Patent Publication Number: US-2023162310-A1

Title: Systems and methods for electronic signature tracking

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation of co-pending U.S. patent application Ser. No. 17/546,334, filed Dec. 9, 2021, which claims benefit of U.S. Provisional Patent Application No. 63/125,557, filed Dec. 15, 2020. 
     INCORPORATED BY REFERENCE 
     The disclosures of U.S. patent application Ser. No. 17/546,334, filed Dec. 9, 2021, and Provisional Patent Application No. 63/125,557, filed Dec. 15, 2020, are incorporated by reference herein for all purposes as if set forth in their entireties. 
    
    
     TECHNICAL FIELD 
     In one aspect, the present disclosure is directed to surveillance systems and methods, and more specifically, to surveillance systems and methods that facilitate collection and correlation of electronic signatures and/or visual identifiers. Other aspects also are described. 
     BACKGROUND 
     Automated License Plate Readers (“ALPR”) typically are used for identifying vehicles in selected locations, e.g., for detecting traffic violations, collecting tolls, etc. . . . . However, existing ALPR systems are quite expensive and generally are used for identification of vehicles on roads, in parking lots, other vehicle throughways, etc. . . . . Such existing systems further generally are not used for identification and/or tracking of persons separate from their vehicles. In addition, these systems may have difficulty determining who is driving or is a passenger in any given vehicle. 
     It can be seen that a need exists for surveillance systems and methods that can be used in conjunction with or in place of existing ALPR systems to provide for more precise, reliable, and/or consistent identification or tracking of vehicles, as well as persons associated with, and not associated with, vehicles. 
     The present disclosure is directed to the foregoing and other related, and unrelated, problems in the relevant art. 
     SUMMARY 
     Briefly described, the present disclosure includes surveillance systems and methods for collecting and correlating electronic signatures and/or visual identifiers to build intelligence databases that can facilitate tracking and associating indicators of common location and movement of targets throughout selected geographic areas or locations. Targets generally refer to persons, vehicles, e.g., an automobile, or both, such a one or more persons within a vehicle. However, targets can include other objects, such as one or more electronic devices, e.g. cell phones or other communication devices, RFID and other sensors or transmitting devices internal to vehicles or as after-market additions, and/or various other, similar devices, without departing from the scope of the present disclosure. 
     According to some aspects, a surveillance system is provided, which is capable of utilizing a variety of electronic signal sensors as standalone collections systems or in conjunction with ALPR systems (including new and existing ALPR systems in the field) to capture and catalogue electronic signals, such as radio frequency (RF), Bluetooth® and other signals from various types of electronic devices, as events that occur in proximity to these sensors substantially in real time. The system generally will capture the identifying information in such collected signals/transmissions as electronic signatures and catalogue them in a database with certain identifying characteristics, such as, but not limited to, location data such as geographical coordinates, time stamps, signal or device source manufacturer data, source type and unique ID, etc., allowing these captured events/electronic signatures to become unique, identifiable and searchable. The system will include programming, including one or more developed correlation and search engines, configured to evaluate and combine singular detected events with other catalogued events to develop correlated information related to the intersection of multiple defined electronic signatures (generated or developed from captured events) that occurred at a specific time and geographical location or area. In embodiments, the electronic signal sensors will be used in conjunction with ALPR systems in areas, allowing the surveillance system to develop a subset of electronic signals associated with a license plate read at a moment in time and identified or recorded location. Once the surveillance system has collected records correlating electronic signatures associated with a license plate, the surveillance system can be enabled to thereafter detect a likely presence of a vehicle and its associated license plate at an identified location, with or without the use of a camera. Furthermore, if placed in locations not associated with vehicular traffic, the surveillance system will be able to identify, and catalogue known electronic signatures away from the vehicles with which they have typically been associated. 
     According to aspects of the present disclosure, a surveillance system can include a plurality of collection systems or assemblies each located at selected geographic areas or locations. The collection systems generally are configured to capture or facilitate collection of information related to visual identifiers and/or electronic signatures associated with targets in or moving about the selected areas/locations. 
     In some embodiments, the collection systems can include at least one sensor configured to collect or otherwise capture information related to visual identifiers and/or electronic signatures of targets. The visual identifiers can include visual vehicle identifiers, such as license plate information or other visual or imaged information associated with vehicles (e.g., stickers, patterns, position(s) of component parts, after-market added parts, damage, and/or various other markings, etc. . . .) that can be used to distinguish or otherwise identify, detect or discern a target vehicle, etc. . . . . The electronic signatures can include an electronic signal or combination(s) of electronic signals emanating from transmitting electronic devices and which are associated with and/or can uniquely identify the targets in or moving about the selected areas/locations. 
     In addition, in some aspects, the surveillance system can include an intelligence system that is in communication with the plurality of collection systems. The intelligence system is configured to receive the information collected or captured by the collection systems (e.g., data points or packets of time and date stamped information in real time when targets get within proximity of the collection point systems), and to identify and/or track the targets based on this received information. 
     In embodiments, the intelligence system can include one or more classification and search engines and an intelligence database in communication therewith. The one or more classification and search engines can be configured to identify or extract the electronic signatures associated with the targets using the information collected by the collection systems and catalogue them in the intelligence database with certain identifying characteristics (e.g., geographical coordinates, time stamps, source manufacturer, source type and unique ID, etc.) allowing these identified electronic signatures to become unique, identifiable, and searchable. 
     The surveillance system thus is configurable to track, map, catalogue, etc., movements of the targets in real time as electronic signals emanating therefrom occur in proximity to the collection systems. The tracking information generated can be used to help confirm and/or authenticate a potential target identification, and further can be configured to generate alerts or notifications when certain targets are in proximity to the collection systems. 
     The one or more classification and search engines can infer relationships between electronic devices and targets based on consistency of correlation to identify/extract electronic signatures associated with targets. 
     For example, the one or more classification and search engines can use frequency and consistency of electronic signals to determine the relative certainty of association of the transmitted electronic devices and targets to develop electronic signatures of the targets. That is, if the relative certainty or probability that a certain electronic signal or combination of electronic signals are associated with a target meets a prescribed threshold, the one or more classification and search engines can identify an electronic signal or combinations of electronic signals as a specific electronic signature associated with that target. 
     The one or more classification and search engines can be configured to filter or otherwise alter to the received electronic signatures, e.g., to reduce signal noise and facilitate identification or extraction of unique, identifying electronic signatures. 
     In embodiments, the one or more classification and search engines can be configured to locate receipt of a visual identifier and correlated electronic signature to track the target. 
     In addition, or in the alternative, the one or more classification and search engines will be configured to associate identifying electronic signatures with visual identifiers, such as a visual vehicle identifier, to allow independent tracking and location identification of targets based on the associated identifying electronic signatures. That is, once the system has records correlating electronic signatures associated with a specific visual vehicle identifier, e.g., a specific license plate number, the intelligence system will be able to detect the likely presence of a vehicle and its associated license plate without visual information, e.g., without the use of a camera. 
     Furthermore, the collection systems can be placed in locations or areas not associated with vehicular traffic, such that the intelligence system will be able to identify, and catalogue known electronic signatures away from the vehicles they have typically been associated with, e.g., for tracking, mapping, etc. of persons or electronic devices apart from vehicles. 
     In embodiments, the at least one sensor of each collection system can include a plurality of sensor assemblies. The sensor assemblies can include one or more cameras or camera systems configured to capture or facilitate collection of information related to vehicle identifiers, such as visual information related to a license plate of a vehicle or other visual vehicle identifiers. 
     In addition, the sensor assemblies can include one or more antennas or other signal receivers configured to capture information related to the electronic signatures. The one or more antennas can include a plurality of antennas, such as a Bluetooth® antenna, a Wifi antenna, a RFID antenna, or other RF antennas or combinations thereof, configured to capture information related to electronic signals associated with the targets. 
     In some embodiments, the collection systems can be used in conjunction with Automated License Plate Readers (“ALPR”) in certain areas, allowing the intelligence system to develop a subset of electronic signals, i.e., an electronic signature, associated with a license plate read at a moment in time and location. Electronic data points from less expensive collectors can then be used to provide more precise tracking than ALPR alone. 
     In some embodiments, the surveillance system can be configured to capture sample electronic signature information from a target, associate that information with the target&#39;s identification, and then search for or alert on receipts of similar electronic signature information at one of the collection point systems. 
     In additional embodiments, the surveillance system can be configured to allow for search inquiries or scans of suspect&#39;s electronic signatures to search known location data points in the database history, placing the suspect at those locations and times. 
     In still other embodiments, the surveillance system can be configured to allow for labeling of specific electronic signatures with a target and then alert or search for history of those specific electronic signatures in the database, placing the target at various locations. 
     In further embodiments, the surveillance system further can indicate or determine changes in association or travel of suspects or other individuals of interest based on variations in electronic signatures associated with a target or targets. 
     Various objects, features, and advantages of the present disclosure will become apparent to those skilled in the art upon a review of the following detail description, when taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       It will be appreciated that for simplicity and clarity of illustration, elements illustrated in the Figures are not necessarily drawn to scale. For example, the dimensions of some elements may be exaggerated relative to other elements. Embodiments incorporating teachings of the present disclosure are shown and described with respect to the drawings herein, in which: 
         FIGS.  1 A- 1 B  are schematic diagrams of a surveillance system according to the present disclosure. 
         FIG.  2    is a schematic diagram of an example collection point system of the surveillance system of  FIGS.  1 A- 1 B . 
         FIGS.  3 A- 3 G  show exemplary screen shots of an interface of a surveillance system according to  FIGS.  1 A- 1 B . 
         FIG.  4    is a flow diagram illustrating operation of a surveillance system according embodiments of the present disclosure. 
     
    
    
     The use of the same reference symbols in different drawings indicates similar or identical items. 
     DETAILED DESCRIPTION 
     The following description in combination with the Figures is provided to assist in understanding the teachings disclosed herein. The description is focused on specific implementations and embodiments of the teachings, and is provided to assist in describing the teachings. This focus should not be interpreted as a limitation on the scope or applicability of the teachings. 
       FIGS.  1 A- 1 B  provide a schematic diagram of an example embodiment of a surveillance system  10  for collecting and correlating electronic signatures and visual identifier information to build intelligence databases that facilitate tracking and associating indications of common location and movement of targets  11  throughout selected geographic areas or locations. 
     As indicated in  FIGS.  1 A- 1 B , the surveillance system  10  includes a plurality of collection systems  12  or assemblies that are located at selected geographic areas or locations. The collection systems  12  generally will be configured to capture or facilitate collection of information related to visual identifiers and/or electronic signatures associated with targets  11 . The targets  11  generally will include persons  30 , vehicles  22 , or a combination of both in and/or moving about the selected areas or locations. Targets  11  also can include transmitted electronic devices or other objections, without departing from the scope of the present disclosure. The collection systems  12  can be positioned at various locations or collection points about a specific geographic area, e.g., a municipality, county, other public or private areas, or combinations thereof (see  FIGS.  3 A- 3 B ). 
       FIGS.  1 A- 1 B  show an embodiment wherein each collection system  12  includes a sensor or sensor assembly  16  configured to collect or otherwise capture the information related to visual identifiers and/or electronic signatures of targets  11 . The sensor or sensor assembly  16  accordingly can include one or more cameras or camera systems  18  configured to capture or facilitate collection of information related to vehicle identifiers, such as visual or imaged information related to a license plate  20  of a vehicle  22  and/or other visual vehicle identifiers that can be used to discern, detect and/or otherwise identify or confirm the identity of a target vehicle. For example, in some aspects, such vehicle markings can include, but are not limited to, signage, stickers, bumper stickers, non-license plate tags, patterns, position or configuration of component parts, damage to the vehicle, such as scratches, dents, repair marks, etc. and the location thereof on the vehicle, small markings or symbols or other indicia on vehicle components, as well as various other identifiable visual markings, or combinations thereof). In some embodiments, the camera system  18  also can include an Automated License Plate Reader (“ALPR”) integrated or otherwise associated with a collection system  12 , or the surveillance system  10  can include ALRPs in addition to, or in place of, one or more collection systems  12 . 
     In addition, or in the alternative, the at least one sensor or sensor assembly  16  also can include an antenna, antenna array, or plurality of antennas  24  configured to capture or otherwise receive electronic signals from transmitting electronic devices  26  associated with the targets  11  for identification/extraction of electronic signatures. The at least one sensor or sensor assembly  16  can include additional sensors, such as IR sensors or other light sensors, without departing from the present disclosure. 
     The transmitting electronic devices  26  include, but are not limited to, transmitting electronic devices associated with a vehicle, such as vehicle components including, but not limited to, tire pressure sensors or other manufacturer installed or after-market vehicle sensors, vehicle stereo or entertainments systems, vehicle navigation systems, vehicle infotainment systems, self-driving or driver assist vehicle guidance systems, vehicle Wifi hotspots, other components of internal or external vehicle systems, etc. . . . ; and additionally can include transmitting electronic devices associated with persons  30  or other types of targets, including, but not limited to, cellular phones and/or other communication devices, tablets, laptops, smart watches, fitness trackers, wireless headphones, RFID tags (e.g., key cards, library books, assets tags, pallet transmitters, pet collars), Wifi hot spots, and other personal electronic devices. Each sensor or sensor assembly  16  is configured to capture or collect signals transmitted by or otherwise emanating from the transmitting electronic devices  26  when the targets  11  get within proximity of the collection systems  12 . The collection systems  12  can be configured to receive signals at a prescribed or selected proximity in relation thereto. For example, in some embodiments, the collection systems could be configured to look for and receive signals transmitted within about 200 feet of the collection systems  12 ; while in other embodiments, such as to reduce or limit extraneous noise or to help filter such noise, shorter ranges of signals also can be used, i.e. in some locations, the collections systems can be configured to receive signals transmitted within about 100 feet of the collection systems  12 , and in still other embodiments or locations, signals transmitted within about 50 feet of the collection systems  12 . Other, varying ranges also can be used. 
     In addition, the surveillance system  10  includes an intelligence system  40  that is in communication with the plurality of collection systems  12 . The intelligence system  40  is configured to receive information collected or captured by the collection systems  12  and to identify and/or track targets  11  based on this received information. The intelligence system  40  can be in wireless communication with the collection systems  12 , e.g., through a public or private network using Wifi, cellular, etc. . . . . In addition, or in the alternative, the intelligence system  40  and one or more of the collection systems  12  can be connected through one or more wired connections. In this regard, when targets  11  come within proximity of the collection systems  12 , the collection systems  12  will collect visual information and/or electronic signal information associated with the targets  11  and transmit data points or packets  38  of information, e.g., time and location stamped information, related to collected visual and/or electronic signal information to the intelligence system  40 . The collection systems  12  can be configured to transmit data points or packets  38  substantially simultaneously or generally in real time when targets  11  come within proximity to the collection systems  12 . For example, the collection systems  12  can send a data point including information corresponding to each electronic signal or visual identifier as it is captured or can send a data packet including information corresponding to multiple electronic signals or visual identifiers received. In addition, or in the alternative, the collection systems  12  can transmit the data points or packets  38  at specific time intervals, such as every few seconds, minutes, hours, etc. or at other times or intervals after the electronic signals or visual identifiers are captured, without departing from the scope of the present disclosure. 
       FIGS.  1 A- 1 B  further show that the intelligence system  40  will include programming, including a correlation and search engine  42  and an intelligence database  44 . The correlation and search engine  42  is configured to identify or extract electronic signatures associated with the targets  11  using collected visual and/or electronic signal information at the collection systems  12 . For example, the correlation and search engine  42  is configured to ingest or process the data points/data packets  38  to associate or correlate the visual identifiers with the received electronic device signals to facilitate the identification or extraction of electronic signatures identifying the targets  11 . The electronic signatures can include information related to the collected electronic signals of the transmitting electronic devices  26  or combinations of collected electronic signals of the transmitting electronic devices  26  that uniquely identify the targets  11 . For example, and without limitation, a combination of one or more signals from a plurality of transmitting electronic devices (e.g., a watch, cell phone/communication device, headphones, etc.) can include an electronic signature that uniquely identifies a person; a combination of one or more signals from a plurality of transmitting vehicle components (e.g., a vehicle sensor, infotainment system, etc.) can include an electronic signature that uniquely identifies a vehicle, or one or more signals from a transmitting electronic device can include an electronic signature that uniquely identifies that electronic device. 
     The correlation and search engine  42  further can be configured to filter or otherwise alter the received electronic signatures (or information related thereto) to reduce or diminish signal noise and facilitate identification or extraction of unique, identifying electronic signatures. For example, the correlation and search engine  42  can apply filtering (e.g., linear or non-linear filters, dynamic noise reduction, etc.) to collected electronic signals to diminish, reduce, or substantially eliminate stationary and variable noise and other values that cannot be usefully correlated with targets  11 , allowing unique electronic signal values to be extracted or identified. 
     In addition, the correlation and search engine  42  is configured to catalogue the electronic signatures in the intelligence database  44  with specific identifying characteristics allowing these identified electronic signatures to become unique, identifiable, and searchable. The identifying characteristics can include, but are not limited to, geographical coordinates, time stamps, source manufacturer, source type and unique ID, etc. . . . . The correlation and search engine  42  also can be configured to build catalogs or groupings of independent data points/data packets  38  in the intelligence database  44  that allow correlation analysis to show what otherwise anonymous or non-unique electronic signals consistently appear with the targets  11 . The surveillance system  10  thus can identify, track, map, catalogue, etc., the presence and/or movements of the targets  11  in real time as electronic signals emanating therefrom occur in proximity to the collection systems  12 . The surveillance system  10  further can generate alerts or notifications when certain targets  11  are in proximity to the collection systems  12 . Still further, the surveillance system  10  further allows for the searches or queries of the intelligence database  44 , e.g., for investigating locations or movements of suspects or other persons of interest. 
     In embodiments, the correlation and search engine  42  can use algorithms, models, etc., to infer relationships between transmitting electronic devices  26  and targets  11  based on consistency or likelihood of correlation of the visual identifiers and electronic signals of the transmitting electronic devices. For example, the correlation and search engine  42  can be configured to evaluate and combine singular collection events at the collection systems  12  with other catalogued events in the intelligence database  44  to develop correlated information related to the intersection of multiple collected/captured electronic signals that occurred at a specific time and geographical area or location. And, the correlation and search engine  42  can use the frequency and/or consistency of electronic signals received at collection systems  12  to determine the relative certainty of association of the transmitting electronic devices  26  and targets  11  to develop electronic signatures for the targets  11 . 
     The correlation and search engine  42  can be programmed to determine a likelihood or probability that a specific electronic signal or combination or set of electronic signals is associated with a target  11 , and if the determined likelihood or probability meets a prescribed/selected likelihood or probability threshold, the engine  42  will identify and/or extract an electronic signal or combinations of electronic signals as an electronic signature or electronic signatures to be associated with that target  11 . In one embodiment, the likelihood or probability threshold can be about 70% or more (e.g., above 75%, above 80%, above 85%, above 90%, above 95%, above 98%, etc.) that a signal or combination/set of signals is associated with a particular target  11 . 
     In some embodiments, the correlation and search engine  42  can be configured to determine or identify a location at which a visual identifier and correlated electronic signature are matched to enable tracking and/or verification of targets  11  at such a location. In addition, or in the alternative, the correlation and search engine  42  can be configured to associate identifying electronic signatures with visual identifiers, such as a visual vehicle identifier, to allow independent tracking and location identification of targets  11  based on the associated identifying electronic signatures. For example, once the correlation and search engine  42  has records correlating electronic signatures associated with a specific visual vehicle identifier, e.g., a specific license plate number, the correlation and search engine  42  will be able to detect the likely presence of a vehicle  22  and its associated license plate  20  without visual information, e.g., without the use of a camera. Furthermore, the collection systems  12  can be placed in locations or areas not associated with vehicular traffic, such that the intelligence system will be able to identify, and catalogue known electronic signatures away from the vehicles  20  they have typically been associated with. 
     In this regard, in embodiments, the collection systems  12  can be used in conjunction with existing ALPRs in certain areas or locations, allowing the intelligence system  10  to develop a subset of electronic signatures associated with a license plate read at a moment in time and location. For example, one or more collection systems  12  can be positioned near or in close proximity to an existing ALPR to allow for correlation or association of received electronic signals with license plate reads at or near an identified location. In addition, or in the alternative, an existing ALPR can be modified or retrofitted to include components of the collection point systems to enable collection of electronic signals with license plate reads. Further, in some embodiments, collection systems  12  with or near cameras  18  or ALPRs can be used in connection with collection systems  12  without cameras or ALPRs, as generally indicated in  FIGS.  1 A- 1 B . As a result, electronic data points  38  from less expensive collection systems  12  can be used to provide more precise tracking than ALPR alone. That is, the lower cost collection systems  12  can increase collection density of potential identifying data beyond the collection of ALPR or camera records, enabling data from both collection system  12  types to be combined (e.g. the target identifying ALPR data collected can be supplemented with additional target data such as an electronic signature or other identifying information) to provide more detailed intelligence and increased accuracy of verification or authentication of possible targets, including providing monitoring personnel (e.g. law enforcement, security or other personnel) with an increased level of confidence of locations of potential criminals, stolen or other vehicles of interest. 
     Additionally, or alternatively, collection systems  12  without cameras (or with cameras) can be positioned in areas or locations that cannot be accessed by a vehicle, such as on trains, near railways, around public buildings, etc., to enable collection of electronic signals from persons away from their vehicle, e.g., for cataloguing, tracking, mapping, etc. . . . positions or movements thereof. 
     The intelligence system  40  generally includes one or more processors, controller&#39;s, CPUs, etc., and one or more memories, such as RAM, ROM, etc., in communication with the one or more processors. The collection and search engine  42  can include computer programming instructions stored in the one or more memories that can be accessed and executed by the one or more processors to facilitate execution of the processes thereof, e.g., correlation of information, identification and tracking of the targets  11 , searching of the intelligence database  44 , etc. . . . . 
       FIG.  2    shows an example collection system  12 . As indicated in  FIG.  2   , the sensor or sensor assembly  16  of the collection system  12  is a plurality of sensor assemblies including one or more cameras or camera systems  18  and an antenna assembly  24 . The one or more cameras or camera systems  18  generally are configured to capture or facilitate collection of information related to license plates  20  of vehicles  22 , such as image, video, or other visual information from which a license plate number or other license plate information (e.g., state, registration information, etc.) can be extracted or otherwise identified, e.g., using optical character recognition (“OCR”) or other character or feature recognition process. In some embodiments, a collection point system  12  will include an Automated License Plate Reader (“ALPR”) configured to capture license plate information. 
     Additionally, as indicated in  FIG.  2   , the antenna assembly  24  is configured to capture or otherwise receive a plurality of different electronic signal types, such as Bluetooth®, Wifi, RFID, or other radio frequency (“RF”) signals. Specifically, the antenna assembly  24  has a plurality of antennas including a Bluetooth® antenna  50 , a Wifi antenna  52 , a RFID antenna  54 . However, the antenna assembly  24  can include other RF antennas or other antennas configured to capture or receive other signal types or combinations thereof, without departing from the scope of the present disclosure. Still further, in other embodiments, infrared (IR), bar-code, and/or other types of scanning or signaling devices also can be used. 
       FIG.  2    also shows a vehicle  22  with a plurality of transmitting electronic devices  26  associated therewith, including a vehicle Bluetooth® tire pressure monitor  56 , a navigation system  58 , and a vehicle Bluetooth® interface  60  (e.g., as part of a vehicle infotainment system). A person  30  in the vehicle  20  is carrying or otherwise has a plurality of transmitting electronic devices  26 , including a Bluetooth® smart watch  62 , a smart phone  64 , an RFID access card  66 , and wireless headphones  68 . Accordingly, when the vehicle  20  comes within the prescribed proximity to the collection point system  12 , the camera  18  will capture visual information associated with the vehicle  20 , e.g., the license plate number “ABC1234”. The plurality of antenna&#39;s  24  further can capture or otherwise receive electronic signals emanating from the transmitting electronic devices  26  associated with the vehicle  20  (i.e., the vehicle Bluetooth® tire monitor  56 , a navigation system  58 , and a vehicle Bluetooth® interface  60 ) and the person  30 &#39;s associated transmitting electronic devices  26  (i.e., a Bluetooth® watch  62 , a smart phone  64 , an RFID access card  66 , and wireless headphones  68 ). 
     The collection system  12  then will transmit a plurality of data points  38  to the intelligence system  40  each including information related to the captured electronic signals and the time, date, and location at which they were collected. For example, as  FIG.  2    indicates, the data points  38  can include the captured visual information, e.g. the license plate number, with the associated time, date, and location information of collection, the captured electronic signal information, including but not limited to, device manufacturer, device type, signal type, etc., with the associated time, date, and location information of collection, etc. The location information can include geographic information, such as GPS or other coordinates, and additionally or alternatively, can include information identifying the collection point system  12  that collected the visual and/or electronic signal information. 
     The correlation and search engine  42  can process the information from the received data points or data packages to correlate the received signal information with the visual information to develop electronic signatures uniquely identifying the vehicle  20  or the person  30  in the based on the received electronic signals or combinations thereof, and also can populate the intelligence database  44  with the signature information identifying the vehicle  20  or person  30 . Operators then can search or query the intelligence database  44 , e.g., using a user interface  100  as shown in  FIGS.  3 A- 3 G , for identification, mapping, tracking, etc., of the vehicle  20  and person  30 . 
     In some embodiments, the surveillance system  10  can be configured to capture an electronic signature and associated information from a target  11 , and can associate such electronic signature and associated information with the target&#39;s identification, e.g., license plate number or other visual identifier, with the correlation and search engine  42 , and then allow searches for or provide alerts or notifications on receipts of similar electronic signature information at one or more of the collection systems  12 . 
     For example, the surveillance system  10  can be configured to allow for search inquiries or scans of one or more specific electronic signatures associated with a target  11 , which can include a suspect or person of interest, and to provide search results including known location data points in the intelligence database  44 , placing the suspect at those locations and times. The search results can include maps or other images  102  showing the collection systems  12  that captured electronic signals associated with the one or more electronic signatures searched, e.g., indicating the selected target&#39;s presence or movements about a prescribed location or area ( FIGS.  3 A- 3 B and  3 G ). 
     In addition, or in the alternative, the search results can include groupings or listings  104  of search results associating the one or more electronic signatures searched with information related to the collection systems  12  which captured electronic signals associated with the one or more electronic signatures searched ( FIGS.  3 C and  3 G ). The grouping or listing  104  can include images captured (e.g., images of the person, vehicle, vehicle license plate, etc.), temporal information (e.g., the date and time the visual or signal information was collected), the visual identifier (e.g., license plate number), location information (e.g., GPS coordinates, state, city, etc.), information identifying the collection point system, statues of the collection (e.g., normal read, error, etc.), etc. . . . 
     In other embodiments, the surveillance system  10  can be configured to allow for labeling or other associating of specific electronic signatures with a selected target or targets and then alert or search for history of those specific electronic signatures in the intelligence database, placing the selected target(s) at more locations than ALPR alone. For example, an investigator can determine an electronic signature or electronic signatures that are associated with a target  11 , e.g., using readings of electronic signals from transmitting electronic devices possessed by suspect taken into custody or other capture of electronic signals from a suspect&#39;s transmitting electronic devices. The investigator then can input the electronic signatures (or information related thereto) associated with the target(s) into the surveillance system  10  to determine which collection systems  12  captured those signatures, e.g., to establish a verifiable record/proof that the suspect or others were at or near a crime scene and/or show other incriminating movements or locations of the suspect, such as a location or movements patterns useful for tracking the commission of a crime. Investigators further can input specific time periods or ranges, and the surveillance system  10  can provide listings of electronic signatures or visual identifiers received at various collection systems  12  within the inputted time period/range or can provide maps or other images showing movements of targets  11  within the inputted time period based on their electronic signatures received at the collection systems  12 . By use of such a system, investigators potentially can be aided in reducing or narrowing a pool of suspects, aiding their investigations. 
     In addition, the surveillance system  10  can generate an alarm or alert when the specific electronic signature(s) is captured at one or more of the collection point systems  12  to alert of the presence of the target(s)  11  at or near the collection point system(s)  12 . The alarm or alert can be provided to the operator of the surveillance system  10  and/or local authorities, e.g., law enforcement or other third parties. In some embodiments, the target  11  can be selected based on a specific criteria associated with the target  11 , e.g., arrest warrant, Amber or Silver Alert, expired registration, immigration violation, etc. . . . , and when the labeled electronic signatures are collected at one or more of the collection systems  12 , the proper authorities can be notified. 
     The surveillance system  10  further can be configured to perform convoy searches or analyses that indicate transmitting electronic devices, i.e., based on their electronic signatures, which typically travel with a vehicle license plate, as generally indicated in  FIGS.  3 D- 3 F . For example, as  FIGS.  3 D- 3 F  show, the surveillance system  100  may provide listings of electronic signatures that are commonly associated with a target&#39;s license plate. An investigator may perform searching on one or more of the associated electronic signatures apart from the target&#39;s license plate to pick up locations a target may have traveled when the license plate was not read, e.g., to expand the search of a particular target&#39;s movements apart from a vehicle, to pick up location data for a vehicle with a license plate may have been tampered with or otherwise is unreadable/not read. For example, an investigator may have noticed that a particular vehicle&#39;s license plate has been picked up 20 times and 19 of those 20 times a particular, unique RFID electronic signature also was received, so the surveillance system  10  allows the investigator to look for where else the unique RFID electronic signature was received, e.g., to be able to track a person in places that did not read or pick up their vehicle&#39;s license plate to expand the investigation. 
     In still further embodiments, the surveillance system  10  further can indicate or determine changes in association or travel of suspects based on variations in electronic signatures associated with a target. For example, based on unique electronic signatures, the surveillance system  10  can indicate whether particular individuals are or were traveling with a particular vehicle or vehicles, which can allow investigators to determine whether suspects were actually in a vehicle at a particular time. In addition, the surveillance system  10  can indicate whether the sought after individual or third party by standers are in a vehicle or other structure based on the electronic signatures associated therewith. 
       FIG.  4    illustrates a method for operating the surveillance system  10  according to an embodiment of the present disclosure. Unless otherwise specified, the actions of method  400  may be completed within a controller computing device, processor, or other component of the surveillance system. The method illustrated in  FIG.  4    also may be implemented in other systems and/or computing devices as will be understood by those skilled in the art. In addition, method  400  may be included in one or more programs, protocols, or instructions loaded into the memory of the surveillance system and executed by the controller computing device or by a processor or one or more processors of the surveillance system. The order in which the operations are described is not intended to be construed as a limitation, and any number of the described blocks may be combined in any order and/or in parallel to implement the methods. 
     As discussed above, the surveillance system will include a plurality of collection systems. Each of the collection systems can include a sensor, camera, or other device capable of determining whether a target is in proximity to the surveillance system, and capturing identifying information for such target. Each of the collections systems further will be located at a known or selected location (e.g. at known GPS coordinates) and, as indicated at  402 - 406 , if a target is detected to be within range of one or more collection systems the collections systems will capture identifying information associated with the target and will transfer such captured identifying information for each such target detected to the controller computing device or other controller of the surveillance system. 
     As indicated at blocks  402  and  406 , each collection system will search for targets coming within a range of detection thereof. Each of the collection systems can make such a determination of a target coming within its range of detection based on various visual identifiers (e.g. Automated License Plate Reader captures of vehicle plates, make &amp; model, or other visual identifiers), or based on capture of electronic signals defining one or more electronic signatures associated with each target. One or more collection systems can be located in proximity to each other such that a target can be identified by captured visual indicators, by electronic signature(s), or a combination thereof. For example, as indicated at block  402 , a visual ID collection system (e.g. an ALPR system) will search for targets coming within its range of detection, and if a target is found to be/come in range, a visual identifier of the target will be captured as shown in block  404 . In an embodiment, such a capture may include a picture, photo, image, or other action which records a visual identifier of a target. The target, in such examples, may include a vehicle or person. Once the collection system captures the visual identifier, the collection system may transfer the capture to the surveillance system. 
     If a target is not in range of the visual ID collection system, or after the visual identifier is captured, the surveillance system may determine whether a device is in range of an additional collection system, such as an electronic signal collection system, as indicated at block  406 . The electronic signal collection system may include an antenna or other means for detecting different types of electronic signals. For example, the antenna may detect a Wifi or Bluetooth signal. In such examples, the simple detection of such signals may be sufficient to indicate that a target or device is in range and corresponding electrical signal may be captured. 
     At block  408 , if the device is within range of the electronic signal collection system, the electronic signal collection system will capture one or more electronic signals emanating from the target or an electronic device with the target, which signals will be used to define the electronic signature of the target or target device. In an embodiment, the collection system may transmit a request to the target device and store the corresponding response or relevant data within the response as an electronic signature (e.g., the electronic signature including data describing or identifying the device). In another embodiment, the detected signal from the device may include relevant information. As such, the collection system may detect the signal and then store the signal from the device in the surveillance system. In another embodiment, the collection system may parse and/or transmit relevant data from such a signal to the surveillance system. 
     At block  410 , the surveillance system may identify targets by the one or more electronic signature. The surveillance system may analyze the captured data in relation to different targets and/or devices. The surveillance system may determine based on time, proximity, and number of occurrences whether a device is associated with a target and, in some examples, identify the target. In other words, the surveillance system may utilize a number of found electronic signatures typically associated with a particular target to identify that particular vehicle. 
     At block  412 , the surveillance system will correlate visual identifiers to the electronic signature of the target. The surveillance system may review or analyze the visual identifiers and electronic signatures captured at particular times, places, and/or proximity to the collection system. Based on such captured data, the surveillance system may associate one or more of the captured electronic signatures with a particular target. For example, a set of Bluetooth headphones may be detected at a particular time and place every day. Further, a vehicle&#39;s identifying patterns (e.g., stickers, dents, etc.) may be captured at that same particular time and place. As such, the surveillance system may generate an indicator to be stored along with the captured electronic signature and the capture vehicle identifier. The indicator may indicate that the headphones are associated with that particular vehicle. 
     At block  414 , the surveillance system may determine targets of interest. Many (e.g., hundreds or thousands) signals and images may be captured over a short period of time. Many of these data points may not be relevant or may be of targets which are not of interest. The surveillance system may identify a target of interest from such daily gathered data based on known target identifiers (e.g., license plate number or identifying marks on a vehicle on a stolen or watch/hot list). The data related to a target of interest may be stored and saved for potential analysis, while the remaining data may be deleted or not stored in the surveillance system. 
     At block  416 , the surveillance system further will monitor the plurality of collection systems for captured signals or images associated with identified targets of interest. The surveillance system will receive additional data points from collection systems at other known or selected locations for detection of such identified targets of interest at such additional locations. Movement of such targets of interest between a series of known locations can be determined both in real-time, and to develop a historical record of such movements. In an embodiment, the surveillance system may include a number of targets of interest. The surveillance system may track each over a particular period of time or otherwise. 
     The foregoing description generally illustrates and describes various embodiments of the present disclosure. It will, however, be understood by those skilled in the art that various changes and modifications can be made to the above-discussed construction of the present disclosure without departing from the spirit and scope of the disclosure as disclosed herein, and that it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as being illustrative, and not to be taken in a limiting sense. Furthermore, the scope of the present disclosure shall be construed to cover various modifications, combinations, additions, alterations, etc., above and to the above-described embodiments, which shall be considered to be within the scope of the present disclosure. Accordingly, various features and characteristics of the present disclosure as discussed herein may be selectively interchanged and applied to other illustrated and non-illustrated embodiments of the disclosure, and numerous variations, modifications, and additions further can be made thereto without departing from the spirit and scope of the present disclosure as set forth in the appended claims.