Embodiments relate generally to systems and methods for establishing communication between an operator using a personal protection equipment (PPE) device and a central monitoring station, particularly in an emergency event. If the PPE device loses connection with a wireless network, and therefore with the central monitoring station, one or more method may be used to communicate information from the PPE device to the central monitoring station. One method may include sending a message to a predefined mobile number with location, operator, and alarm information. Another method may comprise establishing a Bluetooth connection with a secondary device, wherein the secondary device is connected to the wireless network, and sending data from the PPE device to the secondary device, wherein the secondary device forwards the data to the central monitoring station.

Method to determine gas information and location of an operator carrying wireless gas detector during gas/mandown/panic events on communication failure with monitoring station

A method for a device to acquire air quality, includes: controlling a fan to rotate; measuring air quality by an air-quality detector; and generating air-quality information according to a measurement result of the air-quality detector.

Methods and devices for acquiring air quality

The invention discloses an excessive noxious gas early warning method and an excessive noxious gas early warning system based on a wearable device. The method is characterized in that excessive noxious gas alarming information comprising position information uploaded by the wearable device can be received; the excessive noxious gas early warning area information comprising the position area information can be generated according to the excessive noxious gas alarming information; current position information transmitted by the wearable device can be received; whether the current position information belongs to the position area of the excessive noxious gas early warning area information can be determined; the early warning information can be transmitted to the wearable device, or the wearable device and the intelligent terminal corresponding to the wearable device. When the current position information transmitted by the wearable device belongs to the position area of the excessive noxious gas early warning area information, the early warning information can be sent to the wearable device, or the wearable device and the intelligent terminal corresponding to the wearable device, and then the user can be aware of the areas full of the noxious gas, and can avoid going to the areas.

Excessive noxious gas early warning method and excessive noxious gas early warning system based on wearable device

The invention discloses a method for controlling terminal equipment through gas. The method comprises the steps of obtaining gas characteristic information around the terminal equipment detected by a gas sensor; judging whether the gas characteristic information meets a preset condition or not; if the gas characteristic information meets the preset condition, conducting predetermined operation on a predetermined operable object in a current display interface of the terminal equipment. The invention further provides a system for controlling the terminal equipment through gas. According to the method and system for controlling the terminal equipment through gas, the problem that it is not convenient for a user to choose displaying content of the terminal equipment is solved, and the convenience during operation of the user is improved.

Method and system for controlling terminal equipment through gas

The invention discloses a portable gas detection alert instrument. The instrument includes a power source module, an MCU controller, a signal collecting module, an alerting module, a wireless transmission module and a man-machine interaction module. The power source module is used for supplying power to other modules, and the MCU controller controls each module to run. The signal collecting moduletransmits collected signals to the MCU controller, and therefore whether or not it is needed to control the alerting module to give an alert and control the alerting level is judged. The wireless transmission module can achieve data transmission among more than two devices and achieve networking alerting. The alerting module includes a voice broadcasting system, an LED lamp and a vibration motorwhich are all electrically connected to the MCU controller. The man-machine interaction module can be used for setting the equipment number, the gas type, the alerting level, a corresponding gas concentration threshold value and corresponding LED lamp flicker frequency. Compensation for a detection result is carried out by different MCU controllers according to environmental temperature, and the accuracy of the detection result is improved. The power source module includes a management chip, and damage caused by over discharging of the power source module is prevented.

Portable gas detection alert instrument

The invention relates to a gas warning method and device which are used for detection and warning of gas in home life and industrial production. The gas warning method includes the steps that set gas information parameters in the current environment are detected, wherein set gas comprises gas affecting body health; when the detected set gas information parameters reach a preset parameter threshold value, warning operation is executed. By the adoption of the gas warning method, the concentration and leakage of gas are detected on a mobile terminal, especially for gas affecting body health. A user can conveniently use and carry the gas warning device to detect gas information in the current environment at any time and any place, especially when the gas warning device is used for mobile phones for the elder, and safety of home life and industrial production is improved.

Gas warning method and device

The invention discloses a network access method and a network access device and belongs to the terminal technical field. The methods includes the following steps that: whether an identified application satisfies a security judgment condition is monitored; when the identified application satisfies the security judgment condition, a network security level corresponding to a current network is obtained; whether the current network satisfies a network security access condition is judged according to the security identifier of the identified application and the network security level; and if the current network satisfies the network security access condition, the identified application is allowed to carry out network access. According to the network access method and the network access device of the invention, when it is detected that the identified application satisfies the security judgment condition, whether the identified application is allowed to carry out network access is judged according to the security identifier of the identified application and the network security level, and therefore, the security of data user in the identified application can be improved, and the risk that the user data are hijacked can be lowered.

Network access method and network access device

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Gas warning method and device

Network access method and network access device