Management systems, control devices, methods, and programs

Abstract

The present invention comprises: a first network device (8d) that is provided with a first positioning device (7d); a second network device (8g) that is connected to the first network device (8d) by a connection cable (55b) and that is provided with a second positioning device (7g); and a management apparatus (3A) that includes a management control unit that sets the first positioning device (7d) as an anchor, sets the second positioning device (7g) as a tag, and causes the first positioning device (7d) to measure the position of the second positioning device (7g). The management control unit of the management apparatus (3A) determines the position of the second positioning device (7g), on the basis of the positioning result of the position of the second positioning device (7g) measured by the first positioning device (7d) and the cable length of the connection cable (55b) between the first network device (8d) and the second network device (8g).

Claims

1. A first network device located on a wired network and performing positioning of the target to be positioned, A first positioning device provided in the first network device, which wirelessly determines the position of the positioning target, A second network device is connected to the first network device via a wired connection cable and includes a second positioning device that wirelessly determines the position of the target to be positioned, A management device including a control unit that sets the first positioning device as an anchor to be used as a reference for positioning, sets the second positioning device as the tag to be positioned, and causes the first positioning device to determine the position of the second positioning device, Equipped with, The management control unit of the management device determines the position of the second positioning device based on the positioning result of the first positioning device determining the position of the second positioning device and the cable length of the connecting cable between the first network device and the second network device. Management system.

2. The management control unit of the management device compares the cable length of the connecting cable with the distance between the first positioning device and the second positioning device measured by the first positioning device, and uses the shorter value to determine the position of the second positioning device. The management system according to claim 1.

3. The first network device estimates the cable length of the connection cable between it and the second network device based on the propagation delay time of the connection cable. The management system according to claim 1 or 2.

4. The management control unit of the management device corrects the position of the second positioning device using a first correction value, which is a communication delay correction value determined by installation information based on the space in which the second positioning device is installed. The management system according to claim 1 or 2.

5. The management control unit of the management device corrects the positioning result of the first positioning device to determine the position of the second positioning device using a second correction value different from the first correction value, and then uses the corrected positioning result to cause the first positioning device to determine the position of the second positioning device again. The management system according to claim 4.

6. The installation information includes the size of the space in which the second positioning device is located, and the number of items placed within the space. The correction value for the aforementioned communication delay is a value statistically determined based on the aforementioned installation information. The management system according to claim 4.

7. The first network device and the second network device are located within a manufacturing apparatus for manufacturing products. The installation information includes the longest path which is the longest distance within the manufacturing apparatus. The management control unit of the management device discards the distance measurement result measured by the first positioning device if the distance measured by the first positioning device between the first positioning device and the second positioning device exceeds the distance of the longest path. The management system according to claim 4.

8. The network device further includes a third positioning device not present in the network device, or a contactless communication tag capable of sending and receiving information without contact. The management control unit of the management device confirms the presence of the third positioning device or the contactless communication tag by causing the first positioning device to communicate with the third positioning device or the contactless communication tag. The management system according to claim 4.

9. The first network device further comprises a first input / output control device that controls the ON / OFF status of the first positioning device based on instructions from the management device, or The second network device further comprises a second input / output control device that controls the ON / OFF status of the second positioning device based on instructions from the management device. The management system according to claim 1 or 2.

10. A first positioning device, provided in a first network device located on a wired network, which performs positioning of a target wirelessly, is set as a reference anchor for positioning; a second positioning device, provided in a second network device connected to the first network device via a wired connection cable, which performs positioning of a target wirelessly, is set as the tag to be positioned; and a management control unit is provided that causes the first positioning device to determine the position of the second positioning device. The management control unit determines the position of the second positioning device based on the positioning result of the first positioning device determining the position of the second positioning device and the cable length of the connecting cable between the first network device and the second network device. Management device.

11. A management system comprising a first positioning device that measures the position of a target by wireless means provided on a first network device which is arranged on a wired network and performs positioning of the target, and a second positioning device provided on a second network device which is connected to the first network device via a wired connection cable, is to be implemented by a management system, The position of the second positioning device is determined based on the positioning result of the first positioning device determining the position of the second positioning device and the cable length of the connecting cable between the first network device and the second network device. method.

12. On the computer, A process to determine the position of a second positioning device based on the positioning result of a first positioning device, which is located on a wired network and performs positioning of a target to be positioned, and a second positioning device, which is located on a second network device connected to the first network device via a wired connection cable, and the cable length of the connection cable between the first network device and the second network device, is performed. A program to be executed.

Images