Abstract: A production management device includes: a communication section provided to enable communication with a combination weighing apparatus and a bag-making and packaging apparatus; a management device provided to enable communication with the combination weighing apparatus and the bag-making and packaging apparatus via the communication section; and a storage device configured to store therein various information. The management device generates and stores production information in the storage device.

Abstract: A takeoff and landing device, includes: a fixing devices or a communication unit configured to be able to switch between a first state that is a state of preventing the unmanned aerial vehicle from taking off from the takeoff and landing device and a second state that is a state of not preventing taking off; a weight acquisition unit configured to acquire weight of the article that the unmanned aerial vehicle delivers; and a takeoff controller or a takeoff controller configured to switch a state of the fixing devices or the communication unit to the first state or the second state on the basis of the weight of the article acquired by the weight acquisition unit and of a reference value for determining whether it is an overload.

Abstract: An X-ray shielding curtain includes a main body having a pair of main surfaces facing each other, and a plurality of protruding parts provided on at least one of the pair of main surfaces of the main body and protruding from the main surface, wherein each of the plurality of protruding parts has an opening portion that passes through the pair of main surfaces of the main body.

Abstract: A food-processing device includes a processor, an imaging device, an authentication part, and a management part. The food-processing device processes a food in a line in which the food is manufactured. The processor performs at least one process on the food. The imaging device captures an image of an eye of a user of the food-processing device. The authentication part authenticates the user in response to the image of the user's eye captured by the imaging device. The management part makes the process performed by the processor executable for the user authenticated by the authentication part. The authentication part authenticates the user in response to processing information of the user's iris included in the image of the user's eye.

Abstract: A product management system manages products that are a food and have print surfaces. The product management system has an inspection unit, a first information acquisition unit, and a storage unit. The inspection unit performs an inspection of the products and outputs inspection results as to whether the products are conforming products or nonconforming products. A plurality of pieces of same individual identification information are printed on the print surfaces of the products. The first information acquisition unit reads the individual identification information from the products. The storage unit associates and stores, with the inspection results, the individual identification information that the first information acquisition unit has read.

Abstract: A takeoff and landing device, includes: a fixing devices or a communication unit configured to be able to switch between a first state that is a state of preventing the unmanned aerial vehicle from taking off from the takeoff and landing device and a second state that is a state of not preventing taking off; a weight acquisition unit configured to acquire weight of the article that the unmanned aerial vehicle delivers; and a takeoff controller or a takeoff controller configured to switch a state of the fixing devices or the communication unit to the first state or the second state on the basis of the weight of the article acquired by the weight acquisition unit and of a reference value for determining whether it is an overload.