Abstract: A customer service robot autonomously moves to support shopping of a customer in a commercial facility including a plurality of stores. The customer service robot includes an operation mode setting unit (a moving form setting unit) that sets a moving form in moving while being accompanied by the customer to a leading mode (a first moving form) for leading the customer and moving along a set moving route or a following mode (a second moving form) for moving following the customer and a movement control unit that causes the customer service robot to move, in the moving form set by the operation mode setting unit, in a state in which the distance to the customer is kept constant.

Abstract: A customer service robot autonomously moves to support shopping of a customer in a commercial facility including a plurality of stores. The customer service robot includes an action plan generating unit (a route setting unit) configured to set a store to be visited and a moving route in the commercial facility based on a store visiting purpose acquired from the customer and an operation control unit (a movement control unit) configured to cause the customer service robot to autonomously move along the moving route.

Abstract: In a redundancy method for Ethernet communication between a plurality of nodes constituting a distributed control system, the nodes are connected to each other in a duplex state through first and second Ethernet communication lines which are independent of each other. A node on the transmission side transmits identical data to both the first and second Ethernet communication lines. A node on the reception side determines one of the identical data received from the node on the transmission side through the first and second Ethernet communication lines which has arrived first as reception data.

Abstract: A housing body of electronic equipment has a square base body having a circumferential wall and a box-like case assembled with the base body. The base body has a built-in printed board assembly including first, second and third printed boards of which the first and second printed boards are arranged above one another, and the third printed board has engaging pawls formed at both its end portions engaged with one side of the first and second printed boards perpendicular thereto. The base body is provided with a plurality of printed board engaging members at an inner side of its circumferential wall, and with first support portions and struts in the vicinity of four corner portions of the base body. Each strut of one pair of struts opposed to each other is provided at its opposed face with a guide groove and with a printed board engaging hole which communicates with the guide groove.