Abstract: Provided test method and apparatus of communication chip, device and medium. The test method of communication chip includes receiving end test method and transmitting end test method. The receiving end test method of the communication chip includes: an idle time slot of the receiving end of the communication chip is detected in a running process of the communication chip; a test vector is generated, and a standard result corresponding to the test vector is generated; a data frame containing the test vector is constructed, and the data frame is sent to the receiving end of the communication chip in the idle time slot to enable the receiving end of the communication chip to process the data frame; and a chip processing result uploaded by the receiving end of the communication chip is received, and the standard result is compared with the chip processing result.

Abstract: A large-load unmanned aerial vehicle (UAV) for plant protection with adjustable spraying swath and pesticide application amount is provided, relating to the technical field of pesticide application of unmanned aerial vehicles. The large-load unmanned aerial vehicle for plant protection comprises a large-load unmanned aerial vehicle, a pesticide box, a variable pesticide application system, and adjustable spraying swath mechanisms, wherein the pesticide box is fixed to landing gears of the unmanned aerial vehicle and is positioned below a control platform of the unmanned aerial vehicle; the adjustable spraying swath mechanisms are arranged on the landing gears, the variable pesticide application system is connected with the pesticide box and the adjustable spraying swath mechanisms, the variable pesticide application system and the adjustable spraying swath mechanisms are electrically connected with the control platform, and the control platform is in communication connection with a remote control handle.

Abstract: Provided herein is a method of preparing a ceramic material, the method including: providing a ceramic gel including a plurality of metal salts and compressing the ceramic gel thereby inducing stress-induced mineralization of the ceramic gel and formation of the ceramic material, wherein the ceramic gel exists in isolated form.

Abstract: Disclosed is a switching network synchronization method, which is applied to a first switching device. The method comprises: receiving a first suspected target ID; the first suspected target ID being an ID corresponding to a suspected target switching device determined by an access device connected to the first switching device according to a first identity number ID; receiving via the access device a second suspected target ID sent by a second switching device; the second suspected target ID being an ID corresponding to a suspected target switching device determined by the second switching device; determining a first target ID according to the first suspected target ID and the second suspected target ID; and the first target ID being an ID corresponding to a target switching device. Also disclosed is a first switching device, an access device and a storage medium.

Abstract: Disclosed is a load balancing method, the method comprising: for an exchange device at every level, before transmitting each cell, querying a unicast forwarding table according to the ID number of a target access device so as to obtain all links accessing the target access device; and in the all links, polling the cell transmitted to the corresponding target access device. Also disclosed are a load balancing device and storage medium.

Abstract: Disclosed is a switching network synchronization method, which is applied to a first switching device. The method comprises: receiving a first suspected target ID; the first suspected target ID being an ID corresponding to a suspected target switching device determined by an access device connected to the first switching device according to a first identity number ID; receiving via the access device a second suspected target ID sent by a second switching device; the second suspected target ID being an ID corresponding to a suspected target switching device determined by the second switching device; determining a first target ID according to the first suspected target ID and the second suspected target ID; and the first target ID being an ID corresponding to a target switching device. Also disclosed is a first switching device, an access device and a storage medium.

Abstract: Disclosed is a load balancing method, the method comprising: for an exchange device at every level, before transmitting each cell, querying a unicast forwarding table according to the ID number of a target access device so as to obtain all links accessing the target access device; and in the all links, polling the cell transmitted to the corresponding target access device. Also disclosed are a load balancing device and storage medium.

Abstract: A kind of anti-adhesion device for a relay. The device can include a control circuit and adhesion detecting circuit of first and second relays, which are used to respectively control power on and power off of the first and second electric heater. Closing a switch of the control circuit of the first and second relays is used to lead out the line and the output elements of the adhesion detecting circuit, to form a detecting loop. An interlocking circuit is bridged between the control circuit of the first and second relay. Therefore the first and second relay won't be closed at the same time, to avoid the fault caused by parallel connection of electric heaters. The adhesion detecting circuit can output a square wave when a relay has adhesion. The square wave avoids mixing with a low level output of the detecting circuit.

Abstract: Provided in the present invention is a system and a method for obtaining indication information. The system comprises: a product device including a control part for obtaining product status information and generating a product status identification based on the same; an information collection part for collecting the product status identification; an information transceiving part for transmitting the product status identification to a server and receiving service information returned from the server; and the server which includes a receiving part for receiving the product status identification transmitted by the information transceiving part, an information processing part for obtaining corresponding service information according to the product status identification, and a transmitting part for returning the service information to the information transceiving part.

Abstract: A kind of anti-adhesion device for a relay. The device can include a control circuit and adhesion detecting circuit of first and second relays, which are used to respectively control power on and power off of the first and second electric heater. Closing a switch of the control circuit of the first and second relays is used to lead out the line and the output elements of the adhesion detecting circuit, to form a detecting loop. An interlocking circuit is bridged between the control circuit of the first and second relay. Therefore the first and second relay won't be closed at the same time, to avoid the fault caused by parallel connection of electric heaters. The adhesion detecting circuit can output a square wave when a relay has adhesion. The square wave avoids mixing with a low level output of the detecting circuit.