The present application includes an automation control device with a control panel, the control panel comprising at least one button with specified control function; and at least one luminous element located adjacent to the at least one button; wherein the at least one button is operable in a locked mode and a standby mode; in the locked mode, the press on the button would not trigger the specified control function of the button but would light up the at least one luminous element and switch the button into the standby mode; and in the standby mode, the at least one luminous element keeps in lighting, and the press on the button would trigger the specified control function of the button. The automation device is adapted for safe and correct operation in dim or dark environment.

Provided are an operation panel capable of reliably pressing down a target operation key while saving arrangement space of operation keys, an image forming device provided with the same, and an image reading device. An operation panel (3) is provided with a main body unit (10) having a panel surface (10a) tilted with respect to a horizontal direction and operation keys (12 to 16) protruded from the panel surface. The operation keys have operation surfaces (12a to 16a) pressed down by a user and protrusion portions (12b to 16b) formed so as to be protruded from the operation surfaces along lower end portions of the operation surfaces.

An electronic device is provided. The electronic device comprises a housing component, a circuit board, and a sliding key component. An outer side of the housing component is provided with a concave region. A bottom of the concave region is provided with a sliding groove. A position of the bottom of the concave region connected with a sidewall of the concave region is provided with an annular groove surrounding the sliding groove. The circuit board is disposed in the housing component. The sliding key component is partially located in the concave region, and extends from the outer side of the housing component into an inner side of the housing component through the sliding groove to be connected with a toggle switch disposed on the circuit board to allow the sliding key component to toggle the toggle switch along a sliding direction under the action of an external force.

A switch unit has a display part that displays an image in at least one input area, a substrate provided above the display part, the substrate having a contact, and at least one substrate opening configured to allow the image in the at least one input area to be viewed from above, an operating button case that covers the substrate, having at least one button case opening, at least one operating button that has translucency, and that is freely pressed down through the at least one button case opening of the operating button case and causes conduction of the contact by being pressed down, light sources mounted on the substrate, that illuminate an area surrounding the at least one operating button, and a light transmissive water-proof sheet made of an elastic member.

A controller may be positioned within an explosion-proof housing in a process control system. The controller may be connected to circuit breakers within the explosion-proof housing via wired communication links, and connected to devices positioned external to the explosion-proof housing via wireless communication links. The wireless communication links may have lower bandwidth than the wired communication links. The controller may include one or more processors and one or more memories storing a set of computer-executable instructions that cause the controller to: receive, from the breakers via the wired communication links, data associated with the operation of the circuit breakers; generate messages based on the data associated with the operation of the circuit breakers; and send, via the wireless communication links, the messages to the devices positioned external to the explosion-proof housing.

An electronic apparatus includes a first operation unit and a second operation unit each operable by a user. The first operation unit is configured to change a state of at least one switch when operated. The second operation unit is configured to change a state of a first switch according to a first operation, and a state of a second switch according to a second operation following the first operation, with an operating force greater than that of the first operation. A maximum value of the operating force for the second operation with the second operation unit is different from a maximum operating force for operating the first operation unit.

In a switch system including a set temperature UP switch that raises a set temperature of an air conditioner unit and a set temperature DOWN switch that lowers the set temperature, when a stuck-ON determination unit determines that only the set temperature UP switch is in a stuck-ON state, a stuck-ON recognition unit also sets the set temperature DOWN switch as being in a stuck-ON state. This makes it possible to eliminate a malfunction caused by only one of the switches becoming stuck ON.