Abstract: This specification discloses a transmission system, device and method that prevent data loss. The invention uses a first channel and a second channel to send same packet encapsulating same target data to a receiving end. After confirming the reception of the packet, the receiving end drops the duplicated packet. The receiving end only processes yet processed packet. This technique can reduce the chances of losing data.

Abstract: A programmable remote control system and the method thereof are provided to solve the problem of learning a controlling language at a huge time cost in the prior art. A control command group is remotely set and stored in the triggering end for positive and negative logic determination and control. The mechanism facilitates the provision of the control command group for actively transmitting messages.

Abstract: An active monitoring system and method thereof are provided to solve the problems of no real-time monitoring and bandwidth usage in the prior art. A triggering end detects a monitoring device to generate a device tag. The device tag is packed and actively sent to the server end via a network. The server end automatically generates an OPC tag for an integrating server to use. The mechanism can increase monitoring efficiency and bandwidth usage.

Abstract: A positioning and grounding structure for ring connectors. A cutting part is formed by cutting one side of the ring connector. The connecting base has a grounding part. Using the relative position between the grounding part and the electrical connecting part as well as the cutting part for double positioning, the ring connector can be quickly fixed on a circuit board. The grounding part can quickly connect noises or electrostatics to the ground. The structure solves the problem of connectors in the prior art that lacks positioning and grounding designs. The provided ring connector can quickly position and ground.

Abstract: A connector structure of waterproof and explosion-proof button is provided. A waterproof element completely covers the connecting part of the connecting element. By pressing a first button bar of the waterproof element, a second button bar is driven to depress the button therein. A companion part inside the connecting element is connected and fixed with an explosion-proof element. The connector structure thus achieves the waterproof and explosion-proof effects and has the button function at the same time. The structure solves the problem of having too many elements and too complicated assembly process for achieving the waterproof effect in the prior art. According to the structure, the assembly of the connector structure is simple and both waterproof and explosion-proof effects are simultaneously achieved.

Abstract: A method of determining request transmission priority subject to request content and transmitting request subject to such request transmission priority in application of Fieldbus communication framework in which the communication device determines whether the received requests have the priority subject to the respective content, and also determines whether there is any logical operation condition established, and then the communication device transmits the received external requests to the connected slave device as an ordinary request or priority request, preventing the slave device from receiving an important external request sent by the main control end or manager at a late time.

Abstract: A method of determining request transmission priority subject to request channel and transmitting request subject to such request transmission priority in application of Fieldbus communication framework in which the communication device determines whether the request channel from which the received requests came have the priority right and whether there is any logical operation condition established, and then the communication device transmits the received external requests to the connected slave device as an ordinary request or priority request, preventing the slave device from receiving an important external request sent by the main control end or manager at a late time.

Abstract: This specification discloses a communication system across networks and the method thereof for processing remote controls of devices in a private network from a public network. By providing a server end that contains correspondence relations between client ends and mobile ends in a public network, packets in the public network are automatically transmitted to devices in a private network according to the correspondence table in the server end for remote controls. The invention increases the convenience in managing devices in a private network.

Abstract: This specification provides a backup system that stores a boot data file of an embedded system in a different storage section and a method thereof By generating several file systems and after defining one of them as the backup file system, the backup boot data file is stored in the backup file system. When normally used boot data file cannot be used for booting, the backup boot data file is used. This solves the problem that the backup boot data file is stored in a file system that the user can freely access and thus may be damaged by the user. This achieves the technical feature that a specific embedded system can have several different file systems to store multiple boot data files.

Abstract: A heat-dissipating structure for the expansion board architecture is provided. A fixing element disposed on the heat-absorbing substrate fixes the motherboard and the first expansion board. The heat-generating elements on the motherboard or the first expansion board are directly in touch with the heat-absorbing surface of the heat-absorbing substrate to absorb their heat. The heat-dissipating board extended from the side of the heat-absorbing substrate then dissipates the heat absorbed by the heat-absorbing substrate. The structure thus solves the problems that existing heat-dissipating structures occupy larger space and therefore cannot be effectively used in an expansion board architecture to dissipate heat produced by the heat-generating elements between the motherboard and the expansion board and that it is likely to have assembly tolerance. Using the structure can reduce the space and the assembly tolerance, but effectively enhance heat dissipation in the expansion board architecture.

Abstract: A hook structure of the compact flash card has a supporting part and an extension part. The hook part extended from the extension part holds the compact flash card. The supporting part supports the compact flash card. It enables one to quickly and conveniently insert or withdraw the compact flash card on an industry computer. This solves the problems in the prior art that the compact flash card cannot be conveniently inserted into or removed from an industry computer and that the compact flash card easily gets loose, resulting in the industry computer system crash. The hook structure enables convenient replacement of compact flash cards and ensures the stable operation of the industry computer.

Abstract: A clamping device for a DIN rail is provided, in which a positioning blade spring is fixed on a base, a first positioning component and a second positioning component are disposed on a sliding element, and the sliding element moves relative to the base, so that the positioning blade spring is enabled to move from the second positioning component to the first positioning component for being fixed and positioned, so as to solve the problems of the prior art that the clamping device cannot be easily detached from the DIN rail and is easily damaged, thereby achieving the technique efficacies of simplifying the process of detaching the clamping device from the DIN rail and facilitating detaching the clamping device.

Abstract: The present invention relates to a method for disconnecting a transceiver from a bus in multipoint/multidrop architecture. A central processing unit (CPU) and a universal asynchronous receiver transmitter (UART) in a system are connected to a controller used for storing and transmitting data, and the controller is further connected with a bus through a transceiver that monitors/records data and a relay that connects or disconnects the transceiver from the bus. The controller comprises a signal comparator used to compare similarities and differences of data and a failure detection controller used to achieve connection or disconnection of the bus with the transceiver. In case of the transceiver's failure, the controller disconnects the transceiver from the bus to ensure that the bus does not fail to work due to breakdown of the transceiver.

Abstract: An RJ45 connector device having a key structure for changing pin definitions is provided. The RJ45 connector device includes a conversion processor, a key, an information processor, and output pins. When the key is pressed to trigger a conversion signal, the conversion processor first converts a part of input information into relay information. Then, according to the conversion signal, the information processor converts the input information and the relay information into output information through designated processing and then output the output information through the output pins, so as to solve the problem that various connector devices occupy a lot of the available space of an electronic device when being used, thereby saving the available space of the electronic device and enabling a single connector device to achieve technical effects of a multi-functional connector device in terms of switching pin definitions.