US 12,335,356 B2
Task dispatching method and system for electrophoretic display (EPD) tag devices
Chih-Cheng Chang, Taipei (TW); Feng-Hsiang Chung, Taipei (TW); and Yi-Bin Yu, Taipei (TW)
Assigned to ADVANTECH CO., LTD., Taipei (TW)
Filed by ADVANTECH CO., LTD., Taipei (TW)
Filed on Apr. 27, 2023, as Appl. No. 18/307,863.
Claims priority of application No. 111123744 (TW), filed on Jun. 24, 2022.
Prior Publication US 2024/0080376 A1, Mar. 7, 2024
Int. Cl. H04L 67/63 (2022.01); G06Q 10/087 (2023.01); H04L 49/20 (2022.01)
CPC H04L 67/63 (2022.05) [G06Q 10/087 (2013.01); H04L 49/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A task dispatching method for a plurality of electrophoretic display (EPD) tag devices to be implemented by a server system and a plurality of routers connected to the server system, each of the plurality of EPD tag devices configured to be connected to a router of the plurality of routers over a wireless network, the method comprising steps of:
a) receiving, by the server system, an input comprising a task command, the task command comprising a task and a target EPD tag device of the plurality of EPD tag devices that the task is assigned to;
b) forwarding, by the server system, the task command to a target router of the plurality of routers that the target EPD tag device is connected to, wherein the target router is identified based on a connection list stored in the server system, wherein the connection list records at least one of the plurality of routers and one or more of the plurality of EPD tag devices connected to the at least one of the plurality of routers;
c) checking, by the target router, whether the target EPD tag device is currently connected thereto;
d) sending, by the target router, an offline notification to the server system, the offline notification indicating that the target EPD tag device is offline based on determining that the target EPD tag device is not currently connected to the target router;
e) receiving, by the server system, an online notification from a second target router of the plurality of routers, the online notification indicating that the target EPD tag device is connected to the second target router;
f) in response to receiving the offline notification and the online notification, updating, by the server system, the connection list based on the offline notification and the online notification to provide an updated connection list, identifying that the target EPD device is currently connected to the second target router;
g) forwarding, by the server system, the task command to the second target router based on the updated connection list;
h) checking, by the second target router, whether the target EPD tag device is currently connected thereto; and
i) delivering, by the second target router, the task command to the target EPD tag device when it is determined that the target EPD tag device is currently connected thereto.