Abstract: A heating, ventilation, air conditioning (HVAC) system includes a multi-path expansion device subsystem positioned between a condenser and an evaporator. The multi-path expansion device subsystem includes a flow selector operative to receive a refrigerant from the condenser and selectively deliver the same to a full-load pathway or to a partial-load pathway. The full-load pathway has a modulating valve and a fixed orifice sized for a full-load situation, and the partial-load pathway has a thermal expansion valve (TXV) sized for partial load operation. A controller uses an actuator of the flow selector to choose which pathway is authorized according to certain process logic. Other methods and systems are presented.

Abstract: A heating, ventilation, air conditioning (HVAC) system includes a multi-path expansion device subsystem positioned between a condenser and an evaporator. The multi-path expansion device subsystem includes a flow selector operative to receive a refrigerant from the condenser and selectively deliver the same to a full-load pathway or to a partial-load pathway. The full-load pathway has a modulating valve and a fixed orifice sized for a full-load situation, and the partial-load pathway has a thermal expansion valve (TXV) sized for partial load operation. A controller uses an actuator of the flow selector to choose which pathway is authorized according to certain process logic.

Abstract: The invention relates to an illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition.

Abstract: A metering device is fluidly coupled to the condenser coil. A distributor is fluidly coupled to the metering device. An evaporator coil is fluidly coupled to the distributor via a plurality of evaporator circuit lines. A re-heat coil is disposed adjacent to the evaporator coil. The re-heat coil includes a first fluid connection to the metering device via a re-heat return line and a second re-heat feed line. The re-heat coil includes a second fluid connection to the condenser coil via a connecting line and a condenser intake line. A first check valve is disposed between the connecting line and the condenser intake line. A second check valve is disposed between the re-heat return line and the second re-heat feed line.

Abstract: According to certain embodiments, a system comprises a controller and an HVAC system with components comprising an evaporator unit comprising an evaporator coil, an indoor fan, and a discharge air duct and a condenser unit comprising a compressor, a condenser coil, and an outdoor fan. The system is configured to determine that a first or a second level of evaporator coil freeze risk is present and to communicate an instruction to the HVAC system with a first or a second action to counteract the freeze risk. For example, in certain embodiments, the actions comprise changing the indoor fan speed, changing the compressor speed, and changing the outdoor fan speed.

Abstract: The present invention relates to a visual efficacy determining method for non-colored objects in different light environments, comprising: a) setting light environment; b) placing an object for performing visual recognition of a driver; c) resetting the light environment, and repeating the step b); d) processing visual recognition information data obtained after experiments, and establishing a correlating relationship between visual recognition time and color temperature, color rendering index and brightness parameters of the light environment; and e) performing visual efficiency analysis according to the visual recognition information data processing results. The present invention further provides a system for implementing the visual efficacy determining method for non-colored objects in different light environments, wherein the system comprises a simulated tunnel middle section subsystem, a testing subsystem and a data processing subsystem.

Abstract: Embodiments of this disclosure provide a node diagnosis apparatus and system.

Abstract: A room air purifier comprises housing (9), air filter (100), RFID reader (143), RFID tag (120), and a wireless communication unit (142). A method is how to operating the room air purifier.

Abstract: A heating, ventilation, air conditioning (HVAC) system includes a multi-path expansion device subsystem positioned between a condenser and an evaporator. The multi-path expansion device subsystem includes a flow selector operative to receive a refrigerant from the condenser and selectively deliver the same to a full-load pathway or to a partial-load pathway. The full-load pathway has a modulating valve and a fixed orifice sized for a full-load situation, and the partial-load pathway has a thermal expansion valve (TXV) sized for partial load operation. A controller uses an actuator of the flow selector to choose which pathway is authorized according to certain process logic. Other methods and systems are presented.

Abstract: Embodiments of this disclosure provide an information transmission method and apparatus and electronic equipment. The information transmission method apparatus is used for transmitting a network topology information frame (TI frame) of network topology information, the apparatus including: a transmitting/receiving unit configured to transmit and/or receive a media access control (MAC) layer frame of a network protocol; the network topology information frame (TI frame) is loaded into a payload of the MAC layer frame. According to this disclosure, transmission modes of the network topology information may be made more flexible.

Abstract: The invention relates to an illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition.

Abstract: The present invention relates to the technical field of wireless communications. Disclosed are a physical cell identifier allocation method and an apparatus. In a scheme, when allocating a physical cell identifier, first determining a degree of interference of each type of an adjacent cell to a main cell for which a physical cell identifier needs to be allocated, and then performing allocation for the main cell based on a remainder value corresponding to a minimum degree of interference, thus implementing effective reduction of reference signal interference and improving effectiveness of reducing reference signal interference.

Abstract: Embodiments of this disclosure provide a node diagnosis apparatus and system.

Abstract: Embodiments of this disclosure provide an information aggregation method and apparatus and a system. the method includes: a requestor generates an aggregation request, the aggregation request comprising a source address, a destination address, a requested target device, requested information, and a requested aggregation action; wherein, the source address is an address of the requestor, and the destination address is an address of a receiver, there existing a security relationship between the requestor and the receiver; the requestor encrypts the aggregation request according to the security relationship between the requester and the receiver; and the requestor transmits the encrypted aggregation request to the receiver, and records the aggregation request in a request list. With the embodiments of this disclosure, information may be aggregated between mutually trusted devices in a secure manner. Hence, a device may aggregate information for an untrusted device without security concern.

Abstract: The present invention relates to a visual efficacy determining method for non-colored objects in different light environments, comprising: a) setting light environment; b) placing an object for performing visual recognition of a driver; c) resetting the light environment, and repeating the step b); d) processing visual recognition information data obtained after experiments, and establishing a correlating relationship between visual recognition time and color temperature, color rendering index and brightness parameters of the light environment; and e) performing visual efficiency analysis according to the visual recognition information data processing results. The present invention further provides a system for implementing the visual efficacy determining method for non-colored objects in different light environments, wherein the system comprises a simulated tunnel middle section subsystem, a testing subsystem and a data processing subsystem.

Abstract: Embodiments of this disclosure provide a method and apparatus for evaluating node performance and a system. The method includes: real-time communication related information of a network node is collected; normalization on the test data within the predetermined period of time is performed by using preobtained best data vectors and worst data vectors, so as to obtain normalized multi-dimensional vectors of the test data within the period of time; and the normalized multi-dimensional vectors of the test data within the period of time is weighted, distance from the weighted normalized multi-dimensional vectors to the best data vectors is calculated, and a grade of the network node is determined according to the distance and a predefined monotonically decreasing function.

Abstract: This invention relates to an illumination standard calculation method for a tunnel middle section based on safe visual recognition: (a) Setting the light environment of the tunnel middle section; (b) Placing a target object in the tunnel middle section; (c) Making a driver drive a motor vehicle at different speeds toward the target object, and measuring the visual recognition distances D required by the driver to visually discover the target object at different speeds; (d) Resetting the average brightness L of the tunnel middle section and repeating the steps (b) and (c) to obtain a plurality of different sets of visual recognition distances D and corresponding brightness values L; (e) Using the S model to fit the data of the plurality of sets of visual recognition distances D and brightness values L to obtain the formula of the relational model of D and L to be L=0.683/(5.

Abstract: Embodiments of this disclosure provide a trouble diagnosis method and apparatus and a system. The method includes: acquiring channel-related information on a coordinator and terminal equipment in communication with the coordinator; selecting multiple indices in the channel-related information, and calculating statistical values of the multiple indices in a predetermined period of time; and performing trouble diagnosis by using the statistical values and pre-stored training data, so as to obtain a trouble diagnosis result corresponding to the period of time.

Abstract: Embodiments of this disclosure provide a parameter determination method, an interference classification and identification method and apparatuses thereof. Wherein, the interference classification and identification method includes: for Q moments, detecting K first network parameters at each moment, so as to obtain a third parameter sequence constituted by the K first network parameters at the Q moments; and respectively determining classes of interference states existing at the Q moments according to the third parameter sequence and a hidden Markov model. Furthermore, the embodiments provide a method for determining parameters in the above hidden Markov model. With the method of the embodiments, the parameters in the above hidden Markov model may be easily determined. Wherein, by simplifying a parameter sequence based on a threshold value, the parameter sequence is made to be a limited set, which may lower the complexity of determining the parameters in the hidden Markov model.

Abstract: The present invention generally relates to methods for modifying and/or producing superhydrophobic surfaces. In particular, the present invention relates to reactive superhydrophobic surfaces which can be modified so as to produce superhydrophobic surfaces having patterns of different chemical functionalities or physical properties such as superhydrophilic-superhydrophobic micropatterns, and uses of these patterned superhydrophobic surfaces as self-cleaning coatings, anti-fouling coatings, or slippery coatings, or for chemical, biological and diagnostic applications, as well as methods for producing the same.