Abstract: The information providing system includes a mobile terminal and a server device that communicates with the mobile terminal. The mobile terminal includes: a sensor that reads a facility ID used to identify at least one facility; and a communication device that transmits, to the server device, the facility ID read by the sensor and a user ID used to identify a user of the mobile terminal. The server device includes: a memory that stores a plurality of types of facility-related information; a processor that extracts, from the plurality of types of facility-related information stored in the memory, facility-related information corresponding to the facility ID and the user ID transmitted from the mobile terminal; and a communication device that transmits, to the mobile terminal, the facility-related information extracted by the processor. The mobile terminal includes a display on which the facility-related information transmitted from the server device is displayed.

Abstract: The information providing system includes: a working terminal; and an instructing terminal that communicates with the working terminal. The working terminal includes: a working communication device that outputs imaging information including an image of the facility captured with a camera; and a working display that displays working information concerning the work carried out in the facility. The instructing terminal includes: an instructing display that displays the captured image based on the imaging information; an interface that receives instructing information serving to offer an instruction for the work carried out in the facility; and an instructing communication device that outputs the instructing information. The working terminal displays, on the working display, the captured image processed based on the imaging information and the instructing information, as the working information.

Abstract: This wireless terminal device includes: an input portion; an output portion; a circuit board module electrically connected to the input portion and the output portion; an external power supply module which is detachably connected to the circuit board module, includes an input terminal for receiving input from an external power supply, converts an input voltage inputted to the input terminal, and outputs an output voltage; and a case for storing the input portion, the output portion, the circuit board module, and the external power supply module. In a storage space, a battery can be stored when the external power supply module is detached from the circuit board module. The circuit board module includes a connector connection portion to which a connector of the external power supply module or a connector of the battery can be selectively connected, and which is provided at a position spatially connected to the storage space.

Abstract: A sensor module according to one mode of the present disclosure includes a sensor part and a case configured to house the sensor part. The case includes: a contact part formed from an elastic body and including a contact surface with which to contact an installation target of the sensor module; and a magnet disposed along the contact surface of the contact part.

Abstract: This wireless terminal device includes: an input portion; an output portion; a circuit board module electrically connected to the input portion and the output portion; an external power supply module which is detachably connected to the circuit board module, includes an input terminal for receiving input from an external power supply, converts an input voltage inputted to the input terminal, and outputs an output voltage; and a case for storing the input portion, the output portion, the circuit board module, and the external power supply module. In a storage space, a battery can be stored when the external power supply module is detached from the circuit board module. The circuit board module includes a connector connection portion to which a connector of the external power supply module or a connector of the battery can be selectively connected, and which is provided at a position spatially connected to the storage space.

Abstract: A sensor module according to one mode of the present disclosure includes a sensor part and a case configured to house the sensor part. The case includes: a contact part formed from an elastic body and including a contact surface with which to contact an installation target of the sensor module; and a magnet disposed along the contact surface of the contact part.