Abstract: Various embodiments of the present invention provide systems and methods for detecting chemicals. As an example, a system is disclosed that includes a chemical sensor, a processor, and a computer readable medium. The computer readable medium includes instructions executable by the processor to: receive a plurality of outputs from the chemical sensor; calculate a baseline value using the plurality of outputs from the chemical sensor; and report an event when the baseline value is exceeded.

Abstract: Various embodiments of the present inventions are related to monitoring physical location of a monitored target, but not limited to, use of beacon location information.

Abstract: Various embodiments of the present invention provide systems and method for collision avoidance. As an example, a system for collision avoidance is disclosed that includes: a first monitoring device, a second monitoring device, and a monitoring system. The monitoring system is operable to: receive information from the first monitoring device and the second monitoring device, identify a first zone around the first monitoring device and a second zone around the second monitoring device, and identify an intersection of the first zone and the second zone.

Abstract: Various embodiments of the present invention provide systems and method for monitoring movement in relation to locations about which data is available from one or more sources.

Abstract: Various embodiments of the present inventions are related to monitoring physical location of a monitored target, but not limited to, use of beacon location information.

Abstract: Various embodiments of the present invention provide systems and methods for detecting chemicals. As an example, a system is disclosed that includes a chemical sensor, a processor, and a computer readable medium. The computer readable medium includes instructions executable by the processor to: receive a plurality of outputs from the chemical sensor; calculate a baseline value using the plurality of outputs from the chemical sensor; and report an event when the baseline value is exceeded.

Abstract: Various embodiments of the present invention provide systems and methods for detecting chemicals. As an example, a system is disclosed that includes a chemical sensor, a processor, and a computer readable medium. The computer readable medium includes instructions executable by the processor to: receive a plurality of outputs from the chemical sensor; calculate a baseline value using the plurality of outputs from the chemical sensor; and report an event when the baseline value is exceeded.

Abstract: Various embodiments of the present invention provide systems and method for behavior determination. As an example, a system for behavior determination is disclosed that includes: a first monitoring device, a second monitoring device, and a monitoring system. The monitoring system is operable to: receive information from the first monitoring device; receive information from the second monitoring device; identify at least a first zone around the first monitoring device; identify at least a second zone around the second monitoring device; and characterize an intersection of the first zone and the second zone.

Abstract: Various embodiments of the present invention provide systems and method for collision avoidance. As an example, a system for collision avoidance is disclosed that includes: a first monitoring device, a second monitoring device, and a monitoring system. The monitoring system is operable to: receive information from the first monitoring device and the second monitoring device, identify a first zone around the first monitoring device and a second zone around the second monitoring device, and identify an intersection of the first zone and the second zone.

Abstract: Various embodiments of the present invention provide systems and method for adaptive monitoring of physical movement. As one example, a method for adaptive initialization of a monitoring system is discussed. The method includes associating a monitor device with a monitor target; receiving information indicating movement of the monitor target from the monitor device; plotting or defining one or more paths corresponding to the movement of the monitor target during a learning period; and based at least in part on the one or more paths, identifying one or more exclusion zones where movement of the monitor target is restricted.

Abstract: Various embodiments of the present invention provide alcohol monitoring devices, and methods for using such. As one example, an alcohol monitoring device is disclosed that includes a device body, an alcohol sensor, and a liquid cartridge. The alcohol sensor is associated with the device body, and relies on a liquid supply to perform an alcohol measurement on a subject. The liquid cartridge is replaceably coupled to the device body and provides the liquid supply to the alcohol sensor.

Abstract: Various embodiments of the present invention provide tracking devices and systems, and methods for using such. As one example, a method for locating a individual monitoring device is disclosed that includes determining a discard status of an individual monitoring device, identifying a location of the individual monitoring device, uploading the location of the individual monitoring device to a monitoring system via a wireless communication link, entering a low power state of the individual monitoring device, receiving a wake-up signal from a mobile transmitter, and transmitting a human identifiable location signal.

Abstract: Various embodiments of the present invention provide alcohol monitoring devices, and methods for using such. As one example, an alcohol monitoring device is disclosed that includes a device body, an alcohol sensor, and a liquid cartridge. The alcohol sensor is associated with the device body, and relies on a liquid supply to perform an alcohol measurement on a subject. The liquid cartridge is replaceably coupled to the device body and provides the liquid supply to the alcohol sensor.

Abstract: An Electronic House Arrest Monitoring (EHAM) system of the present invention includes a transmitter attached to a monitored offender and a receiver positioned in the vicinity of the desired monitoring location. The transmitter and the receiver each have a pattern stored or generated therein for determining the interval of time between signal transmissions and receptions. The pattern is pseudo-random to offer improved protection against imposter transmitters, in other words the time intervals are selected to be unequal and randomly varying but the pattern is repeated or cycled to allow continuing signal transmission by the transmitter. The transmitter transmits signals at varying time intervals according to this pattern, and the receiver authenticates signals it receives as coming from the monitored transmitter based on the expected time intervals from the pattern.

Abstract: An EHAM system consists of a central monitoring system (CMS), a field monitoring device (FMD), an electronic detection circuit that generates a detection signal upon the occurrence of a predetermined event, e.g., the absence of the monitored individual from a monitoring location, and a communications network. The communications network consists of at least one communications link wherein a fee-based communications mode may be used. The CMS is installed at a central monitoring location, the FMD is installed at the monitoring location, and the electronic detection circuit is attached or otherwise coupled to the individual to be monitored at the monitoring location. The occurrence or non-occurrence of the predetermined event is detected during a prescribed reporting time period. Regular or random communications are established between the FMD and CMS during the reporting time period to inform the CMS about the occurrence or non-occurrence of the predetermined event.

Abstract: A supervisory system and method automatically tracks and reports the status, e.g., current address, employer, telephone number, etc., of a group of enrollees, and automatically collects a fee for such service. Each enrollee "reports in" to a host CPU of the system in accordance with a specific contact schedule, e.g., once a month, through a fee-based telephone network that automatically charges a prescribed toll fee to the originating telephone number whenever telephone contact remains established for more than a preamble time period. The host CPU, using individual calling line identification (ICLID) information included in the incoming telephone call, identifies the telephone number of the incoming call and determines if it belongs to an enrollee of the system. If not, the incoming call is disconnected before the preamble time period expires, thereby preventing the incoming caller from being charged the toll fee.

Abstract: A wearable tag for use with an electronic house arrest monitoring (EHAM) system, or equivalent, is held against a limb of its wearer by a lockable strap. The tag includes tamper detection circuitry for detecting any attempt to remove the tag by cutting or breaking the strap, even when such cutting occurs in the presence of an electrolyte. The strap has a conductor imbedded therein that is in electrical contact, through known resistances, with respective terminals on the tag. The tamper detection circuit detects any change in the resistance of the strap. Further, the terminals are made of, or coated with, dissimilar metals, so that should the tag be immersed in an electrolyte, and the strap cut, the resulting galvanic action between the terminals allows the cut strap to be detected.

Abstract: A field monitoring device (FMD) for use in an electronic house arrest monitoring (EHAM) system has an infrared (IR) communications port concealed in the back of its housing. A strain relief fixture for the power cord covers the IR port during normal FMD operation. This strain relief fixture is removable only with a special tool. The IR port includes two small holes. Inside one hole is an infrared receiver. Inside the other hole is an infrared transmitter. Data communications with the FMD is established by optically linking a matching infrared receiver included in a coupling head of an IR adapter with the infrared transmitter within the FMD; and by similarly optically linking a matching infrared transmitter with the infrared receiver within the FMD. The IR adapter interfaces with a conventional data terminal, such as a personal computer, which data terminal functions as an external programmer for the FMD.

Abstract: A sealed, locked housing for an electronic transmitter tag includes a transmitter assembly (20), a battery pack (24), a strap (22), and means for lockably securing the strap and battery pack to the transmitter assembly. The transmitter tag, in a preferred embodiment, is intended for use with a house arrest monitoring system. The transmitter assembly (20) includes a first sealed compartment (54) wherein electronic circuitry (56) is housed. This circuitry transmits signals that uniquely identify the tag and that signal the occurrence of a sensed tamper event. The transmitter assembly also includes a second compartment (25), open to a top side of the assembly, into which the battery pack may be sealably inserted. The means for lockably securing the strap to the transmitter assembly include rails (30, 32) selectively attached to the strap at a desired length. These rails are slidably inserted into open ends of respective keyed channels (31, 33) along each side of the assembly.