Warmly celebrate our company's power clock system in Shaanxi extended oil Anyuan Chemical Co., Ltd. successfully put into operation, to the entire chemical plant for the whole network time to be unified, for the chemical plant hydrogen catalyst workshop, Zinc Oxide desulphurization agent workshop, dechlorination agent workshop, transformation catalyst workshop, transformation catalyst workshop and so on need accurate time to provide accurate and effective time letter.Interest.

Shaanxi Yanchang Anyuan Chemical Industry Co., Ltd. is responsible for the development and construction of mineral resources of Yanchang group. In accordance with the authorization and overall strategic plan of the extended group, Shaanxi Yanchang Petroleum Anyuan Chemical Co., Ltd. is mainly responsible for mineral resources exploration and development and construction operations, coal chemical projects investment and operation, power project construction and operation, and the development of new power industry. The operation of these projects is inseparable from an accurate time, when the power clock can provide standard time information.

At present, most of the time signals used in the synchronous clock of the power system in the chemical plant adopt the GPS of the US as the time source, and the safety factor is relatively low. The GPS satellite was originally owned by the US military. After opening to the civilian market, it adopted a free service strategy and did not ask the end users to obtain the cost of use, but it did not guarantee any quality of service, that is, positioning accuracy and timing accuracy. At the same time, in order to ensure the interests of its own and its allies, the United States adopts the policy of "selective availability" to other countries, which reduces the positioning accuracy and timing accuracy. Therefore, the timing of GPS satellite timing is insecure and unreliable.

The timing of the power system using the Beidou satellite has the following characteristics and advantages:

High security: the Beidou system is controlled by China independently. The GPS system is controlled by the US military. The strategic security of the Beidou system is higher than that of the GPS system, which is suitable for the application of key departments.

The timing system is good: the Beidou satellite can provide stable time service for single satellites, and the geostationary orbit geostationary satellite can ensure that the timing equipment can always receive the same satellite, so as to ensure that there is no need to switch between the Beidou satellite and the GPS satellite during the whole time service, which ensures the stability and reliability of the time service. GPS uses Leo motion satellites to avoid the influence of satellite switching on timing accuracy.

The signal is easy to receive: the coverage is large, and there is no communication blind area. The Beidou system covers China and its surrounding countries and regions. The satellite uses synchronous orbit, and the orbit is higher than GPS, so it is easy to receive. The state and the electric power industry attach great importance to the application of the Beidou satellite timing in the power system, and have formulated the GB / b standard of the power time synchronization system. The southern Power Grid Corp also issued the enterprise standard in 2012, and explicitly requested the Beidou time service. The power synchronization clock based on the timing of the Beidou satellite and the timing of the GPS satellite is combined with two kinds of time datum. The core technologies such as intelligent estimation, adaptive filtering and autonomous integrity monitoring are used to realize the multi time source automatic switching and time integration, which has higher safety and reliability.

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