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327results about How to "Switch in time" patented technology

Control method for single-point self-organizing traffic signal based on wireless sensor network

InactiveCN101493992AEnough collectionAddressing the lack of accurate traffic dataRoad vehicles traffic controlTraffic signalGreen-light
The invention relates to a single-point self-organization traffic signal controlling method based on a wireless sensor network. The method comprises the following steps: (1) a vehicle node is arranged in the interior of a running vehicle, information collecting nodes are arranged at a road side, and converging nodes are arranged at a crossroad; (2) (Eta, Theta) represents a driveway where the vehicle is in, and every driveway is allocated with a phase p(Eta, Theta) to construct a candidate phase set; (3) traffic data is collected in real time; (4) discrimination is carried out on traffic status of the crossroad, if a non-congestion status is discriminated, an original single time allocation scheme is implemented, but if not, Step (5) is carried out; (5) when waiting time of a certain direction exceeds the upper limit of waiting time, the flow direction with maximum waiting time is selected as a key flow direction which is otherwise determined by calculating pkey (Eta, Theta), green light time is allocated for a planned release phase where the key flow direction is and the wayleave of a green light is granted. The method can provide real-time accurate traffic data detection and realize good controlling result in traffic jams.
Owner:ZHEJIANG UNIV OF TECH

Master-standby redundancy replication method based on SQLite databases

The invention relates to a master-standby redundancy replication method based on SQLite databases. The method includes that database management service processes are packaged on the SQLite database and are responsible for monitoring states of the SQLite databases and receiving a database manipulation request sent by an application layer; an SQLite database synchronizing function is packaged in the SQLite service to achieve the master-standby redundancy replication of the SQLite database; master-standby databases can perform automatic shift according to states of the SQLite databases, only service processes on the master databases receive applied database modification requests, and the master databases are synchronized to the standby databases; and the service processes are also responsible for monitoring states of the SQLite databases and providing dump functions of SQLite data files to process recovery of failure databases, and the service processes compare differences of the SQLite data files on the databases and dump inconformity portions to a corresponding sever to guarantee uniformity of data of the databases. According to the master-standby redundancy replication method, on the basis of SQLite, the master-standby redundancy functions of the databases are achieved, the uniformity of the data of the databases is guaranteed, and stability and reliability of the online system data are guaranteed.
Owner:NARI TECH CO LTD

Gray release management method, system and device and storage medium

The invention relates to the technical field of gray release, and provides a gray release management method, device, equipment and system. The method comprises the steps that a gray release managementplatform sets a gray distribution proportion, and synchronizes the gray distribution proportion to a publishing module; when the version distribution is carried out, the version distribution module calculates the target number of the candidate grayscale servers according to the grayscale distribution proportion and the number of the production servers; the publishing module selects a target graylevel server from the candidate gray level servers, and after a new version is published, the publishing module synchronizes the IP address of the gray level server subjected to gray level publishingto the shunting engine; and the distribution engine divides users of each version into a plurality of user groups according to the gray level distribution proportion and the IP addresses of the gray level servers, marks the types of the user groups, confirms the server type corresponding to each user group, and distributes the service data streams of different versions to the corresponding user groups according to the types of the user groups to which the users belong. By adopting the scheme, the intelligent shunting can be realized, and the error probability of manual shunting can be reduced.
Owner:PING AN TECH (SHENZHEN) CO LTD

Intelligent humidity regulating fruit and vegetable box of high-humidity refrigerator

The invention discloses an intelligent humidity regulating fruit and vegetable box of a high-humidity refrigerator. The intelligent humidity regulating fruit and vegetable box comprises a box. An upper cover plate is arranged on the top of the box, a plurality of moisture-permeable through holes are formed in the upper cover plate, and an automatic humidity regulating functional material block is arranged on the upper surface of the upper cover plate and is positioned at the moisture-permeable through holes; a humidity regulating box covers the automatic humidity regulating functional material block, and the bottom of the humidity regulating box is connected onto the upper cover plate; an automatic regulating door is hinged to the humidity regulating box; the middle of the side, which faces the automatic regulating door, of the automatic humidity regulating functional material block is protruded to form an ejecting protrusion, a gap is reserved between the ejecting protrusion and the automatic regulating door, and a gap is reserved between the top surface of the automatic humidity regulating functional material block and the top of the humidity regulating box. The intelligent humidity regulating fruit and vegetable box has the advantages that moisture of the fruit and vegetable box can be sucked or released by the aid of moisture absorption and swelling characteristics of the automatic humidity regulating functional material block, manual operation can be omitted in humidity regulating procedures, extra energy also can be omitted, the high internal humidity of the fruit and vegetable box can be timely and effectively maintained, condensed water generated in the fruit and vegetable box can be reduced, and the fresh-keeping capacity of the fruit and vegetable box can be greatly improved.
Owner:HENAN XINFEI ELECTRICAL EQUIP

Updating control method and system for electronic price tag display information

InactiveCN110310174AReduce switching display timeNormal switchDigital data information retrievalBuying/selling/leasing transactionsBase stationDatabase
The invention provides an updating control method and system for the electronic price tag display information, and the method comprises the steps that before the execution time reaches, an AP base station sends a commodity sales template to an electronic price tag according to the identification information in the commodity management information obtained from a server; the electronic price tag stores the received commodity sales template and compares whether the internal time of the electronic price tag reaches the execution time or not; the electronic price tag switches and displays a corresponding sales template according to a comparison result, wherein the commodity management information comprises the electronic price tag identification information of a to-be-switched template and thecommodity sales template, and the commodity sales template comprises the commodity information and the corresponding execution time. The AP base station issues the template in advance, so that the commodity template can be normally and timely switched and displayed without the participation of the AP base station when the execution time reaches, the display switching time is reduced, and in addition, a plurality of price tags are ensured to synchronously refresh the display template.
Owner:上海保资智能科技有限公司

Ground-air wideband communication switching method and system under high-speed moving condition

The invention discloses a ground-air wideband communication switching method and system under a high-speed moving condition. The ground-air wideband communication switching method comprises the following steps that: a current base station acquires aircraft position information and aircraft posture change information from aircraft-mounted terminal equipment; the aircraft-mounted terminal equipment measures and reports the signal quality of the current base station; the aircraft-mounted terminal equipment starts to measure a transmitting signal of a neighboring base station and reports the signal quality of the neighboring base station according to the signal quality of the current base station or a switching measurement request sent by the current base station; the current base station performs cross-region switching from the current base station to the neighboring base station according to the aircraft posture change information, the signal quality of the current base station and the signal quality of the neighboring base station. According to the ground-air wideband communication switching method and system disclosed by the invention, an effective switching decision can be made when the signal strength received by a terminal becomes weak according to position information and gesture information of an aircraft, so that performance reduction caused by ping-pong effect and too late switching decision can be avoided, in-time, effective, quick and smooth switching can be realized, and therefore service quality of ground-air wideband business is finally ensured.
Owner:航广卫星网络有限责任公司

Multi-power switch switching method and device

The invention discloses a multi-power witch switching method and a multi-power switch switching device. In the method, by acquiring locomotive accelerator pedal position information and/or locomotive load factor information, when the locomotive accelerator pedal position information is greater than the upper limit preset value of an accelerator pedal or the locomotive load factor information is greater than the upper limit preset value of a locomotive load factor, a multi-power switch is automatically switched to the maximum torque value and outputs the maximum torque value; and when the locomotive accelerator pedal position information is not greater than the upper limit preset value of the accelerator pedal or the locomotive load factor information is not greater than the upper limit preset value of the locomotive load factor, the multi-power switch outputs the torque value corresponding to the rotation speed of a locomotive according to a power limitation curve corresponding to the position of a selector switch handle, thus, when the selector switch of the locomotive runs in an underloading or medium loading state, and the locomotive needs more power output, the multi-power switch is automatically switched to the overloading position according to the judgment of the accelerator pedal position information and/or locomotive load factor information to ensure that the locomotive runs in the overloading state, so that the multi-power switch of the locomotive can be switched timely and the dynamic property and the economic operation property of the whole locomotive can be guaranteed. Meanwhile, the switching operation of a driver is reduced.
Owner:WEICHAI POWER CO LTD
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