46 results about "Carbon dioxide monitor" patented technology

A breathing circuit is described for the supplying of low pressure oxygen to a patient that is at risk of hypoxia. The breathing circuit includes a patent airway maintaining device, a first tube that includes a substantially rigid elbow and connectors and a flexible tubular extension. An inflatable bag is coupled to the first tube and has a pressure relief valve that exhausts into the atmosphere. A second tube has a first end that terminates in proximity to the patent airway maintaining device and a second opposed end that terminates external to the first tube. A third tube connects an external source of oxygen to the second tube. A method for an oxygen breathing circuit is also described that further includes the use of a carbon dioxide monitor and the inflatable bag for assisted breathing. The breathing circuit uses only non-metallic polymer or composite type materials.

The invention relates to a soil carbon dioxide concentration monitoring device and method. The soil carbon dioxide concentration monitoring device comprises drill bits, carbon dioxide concentration probes, temperature and humidity probes, a power supply module and a data acquisition unit. The drill bits drill out drill holes for burying the carbon dioxide concentration probes and the temperature and humidity probes respectively in soil. The data acquisition unit is connected with the carbon dioxide concentration probes and the temperature and humidity probes through data lines, and the monitoring data of the carbon dioxide concentration probes and the temperature and humidity probes are preserved. The power supply module is connected with the carbon dioxide concentration probes, the temperature and humidity probes and the data acquisition unit through wires. The soil carbon dioxide concentration monitoring device and method have the advantages that monitoring data are accurate and stable, disturbance to soil is lowered to the minimum, the soil carbon dioxide concentration of a certain depth can be monitored, the probes are protected, influences on monitoring of continuous rainfall are avoided, the soil carbon dioxide concentration monitoring device can conduct soil monitoring continuously in tropical regions and subtropical regions for a long time, a display meter is added, power is supplied through batteries, the soil carbon dioxide concentration can be fast measured outdoors, and the soil carbon dioxide concentration monitoring device has the advantages of being quick in response, high in accuracy, free of reagent supply and the like.

Provided is a device to facilitate carbon dioxide sampling in the exhalation breath of a person comprising a single nasal prong (10) insertable into a nostril of the person having a first lumen (20) which allows gas passage from the nostril to the surrounding external air, a second lumen (34) located within the first lumen (20). A tube (40) is connected at a first end (42) to an end of the second lumen (34) that is further from the nostril and connectable at a second end (44) to a carbon dioxide monitoring device (50). The carbon dioxide monitoring device (50) detects the level of carbon dioxide in the portion of the person's exhalation that passes through the second lumen (34). The portion of the person's exhalation that passes through the first lumen (20) is dispersed in the surrounding air.

The invention relates to the technical field of environmental monitoring, in particular to a cloud computing environment monitoring system. The cloud computing environment monitoring system comprisesa sub-monitoring point; the sub-monitoring point is electrically connected with a data acquisition module and a power source module; the data acquisition module comprises an air temperature monitoringmodule; the air temperature monitoring module and an air humidity monitoring module are electrically connected, and the air humidity monitoring module is electrically connected with a soil pH monitoring module; the soil pH monitoring module is also electrically connected with a carbon dioxide monitoring module; the carbon dioxide monitoring module is electrically connected with an illumination monitoring module; the sub-monitoring point is further electrically connected with a monitoring terminal module; the monitoring terminal module is also electrically connected with a microprocessor; themicroprocessor is electrically connected with an intelligent mobile terminal; and the intelligent mobile terminal is electrically connected with a cloud computing platform. The cloud computing environment monitoring system can stably monitor the environmental quality in real time in a low cost; if an environmental safety accident occurs, the user can be informed at the first time; and the cloud computing environment monitoring system is beneficial to the agricultural planting.

The invention relates to an air passage block and an end-expiratory carbon dioxide monitoring module manufactured by adopting the same. In the invention, an air outlet chamber communicated with a vacuum pump component and an air inlet chamber communicated with a carbon dioxide concentration measurement component are arranged in an air passage block body; the air outlet chamber is provided with anair hole communicated with the outside by two parts, the air inlet chamber is provided with an inner side air hole communicated with the outside by two parts respectively and an outer side air hole communicated with the outside by one part, and the outer side of the outer side air hole is also provided with a blind hole which is communicated with the outside by two parts and is not communicated with the air inlet chamber; and a connecting pipe used for generating pressure drop is arranged between the air outlet chamber and the air inlet chamber. As complicated pipeline connection is omitted, the pressure and the flow rate loss of gas expired by a patient is reduced when being transmitted in the monitoring module, and the measurement of carbon dioxide expired by the patient is more accurate. By arranging the connecting pipe used for generating pressure drop, a pressure difference is provided to measure the flow rate, and the whole structure and the installation are simplified. A pressure difference sensor adopts the connection of a flexible PCB plate and a main PCB plate, which obviously saves the space; the vibration damping performance of the vacuum pump component is reliable.

The invention discloses indoor plant factory planting integrated equipment which comprises a three-dimensional cultivation frame (2) with a plurality of cultivation layers, growth grooves (1) placed on the cultivation layers, LED plant light supplementing light sources (3) arranged above the growth grooves (1), natural wind simulators (11) arranged on the side walls of the cultivation layers and spraying equipment arranged above the growth grooves (1). The LED plant light supplementing light source (3), the natural wind simulator (11) and the spraying device are all electrically connected with the controller, a temperature sensor (6), a carbon dioxide monitor (7) and a humidity sensor (8) are arranged at the top of the three-dimensional cultivation frame (2), and the temperature sensor (6), the carbon dioxide monitor (7) and the humidity sensor (8) are all electrically connected with the controller. The indoor plant factory planting integrated equipment can automatically control environmental conditions such as temperature, humidity, illumination, carbon dioxide concentration and moisture of plant growth, and annual continuous and efficient production of plants is achieved.

The invention discloses an atmospheric environment carbon dioxide monitoring device for highway engineering. The atmospheric environment carbon dioxide monitoring device is characterized in that the atmospheric environment carbon dioxide monitoring device comprises a gas production opening (1), a gas inlet (2), a carbon dioxide equipment box (3), a light-receiving component (4), a first gas exhaust opening (5), a first fan motor (6), a first gas exhaust pipeline (7), a second gas exhaust pipeline (8), a second fan motor (9), a second gas exhaust opening (10), an infrared light-emitting component (11), an absorbing plate (12), a first gas exhaust channel (13), a second gas exhaust channel (14), a data collecting and storing system and a power supplying system. The power supplying system adopts a solar cell panel or a storage battery, and the first gas exhaust pipeline (7) is provided with an automatic filtering function. The atmospheric environment carbon dioxide monitoring device is easy to manufacture and high in measuring precision, and has the self-cleaning function under the carbon dioxide heavy-pollution condition; and the concentration of carbon dioxide can be measured independently, and the concentration of the vehicle-mounted movable carbon dioxide can also be measured.

The invention discloses a highway engineering atmospheric-environment carbon-dioxide monitoring method. The method is characterized in that a carbon-dioxide monitoring device is employed for highway engineering atmospheric-environment carbon-dioxide monitoring; The device comprises an air collection port (1), an air inlet (2), a carbon-dioxide equipment box (3), a light receiving element (4), a first air exhausting port (5), a first fan motor (6), a first air exhausting pipeline (7), a second air exhausting pipeline (8), a second fan motor (9), a second air exhausting port (10), an infrared illuminating element (11), an absorbing plate (12), a first air exhausting passage (13), a second air exhausting passage (14), a data collection storage system and a power supply system; and the first air exhausting pipeline (7) has an automatic filtering function. The method can realize a self-cleaning function of equipment under a condition of heavy carbon-dioxide pollution. Independent measurement of carbon-dioxide concentration can be carried out, and vehicle-mounted-mobile-type measurement of the carbon-dioxide concentration can also be carried out.

A portable tidal capnogram recording device of the present invention relates to the field of medical equipment and physiological signal monitoring, comprising a circuit board equipped with a microprocessor, a power management module electrically connected to the circuit board, and a carbon dioxide monitoring module connected to the circuit board , the carbon dioxide monitoring module includes a breathing mouthpiece, an airway connected to the airway of the breathing mouthpiece, a monitoring unit connected to one end of the airway, and an air suction pump connected to the monitoring unit through a rubber hose. The air suction pump communicates with the power management module through a microcontroller It is electrically connected, and by adjusting the suction flow of the air pump, the carbon dioxide detector can be easily applied to different groups of people for monitoring; by setting the temperature detection monitoring module and the heating module, it can effectively prevent water vapor condensation and further improve the accuracy of concentration detection sex.