Abstract: A movable medical bed system may include a bed body and a power supply apparatus. The power supply apparatus may include an electrical energy receiver and an electrical energy transmitter. The electrical energy receiver is arranged on the bed body. The electrical energy transmitter is configured to be connected to a power source. The bed body is able to move to a working position relative to the electrical energy transmitter. When the bed body is located at the working position, the electrical energy receiver can engage in electrical energy transmission with the electrical energy transmitter without plugging-in. The movable medical bed system helps to make the supply of power more convenient.

Abstract: The present disclosure relates to MRI device communications. The communications comprise: acquiring a received signal from a transmitting end, the received signal comprising multiple data symbols and multiple training symbol sets, each training symbol set comprising a first preset number of training symbols, with two adjacent training symbol sets of the multiple training symbol sets being spaced apart by a second preset number of the data symbols; extracting the first preset number of symbols from the received signal at intervals of the second preset number of symbols, to obtain a third preset number of symbols as a candidate training sequence; determining whether the candidate training sequence comprises the multiple training symbol sets; and in response to a determination that the candidate training sequence comprises the multiple training symbol sets, determining at least one of synchronization information and channel estimation information of the received signal.

Abstract: A calling device of a MRI system may include a reader/writer and a call maker. The reader/writer can send a fixed-frequency electromagnetic wave. The call maker may include a main body, an antenna, an operating member, and an answering controller. The antenna can generate an induced current after receiving the fixed-frequency electromagnetic wave. The operating member can switch between first and second positions relative to the main body. The answering controller is configured such that: when the operating member is in the first position, a first radio-frequency signal is sent through the antenna with energy obtained from the induced current generated by the antenna, and when the operating member is in the second position, a second radio-frequency signal is sent through the antenna with energy obtained from the induced current generated by the antenna. The reader/writer can send different prompt signals according to the first and second radio-frequency signals.

Abstract: A wound multiple sensing method, including: calculating the similarity between the current data sequence and each of the case-data sequences in each of the reference cases; selecting the case-data sequence which has the greatest similarity with the current data sequence, from the case-data sequences in each of the reference cases, to be a similar case-data sequence in each of the reference cases, wherein each similar case-data sequence corresponds to a similar case treatment; performing a multiple regression analysis using the similar case-data sequences and the similar case treatments to calculate a fitness function, wherein the dependent variable of the fitness function is a wound change; performing a parameter optimization algorithm using the current data sequence and the fitness function to calculate an optimal treatment which maximizes the wound change, and to calculate an expected wound change value that corresponds to the optimal treatment.

Abstract: A system and method for automatically generating a care record are provided, which are suitable for a baby bed cover. The system includes an image capturing device and a processor. The image capturing device captures a real-time image of a baby in the baby bed. The processor is configured to receive the real-time image and detects whether an abnormal event occurs in the real-time image. The processor detects an opening time and a closing time of the bed cover to obtain a start and end time of a care operation. The processor recognizes an abnormal event type according to the abnormal event, selects a care record template according to the abnormal event type, and generates a care record according to an occurrence time of the abnormal event, the abnormal event type, the start and end time of the care operation, and the care record template.

Abstract: A movable medical bed system may include a bed body and a power supply apparatus. The power supply apparatus may include an electrical energy receiver and an electrical energy transmitter. The electrical energy receiver is arranged on the bed body. The electrical energy transmitter is configured to be connected to a power source. The bed body is able to move to a working position relative to the electrical energy transmitter. When the bed body is located at the working position, the electrical energy receiver can engage in electrical energy transmission with the electrical energy transmitter without plugging-in. The movable medical bed system helps to make the supply of power more convenient.

Abstract: A wound multiple sensing method, including: calculating the similarity between the current data sequence and each of the case-data sequences in each of the reference cases; selecting the case-data sequence which has the greatest similarity with the current data sequence, from the case-data sequences in each of the reference cases, to be a similar case-data sequence in each of the reference cases, wherein each similar case-data sequence corresponds to a similar case treatment; performing a multiple regression analysis using the similar case-data sequences and the similar case treatments to calculate a fitness function, wherein the dependent variable of the fitness function is a wound change; performing a parameter optimization algorithm using the current data sequence and the fitness function to calculate an optimal treatment which maximizes the wound change, and to calculate an expected wound change value that corresponds to the optimal treatment.

Abstract: A calling device of a MRI system may include a reader/writer and a call maker. The reader/writer can send a fixed-frequency electromagnetic wave. The call maker may include a main body, an antenna, an operating member, and an answering controller. The antenna can generate an induced current after receiving the fixed-frequency electromagnetic wave. The operating member can switch between first and second positions relative to the main body. The answering controller is configured such that: when the operating member is in the first position, a first radio-frequency signal is sent through the antenna with energy obtained from the induced current generated by the antenna, and when the operating member is in the second position, a second radio-frequency signal is sent through the antenna with energy obtained from the induced current generated by the antenna. The reader/writer can send different prompt signals according to the first and second radio-frequency signals.

Abstract: The disclosure is related to a method and a system for adjusting a communication channel based on a signal scan result. The system includes wireless gateway modules, a wireless transceiver module and a control circuit. The control circuit determines whether or not the wireless transceiver module conducts any transmission task. The wireless transceiver module is activated to scan signals over a selected frequency when it is available. Multiple scan results can be obtained when the scanning process is repeatedly conducted in different frequencies. Signal information is recorded in a signal scan table. Thus, if the system determines the frequency needs to be adjusted based on a transmission status, one of the frequencies recorded in the table can be chosen and set for the wireless gateway module and a transmission frequency for a terminal node is modified.

Abstract: The disclosure is related to a method and a system for long-distance full-duplex wireless communication. The system is mainly composed of a control circuit, at least one wireless transmission module and one or more wireless gateway modules. The wireless gateway module can receive data from a terminal node via one of multiple channels. The control circuit instructs a wireless transmission module to transmit data. The system utilizes the wireless transmission module to deal with the data from the gateway modules. In the method, in order to achieve full-duplex communication, the system obtains transmission parameters of every terminal node, sets up a transmission schedule with respect to signals having various frequencies within designated time slots according to the operating environment of the node, assigns a transmission priority within the time slots and stores the setting in the node.

Abstract: The disclosure is related to a multi-gateway communication method. The method is applied to a wireless gateway system that includes multiple nodes including a number of gateways. A root gateway is provided among the gateways. When a gateway receives an uplink data from a node, the uplink data is transmitted to a backend server if the gateway is the root gateway. The uplink data is transmitted to a parent gateway if the gateway is not the root gateway. On the other hand, when the gateway receives downlink data from a node, it is determined if a destination node is recorded in a downlink routing table of a descendant gateway if gateway is not connected with the destination node but with the descendant gateway. If the destination node is recorded in the downlink routing table, the data is transmitted to the descendant gateway; otherwise, the downlink data is discarded.

Abstract: A wireless communication system, a communication method, and a portable transceiver device are provided. The wireless communication system includes a server, a plurality of gateway devices and user-end portable transceivers that are interconnected by a wireless WAN protocol, e.g. LoRa. Each portable transceiver connects a user device via a near-end wireless communication protocol that allows the user device to connect with the server via a gateway device. After the user device sends a message through the portable transceiver, the server discovers another portable transceiver and another gateway device according to a destination address. Thereby, the message can be transmitted via this connection, or a direct voice communication can be performed via a communication channel over this connection. The communication system therefore provides a communication service under the wireless WAN protocol that is an alternative to traditional mobile communications.

Abstract: A wireless communication system, a communication method, and a portable transceiver device are provided. The wireless communication system includes a server, a plurality of gateway devices and user-end portable transceivers that are interconnected by a wireless WAN protocol, e.g. LoRa. Each portable transceiver connects a user device via a near-end wireless communication protocol that allows the user device to connect with the server via a gateway device. After the user device sends a message through the portable transceiver, the server discovers another portable transceiver and another gateway device according to a destination address. Thereby, the message can be transmitted via this connection, or a direct voice communication can be performed via a communication channel over this connection. The communication system therefore provides a communication service under the wireless WAN protocol that is an alternative to traditional mobile communications.

Abstract: The disclosure is related to a method and a system for adjusting a communication channel based on a signal scan result. The system includes wireless gateway modules, a wireless transceiver module and a control circuit. The control circuit determines whether or not the wireless transceiver module conducts any transmission task. The wireless transceiver module is activated to scan signals over a selected frequency when it is available. Multiple scan results can be obtained when the scanning process is repeatedly conducted in different frequencies. Signal information is recorded in a signal scan table. Thus, if the system determines the frequency needs to be adjusted based on a transmission status, one of the frequencies recorded in the table can be chosen and set for the wireless gateway module and a transmission frequency for a terminal node is modified.

Abstract: The disclosure is related to a method and a system for long-distance full-duplex wireless communication. The system is mainly composed of a control circuit, at least one wireless transmission module and one or more wireless gateway modules. The wireless gateway module can receive data from a terminal node via one of multiple channels. The control circuit instructs a wireless transmission module to transmit data. The system utilizes the wireless transmission module to deal with the data from the gateway modules. In the method, in order to achieve full-duplex communication, the system obtains transmission parameters of every terminal node, sets up a transmission schedule with respect to signals having various frequencies within designated time slots according to the operating environment of the node, assigns a transmission priority within the time slots and stores the setting in the node.

Abstract: The disclosure is related to a multi-gateway communication method. The method is applied to a wireless gateway system that includes multiple nodes including a number of gateways. A root gateway is provided among the gateways. When a gateway receives an uplink data from a node, the uplink data is transmitted to a backend server if the gateway is the root gateway. The uplink data is transmitted to a parent gateway if the gateway is not the root gateway. On the other hand, when the gateway receives downlink data from a node, it is determined if a destination node is recorded in a downlink routing table of a descendant gateway if gateway is not connected with the destination node but with the descendant gateway. If the destination node is recorded in the downlink routing table, the data is transmitted to the descendant gateway; otherwise, the downlink data is discarded.

Abstract: A wireless communication system is comprised of a control circuit, a wireless transmission module and one or more wireless gateway modules. The wireless gateway module receives data from a terminal via a channel. The control circuit performs a control method for instructing the wireless transmission module to transmit the data. The system utilizes the wireless transmission module to deal with the data from the gateway modules, and outputs the data via the module. This framework is a great benefit to the system due to its scalability and high performance. In the method, the wireless gateway module receives data, the control circuit computes a transmission time and generates a transmission request, the request and the data are transmitted to a transmission queue and then to the wireless transmission module, and the wireless transmission module determines a transmission channel for transmitting the data.

Abstract: A wireless communication system is comprised of a control circuit, a wireless transmission module and one or more wireless gateway modules. The wireless gateway module receives data from a terminal via a channel. The control circuit performs a control method for instructing the wireless transmission module to transmit the data. The system utilizes the wireless transmission module to deal with the data from the gateway modules, and outputs the data via the module. This framework is a great benefit to the system due to its scalability and high performance. In the method, the wireless gateway module receives data, the control circuit computes a transmission time and generates a transmission request, the request and the data are transmitted to a transmission queue and then to the wireless transmission module, and the wireless transmission module determines a transmission channel for transmitting the data.

Abstract: A diet ingestion analyzing method is provided. The diet ingestion analyzing method includes the following steps. A plurality of nutrition amounts of a plurality of diet records are calculated according to a food nutrition database. A plurality of specific diet records corresponding a specific time are obtained from the diet records. A nutrition ingestion ratio of a total of a plurality of nutrition amounts of the specific diet records to a total of the nutrition amounts of the diet records is generated. A nutrition recommendation is generated according to a nutrition recommended range and the nutrition ingestion ratio. A plurality of selected records is selected from the specific diet records. Whether each of a plurality of nutrition amounts of the selected records is abnormal or not is determined according to the nutrition recommendation. A diet model is constructed and an abnormal food is marked according to the selected records.

Abstract: A method for estimating voltage stability, includes establishing a multi-port equivalent model and the measurement-based equivalent impedance; calculating the reactive power response factor through two consecutive samples from wide-area phasor measurement unit measurement; finding the mitigation factor; constructing the modified coupled single-port model with the modified impedance and voltage; and using the modified maximal loading parameter for voltage stability assessment.