# US 12,118,869 B2 · Gas sensing device designed for environmental decontamination with simultaneous alert emission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,118,869 B2 - Document ID: US12118869B2 - Status: Granted - Kind: B2 - Application number: 18/304,322 - Filed: 2023-04-20 - Published: 2023-08-10 - Granted: 2024-10-15 - Earliest claimed: 2020-01-22 - Applicants: José Marcos Nabhan; Vinicius Batistela Nicoletti - Inventors: José Marcos Nabhan; Vinicius Batistela Nicoletti - Web page: https://patentgrep.com/patent/US12118869B2 ## CPC - G08B 21/14: Toxic gas alarms (G08B21/16 takes precedence) - B60H 1/008: {the input being air quality} - B60H 1/00978: {Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods} - B60H 1/00985: {Control systems or circuits characterised by display or indicating devices, e.g. voice simulators (characterised by the input of sound using a voice synthesizer B60H1/00757; B60H1/00978 takes precedence)} - G01R 31/382: Arrangements for monitoring battery or accumulator variables, e.g. SoC - G08B 5/38: using flashing light - G08B 21/028: {Communication between parent and child units via remote transmission means, e.g. satellite network} - G08B 21/0415: {detecting absence of activity per se} - G01R 31/007: {using microprocessors or computers} - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) ## Abstract Breathing naturally produces CO2, which means that the presence of people or animals inside the passenger compartment of a vehicle can be detected. In the presence of at least one occupant, in as little as five minutes, the concentration of carbon dioxide can become dangerous. To remediate high concentrations of carbon dioxide within the passenger compartment, a warning is provided that instructs any occupant to start the vehicle. Should the vehicle not be started within a predetermined period of time after the warning, certain automatic remediation actions are taken, provided that the battery of the vehicle retains enough power to start the vehicle. If the automatic remediation actions fail to lower the levels of carbon dioxide, then all available power is utilized to reduce the levels of carbon dioxide and to bring assistance to the occupants of the vehicle. ## Claims ### Claim 1 A method for remediating high concentrations of carbon dioxide within the passenger compartment of a vehicle, said method comprising: monitoring carbon dioxide levels within said passenger compartment using a carbon dioxide sensor; providing a warning within said passenger compartment that instructs any occupant of said vehicle to start said vehicle, should said carbon dioxide levels surpass a predetermined threshold; automatically opening at least one window of said vehicle should said vehicle not be started within a predetermined period of time after said warning. ### Claim 2 (depends on 1) The method according to claim 1, further including transmitting an alarm message to a remote smart device should said carbon dioxide levels surpass said predetermined threshold. ### Claim 3 (depends on 1) The method according to claim 1, wherein said vehicle has a battery and said method includes monitoring power available from said battery. ### Claim 4 (depends on 3) The method according to claim 3, further including determining if said battery has power in surplus of what is needed to start said vehicle. ### Claim 5 (depends on 4) The method according to claim 4, further including automatically operating a ventilation fan in said vehicle should said vehicle not be started within said predetermined period of time after said warning and should said battery have power in surplus of what is needed to start said vehicle. ### Claim 6 (depends on 5) The method according to claim 5, wherein said vehicle has doors that lead to said passenger compartment, and wherein said doors are automatically unlocked should said ventilation fan run beyond a preselected run time and said carbon dioxide levels remain above said predetermined threshold. ### Claim 7 (depends on 5) The method according to claim 5, wherein said vehicle has lights and wherein said lights automatically flash should said ventilation fan run beyond said preselected run time and said carbon dioxide levels remain above said predetermined threshold. ### Claim 8 A method for remediating high concentrations of carbon dioxide within the passenger compartment of a vehicle that has a battery, said method comprising: monitoring power available from said battery; monitoring carbon dioxide levels within said passenger compartment using a carbon dioxide sensor; providing a warning within said passenger compartment that instructs any occupant of said vehicle to start said vehicle, should said carbon dioxide levels surpass a predetermined threshold; automatically performing some remedial measures to reduce said carbon dioxide levels should said vehicle not be started within a predetermined period of time after said warning and should said battery contain power in surplus of that needed to start said vehicle. ### Claim 9 (depends on 8) The method according to claim 8, wherein said remedial measures are selected from a group consisting of: partially opening at least one window, activating at least one ventilation fan, and sending an alert to a computing device that is remote from said vehicle. ### Claim 10 (depends on 8) The method according to claim 8, further including performing at least one emergency measure to reduce said carbon dioxide levels should said vehicle not be started within said predetermined period of time after said warning and should said battery not contain power in surplus of that needed to start said vehicle. ### Claim 11 (depends on 10) The method according to claim 10, wherein said at least one emergency measure is selected from a group consisting of: partially opening at least one window, activating at least one ventilation fan, sending an alert to a computing device that is remote from said vehicle, flashing lights on said vehicle, sounding a horn of said vehicle, and unlocking doors of said vehicle.