Abstract: The disclosure relates to methods, apparatuses, and systems for determining an application permission including determining a current application scenario of a first application, in response to detect that a target user account triggers the first application to invoke a target application service of a second application and determining a target application permission corresponding to the target application service based on the current application scenario of the first application, such that the first application invokes the target application service based on the target application permission.

Abstract: The invention relates to an illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition.

Abstract: The present invention relates to a visual efficacy determining method for non-colored objects in different light environments, comprising: a) setting light environment; b) placing an object for performing visual recognition of a driver; c) resetting the light environment, and repeating the step b); d) processing visual recognition information data obtained after experiments, and establishing a correlating relationship between visual recognition time and color temperature, color rendering index and brightness parameters of the light environment; and e) performing visual efficiency analysis according to the visual recognition information data processing results. The present invention further provides a system for implementing the visual efficacy determining method for non-colored objects in different light environments, wherein the system comprises a simulated tunnel middle section subsystem, a testing subsystem and a data processing subsystem.

Abstract: The invention relates to an illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition.

Abstract: The present invention relates to a visual efficacy determining method for non-colored objects in different light environments, comprising: a) setting light environment; b) placing an object for performing visual recognition of a driver; c) resetting the light environment, and repeating the step b); d) processing visual recognition information data obtained after experiments, and establishing a correlating relationship between visual recognition time and color temperature, color rendering index and brightness parameters of the light environment; and e) performing visual efficiency analysis according to the visual recognition information data processing results. The present invention further provides a system for implementing the visual efficacy determining method for non-colored objects in different light environments, wherein the system comprises a simulated tunnel middle section subsystem, a testing subsystem and a data processing subsystem.

Abstract: This invention relates to an illumination standard calculation method for a tunnel middle section based on safe visual recognition: (a) Setting the light environment of the tunnel middle section; (b) Placing a target object in the tunnel middle section; (c) Making a driver drive a motor vehicle at different speeds toward the target object, and measuring the visual recognition distances D required by the driver to visually discover the target object at different speeds; (d) Resetting the average brightness L of the tunnel middle section and repeating the steps (b) and (c) to obtain a plurality of different sets of visual recognition distances D and corresponding brightness values L; (e) Using the S model to fit the data of the plurality of sets of visual recognition distances D and brightness values L to obtain the formula of the relational model of D and L to be L=0.683/(5.

Abstract: A handset device (10) includes a housing (20) and a battery cover (30) mounted on the housing. The housing includes a front wall (24), a rear wall (22), two sidewalls (26), and at least one bay cooperatively surrounded by the front wall, the rear wall, and the sidewalls. The front wall includes at least one first receiving portion (240) including a wedge-shaped first slidable groove (242) having a first inclination angle and a recessed portion (244) communicating with the first slidable groove. The rear wall includes at least one receiving groove (220). The battery cover includes at least one fastening protrusion (34) corresponding to the first receiving portion and at least one protrusion (32) received in the receiving groove. The fastening protrusion has an inclination angle equal to the first inclination angle and includes a hook located at an end thereof, abutting the recessed portion.

Abstract: A handset device (10) includes a housing (20) and a battery cover (30) mounted on the housing. The housing includes a front wall (24), a rear wall (22), two sidewalls (26), and at least one bay cooperatively surrounded by the front wall, the rear wall, and the sidewalls. The front wall includes at least one first receiving portion (240) including a wedge-shaped first slidable groove (242) having a first inclination angle and a recessed portion (244) communicating with the first slidable groove. The rear wall includes at least one receiving groove (220). The battery cover includes at least one fastening protrusion (34) corresponding to the first receiving portion and at least one protrusion (32) received in the receiving groove. The fastening protrusion has an inclination angle equal to the first inclination angle and includes a hook located at an end thereof, abutting the recessed portion.