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1017 results about "Field based" patented technology

System and Methods for Linking Multiple Events Involving Firearms and Gang Related Activities

Methods for linking multiple events involving firearms submit event information data and firearms information data to a system that includes a database for multiple firearms events and generate a query map that correlates data in the system database with a preselected geographical grid based upon one or more preselected matching criteria to one or more data entries for a selected event. The map is used to generate a request for a possible link analysis which may be initiated by a firearms examiner and is then performed to determine if there is a link. The event information data can include a case number, a geographical location data entry, a date entry, a crime type, a weapon involved and a suspect information data field based upon input from an investigating officer while the firearms information data can include a weapon data entry and a bullet data entry based upon input from a person with firearms examiner training. The methodology can be used to prioritize multiple requests for a possible link analysis based upon information obtained in one or more query responses and the query response can display at least some of its information in a query map that correlates data in the system database with a preselected geographical grid. One or more gang database modules allow users to execute searches of a gang database and plot incidents on a geographic grid with each incident being represented by a unique icon related to a class of crime or type of incident.
Owner:EDWARDS ROCKY L +1

High-sensitivity magnetic measurement device in environment field based on disturbance compensation and realization method thereof

The invention discloses a high-sensitivity magnetic measurement device in an environment field based on disturbance compensation and a realization method thereof. In the method, the low-frequency disturbance compensation in an environment magnetic field is realized by a second feedback branch and a second magnetic flux locking loop, wherein the second feedback branch is composed of a second integrator, a low-pass filter, a second feedback resistor and a feedback coil; and the second magnetic flux locking loop is formed based on the second feedback branch. A super-magnetic conduction sensor established based on the method can realize the high-pass response frequency characteristics for the environment field and the low-pass response frequency characteristics for the circuit noise at the same time, ensures the suppression of the influence of environment field disturbance on SQUID (superconducting quantum interference device) magnetic measurement without influencing the weak signal measurement, and avoids the overflow phenomenon. Based on the super-magnetic conduction sensor, the method is suitable for the application environment in which the frequency of the magnetic field signal tobe measured is higher than the disturbance frequency band (DC-30Hz) of the environment field.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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