitoring tasks. The session status database  245  contains information concerning the status of remote monitoring tasks. The user performance testing rules database  250  contains testing rules for remote monitoring tasks. Each of these databases will be discussed in detail hereinafter in conjunction with  FIGS. 4-7 . Storage device  225  further includes a monitoring session program  260  executed by CPU  205  to manage remote monitoring tasks in accordance with the present invention. The monitoring session program  260  will be discussed in detail hereinafter in connection with  FIGS. 8 and 9 . 
       FIG. 3  is a block diagram illustrating an exemplary user device  300 . In one embodiment, the user device can be a personal computer, which includes a CPU  305  coupled to ROM  310 , RAM  315  and system clock  320 . The CPU  305  is coupled to a variety of input devices  325  and output devices  330 . The input devices  325  may include one or more of the following: a mouse, a keyboard, a monitor with “touch screen” capability, and a microphone. The output devices  330  may include, for example, a monitor and/or a speaker. The device  300  also includes a communications port  335  for accessing a data network  340  such as the Internet. 
       FIG. 4  illustrates an exemplary user database  230 , which records information concerning users who have registered to log on to the central server of the present invention to monitor remote locations in exchange for value. As previously indicated, when a user first requests to monitor a remote location, a record for the user is established in the user database  230 . For each record, the user database  230  includes a user identifier field  410 , a user rating field  420 , and an account balance field  430 . 
     The user identifier field  410  of user database  230  contains a user identifier such as a password, a PIN number, a credit card number, or a telephone number provided by the user, or some other identifier assigned to the user by the central server  200 . The user rating field  420  contains a user rating generated by central server  200  based on the user&#39;s past performance during remote monitoring sessions. Lastly, account balance field  430  is a running account (e.g., a financial account) of the value credited to the user in exchange for performing remote monitoring tasks. 
       FIG. 5  illustrates an exemplary task database  240  which preferably stores specific information for each remote monitoring task. When a location owner instructs the operator of server  200  (e.g., an ISP) to have its location monitored remotely by one of the ISP&#39;s users, a record for the remote monitoring task is established in the task database  240  in accordance with information provided to the ISP by the location owner. For each record, the task database includes a task identifier in field  505  (assigned by the ISP), the geographic location of the remote sensor in field  510  (e.g., Fleet Bank, Hamden, Conn. Branch), the electronic address of the remote sensor in field  515  (e.g., www.fleetbank.com/branch3/cam1), and the owner of the location in field  520  (e.g. Fleet Corporation, Hartford, Conn.). Each record also includes the pay rate associated with monitoring the location in field  525 , any rules that must be satisfied prior to monitoring the location in field  530  (e.g., more than 3 users), the shift(s) during which the location is to be remotely monitored in field  535  and the emergency procedures to be followed in the event that the user detects an emergency condition at the remote location in field  540  (e.g., click the emergency button on the ISP frame). Lastly, each record also contains an indication in field  545  of the availability of the remote monitoring task (i.e., whether or not user(s) are still needed to perform the task). 
       FIG. 6  illustrates an exemplary session status database  245 , which maintains status information for each shift of a remote monitoring task. For each task and shift identified by the task identifier in field  605  and shift in field  610 , the session status database  245  includes the user identifier(s) in field  615  (as indicated above, more than one user may monitor the same location), the status of the shift in field  620 , and the performance results of the user(s) in responding to test communications in field  625 . As shown in  FIG. 6 , if the shift of the remote monitoring task has not yet commenced, the entries in fields  620  (“Status”) and  625  (“Performance Results”) will contain the indication “Not Available” (“N/A”). 
       FIG. 7  illustrates an exemplary user performance testing rules database  250 . The user performance testing rules database  250  includes a plurality of records each associated with the user testing rules for a particular task. Each record includes fields for a task identifier in field  705 , a test communication in field  710 , test communication intervals in field  715 , the required response time in field  720 , and the required response in field  725 . 
     The test communication field  710  in database  250  contains the test communication to be transmitted to the user during the remote monitoring task (e.g., staged emergencies, questions, etc.). Field  715  contains the frequency at which the test communication is to be transmitted to the user (e.g., random, periodic, etc.). Field  720  contains the time in which the user is required to respond to the test communication (e.g., 10 seconds). Lastly, field  725  contains the required user response to the test communication (e.g., click 911 button). 
       FIGS. 8A and 8B  are flow-charts illustrating an exemplary process of the monitoring session program  260  executed by central server  200 . Users preferably “register” with the operator of the central server  200  to perform remote monitoring tasks. Registration may take place on-line, by phone, by mail, or in-person. At the time of registration, central server  200  assigns the user a user identifier (if one is not supplied by the user) and then creates a record for the user in user database  230  (if one has not already been created). As shown in  FIG. 4 , the record will contain the user identifier in field  410 . However, the user rating in field  420  will contain a “Not Available” entry or the like and the account balance in field  430  will be “$0.00” if the user has not yet performed a remote monitoring task. If registration occurs on-line, the user may either remain on-line for assignment of a remote monitoring task, or log off and then log back on at a later time to request an assignment. 
     Turning to  FIG. 8A , in step  800 , central server  200  receives a request from a user of the data network to monitor a remote location. The request may include the user identifier previously assigned to the user. In step  805 , the central server  200  accesses task database  240  and identifies a remote monitoring task for assignment to the user. This includes determining an appropriate task identifier (e.g., “12345”) and shift (e.g., 1/1/98 and/or 12:00 AM-3:00 AM). In an alternate embodiment, the user is not assigned a shift. Rather, the user can log on for assignment of a remote monitoring task at any time and end the remote monitoring session (i.e., log off) at any time. As a precondition to logging off without negatively impacting the user&#39;s rating, sever  200  may require that an alternate user be available to continue monitoring the remote location. (As discussed in detail below, the present invention can notify a back-up user to replace an original user.) 
     The process of identifying a remote monitoring task may take into account the predetermined rules in field  530  of task database  240  specified by the location owner (e.g., a minimum user rating required for a user to be assigned a particular location). The process may also take into account user-specified preferences concerning the assigned shift. In addition, the process preferably includes taking precautions to maintain anonymity of the location being monitored. Without such precautions, an unscrupulous user knowing the location&#39;s identity could study the location&#39;s characteristics, such as its traffic patterns, to plan a crime. For example, central server  200  may prevent the user from monitoring a location that is within a predetermined distance from the user&#39;s physical location (as determined by reference to zip codes or modern navigation methods such as GPS). Alternatively, central server  200  may prevent the user from monitoring the location more than a predetermined total number of times, or from monitoring the location during a predetermined time of day if the user has previously monitored the location a predetermined number of times during that time of day. In yet another embodiment, central server  200  may randomly change the user&#39;s assigned location during the user&#39;s shift. In summary, it is desirable that central server  200  not provide the user with the identity of the remote location to be monitored and take affirmative steps to prevent the user from ascertaining the identity of the location. 
     Once a task identifier and shift has been assigned to the user, central server  200  communicates them to the user together with the emergency procedure specified in field  540  of task database  240  for reporting emergencies at the remote location. In step  810 , the central server  200  establishes a record for the user in session status database  245 . Rather than creating a new record for the user, the user identifier may be added to a previously established record. For example, a location may be monitored by a plurality of users and at least one user of the plurality of users may have already been assigned the location and thus a corresponding record may have already been established in session status database  245 . The record in session status database  245  includes the task identifier in field  605 , the shift in field  610  and the user identifier in field  615 . The status in field  620  and the performance results in field  625  may contain a “Not Available” entry or the like, until commencement of the remote monitoring session. 
     It is to be understood that often it may be impractical for the user to remain in communication with central server  200  until the start time of the shift (e.g., the user may be logged on in the early morning and the assigned shift does not begin until mid-afternoon) In such instances, the user may log off after receiving the task identifier and shift, and then log on to central server  200  at a time closer to the start of the shift. When logging back on, the user preferably provides the user identifier, task identifier and shift to assist central server  200  in identifying which remote monitoring task in session status database  245  the user is logging on to perform (e.g., the user may be assigned more than one remote monitoring task). Central server  200  may also transmit a reminder to the user via e-mail or telephonically (i.e., a voice call) prior to the start of the shift. 
     At a predetermined period of time prior to the start of the shift, central server  200  in step  815  determines whether the rules in field  530  of task database  240  corresponding to the task identifier and shift assigned to the user have been satisfied. For example, the rules may require a minimum number of users (and/or users of a particular rating) for the remote monitoring task to commence. Moreover, the number of assigned users and/or the user ratings of those users may have changed since the user was initially assigned the task identifier and shift requiring a re-evaluation in light of the rules in field  530  of database  240 . If the rules in field  530  have been satisfied then in step  820  central server  200  uses the sensor address in field  515  of task database  240  to enable communication between the location sensor device(s) and the user device at the start of the shift. Central server  200  also updates the status in field  620  of the appropriate record in session status database  245  from “Not Available” to “In Progress”. It is to be understood that the communication between the location sensor devices and the user devices can be video-based and/or audio-based. If only audio-based, a “speakerphone” setting on the user device is used to monitor sounds at the remote location. 
     As previously described, a location may be monitored in accordance with the present invention by a plurality of users simultaneously. In such instances, the present invention can deter “bystander inaction syndrome”. Bystander inaction syndrome is a sociological behavioral pattern that emerges when several people simultaneously witness an emergency, but each person assumes that someone else will notify the authorities. The present invention prevents this behavioral pattern in several ways. In one embodiment, central server  200  simply does not inform the user that anyone else is monitoring the location. In another embodiment, central server  200  informs the user that he is the only user monitoring the remote location. In either case, the user is instilled with the belief that if he does not report the emergency, it will not be reported at all. In an alternate embodiment, central server  200  informs the user whenever an emergency is reported by another user at the location the user is monitoring. In this manner, when an emergency occurs, the user knows whether anyone else has reported it yet and can act accordingly. In some of the embodiments discussed hereinafter, central server  200  imposes penalties for false positives or inattentiveness and/or pays bonuses for the detection of legitimate emergencies. Thus, in those embodiments, users are economically motivated to report legitimate emergencies. 
     Continuing with  FIG. 8A , central server  200  in step  825  uses the task identifier to access the corresponding record in the user performance testing rules database  250 . At the test communication intervals specified in field  715 , central server  200  transmits the test communication specified in field  710  of the record to the user device to measure user attentiveness. In a first embodiment, the test communication comprises a randomly transmitted predetermined video of a fabricated emergency. In a second embodiment, the test communication comprises one or more questions communicated to the user, for example, by e-mail. 
     In an alternate embodiment, central server  200  monitors a biometric reading from the user at the remote device to measure user attentiveness. For example, the user device may be equipped with a retinal scanner similar to those being developed for ATM machines. The retinal scanner would then take random, periodic or continuous readings to determine whether the user is watching the video stream from the remote location on his screen. In yet another alternate embodiment, the user device is equipped with a video camera. Other users can then log on to central server  200  and be assigned the remote monitoring task of monitoring another user monitoring a remote location. Once inattention is detected, central server  200  may also enforce attention by causing an audible alarm to be transmitted to the user. The alarm may grow progressively louder until the user responds to the alarm. 
     Whereas the foregoing embodiments function to detect and deter inattention, other embodiments function to encourage attentiveness. In one embodiment, for example, central server  200  randomly transmits to the user an offer to enter the user in a sweepstakes. In another embodiment, entertainment video is transmitted to the user at random times and/or for random durations. Since the user cannot predict when the next transmission of entertainment video will occur, he will be encouraged to remain attentive to await the next transmission. 
     In step  830  of  FIG. 8A , central server  200  determines whether a response to the test communication was received within the response time specified in field  720 . If a predetermined number of responses (which may be recorded in RAM  215  for the duration of the shift) are not received within the time specified in field  720 , then in step  835  central server  200  penalizes the user by adjusting the user&#39;s rating in user database  230  in accordance with predetermined criteria, and thereafter disables communications between the location sensor device(s) and the user device. In addition to adjusting the user&#39;s rating, central server  200  may penalize the user by not paying him for the remote monitoring session, paying him less than the pay rate specified in field  525  of task database  240 , imposing a charge upon the user (i.e., deducting a predetermined amount from the account balance in field  430  of user database  230 ), and, in an extreme case, preventing the user from participating in remote monitoring tasks in the future. In one embodiment, if central server  200  determines that the user is inattentive, a back-up user can be notified to replace the original user. The back-up user can then log-on and monitor the location for the remainder of the original user&#39;s shift. Such an embodiment is particularly well suited to situations in which the operator of central server  200  is an ISP, since the ISP can actively monitor all current users that utilize the ISP for Internet related services. Thus, the ISP can recruit users to perform remote monitoring tasks for value (e.g., by transmitting offers to registered users of the ISP). 
     If a response was received within the specified time, central server  200 , in step  840  of  FIG. 8B , evaluates the response to determine whether it was the response specified in field  725  of the user performance testing rules database  250  (e.g., click 911). If the test communication transmitted to the user comprises a question, the evaluation in step  840  includes determining whether the user responded with the expected answer. In step  845 , central server  200  updates the user&#39;s rating in database  230  in accordance with predetermined criteria and, if the user&#39;s shift is not over (step  850 ), the process returns to step  825 . As discussed above, the ratings can be used when determining whether to assign a user a particular remote monitoring task and it is envisioned that users with higher ratings will be assigned higher paying tasks (e.g., a bank may be willing to pay more than a homeowner to have a location remotely monitored). At the end of the shift, in step  850 , the central server  200  uses the task identifier to access the corresponding record in the session status database  245  and update the entry in field  625  (“Performance Results”) to reflect the user&#39;s performance in responding to test communications. Alternatively, the user&#39;s performance may be continuously or periodically updated during the shift. 
     Finally, in step  855 , central server  200  credits the user&#39;s account balance in field  430  of user database  230  in accordance with the pay rate and shift duration specified in fields  525  and  535  respectively of task database  240 . Various payment schemes are contemplated. For example, the pay rate may incorporate such criteria as the time of day (e.g., a user may be paid more to monitor a location between the early morning hours of 2:00 AM and 5:00 AM), whether the user is monitoring two or more locations simultaneously (e.g., a user may be paid more to monitor two or more locations at the same time), the criminal history of the community in which the sensor is located (e.g., a user may be paid more to monitor locations whose zip codes correspond to communities having statistically higher crime rates or, alternatively, more users may be assigned to higher crime areas), and/or the number of users simultaneously monitoring the remote location (e.g., the user may be paid less if more than one user is monitoring the same location). If the operator of central server  200  is an ISP, the user may be provided with discounted or free Internet access if the user monitors the location for a predetermined amount of time during the billing cycle. The ISP may also submit sweepstakes entries or other positive rewards on the user&#39;s behalf for each predetermined period of time spent monitoring a location (e.g., one entry for each x minutes spent monitoring). Those skilled in the art will appreciate that many types of services may be granted to the user in exchange for performing remote monitoring tasks. In addition, bonuses may be paid for each legitimate emergency detected by the user. 
     In an alternate embodiment, the user operates a different program (e.g., a word processor) in a different window on the user device  300 a-c while maintaining communication with the sensor device(s)  100 a-c via central server  200  using a web browser. In this embodiment, the sensor device includes a video camera and a motion detector. Rather than, or in addition to, detecting motion at the remote location, the sensor device may be equipped to detect other events such as a predetermined level of light intensity (e.g., a bright light illuminating a dark area) or static (e.g., resulting from the sensor having been disabled). In response to a signal from the central server indicative of a predetermined event having been detected by a sensor device, the user device preempts the program being operated by the user to immediately display the video data received from the video camera. The user can then review the displayed video data to determine whether an emergency has occurred at the remote location. Thus, in accordance with one aspect of the present invention, a user can receive value for passively monitoring a remote location while working on an entirely different project. 
     In yet an alternate embodiment, rather than enabling communication between sensor devices  100 a-c and user devices  300 a-c via the Internet, central server  200  causes the video/audio data stream received from sensor devices  100 a-c to be transmitted to user devices  300 a-c via a dedicated television channel of a wireless or cable television system. The user can then monitor the video/audio data on the user device, which, in this embodiment, is preferably a television set. In addition, if the user device includes a picture-in-picture feature, the user can employ this feature to monitor the video data while watching a program on another television station. In these embodiments, a user can submit a request to monitor a remote location via an interactive television set or, via his telephone by calling the operator of central server  200 , if his television does not include an interactive feature. In an alternate embodiment, in addition to a video camera, the sensor device(s)  100 a-c include detectors for detecting predetermined events (e.g., a predetermined level of motion, sound, light intensity, etc.) at the remote location. When a predetermined event is detected by the sensor device, a signal indicative of the predetermined event is transmitted from the central server to functionality in the television set via the wireless or cable television system. In response to the received signal, the functionality in the television set preempts the television program currently being watched by the user to display the video/audio data received from the video camera (e.g., the television will change channels to the dedicated television channel). Alternatively, the functionality in the television set may simply display a visual alert to the user to manually change channels to the dedicated television channel. In these embodiments, functionality in the television set may also cause an audible alarm to be issued to inform the user that a predetermined event has been detected at the remote sensor. Thus, the user may engage in other activities, such as household chores, while monitoring a remote location in exchange for value. 
       FIG. 9  is a flow chart illustrating an exemplary emergency procedure executed by the central server  200  of the present invention. In step  900 , central server  200  receives a signal from the user device indicating an emergency at the remote location corresponding to the sensor address of the current monitoring session. In step  905 , central server  200  determines whether the reported emergency is in response to a test communication and, if not, whether the reported emergency is legitimate. In one embodiment, if the reported emergency is not in response to a test communication, central server  200  will immediately communicate the video feed of the remote location to other users who will verify that an emergency has occurred. In a second embodiment, central server  200  will contact an emergency dispatch service only if a threshold number or percentage of users have reported the emergency. If the emergency is not legitimate, central server  200 , in step  910 , lowers the user&#39;s rating in user database  230  in accordance with predetermined criteria. If, however, the reported emergency is legitimate, central server  200 , in step  915 , transmits an output request to an emergency dispatch service corresponding to the sensor location in field  510  of task database  240 . Alternatively, central server  200  communicates to the user the phone number of the emergency dispatch service corresponding to the geographic location of the sensor. Upon detecting an emergency, the user contacts the emergency dispatch service himself. 
     The many features and advantages of the present invention are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the invention which fall within the true spirit and scope of the present invention. 
     Furthermore, since numerous modifications and variations will readily occur to those skilled in the art, it is not desired that the present invention be limited to the exact construction and operation illustrated and described herein, and accordingly, all suitable modifications and equivalents which may be resorted to are intended to fall within the scope of the claims.

Technology Category: 3