1: The smart substation went out of the pilot period and entered a large-scale rollout period;
2: The intensity of the transformation and upgrading of rural power grids continued to increase, driving the continuous improvement of the distribution industry's economy;
3: UHV tendering is expected to accelerate and the degree of prosperity will increase significantly.
Smart substation investment will exceed 300 billion yuan, smart substation sounded offensive horn
The State Grid has completed the bidding for two batches of pilot projects for a total of 74 smart substations. The non-pilot projects have also begun bidding, and the smart substations have begun to enter a large-scale rollout period. During the 12th Five-Year Plan period, the investment in smart substations will exceed 300 billion yuan. About 1,100 intelligent transformer substations with voltages of 110 kV and above and about 1000 substations are intelligently reconstructed. The demand for smart substation protection equipment and monitoring systems exceeds RMB 12 billion, and the demand for on-line monitoring systems exceeds RMB 6 billion. The industry has entered a boom cycle.
In the next three years, the growth rate of agricultural investment in the rural area will exceed 15%, driving demand for distribution equipment
The transformation and upgrading of rural power grids has risen to the national strategic level. From the middle of 2011, rural power grids have entered a large-scale investment period. It is expected that the agricultural net investment growth will exceed 15% in the next three years, and the transformation of rural power grids will promote the upgrading of the urban network. Acceleration, the demand for distribution equipment products will continue to grow.
The annual average investment of intelligent power distribution exceeds 150 billion yuan, and the use of power automation is the next investment focus.
During the 12th Five-Year Plan period, the two networks will invest more than 150 billion yuan in the intelligent power distribution industry each year; the total investment in distribution automation systems will exceed 41.2 billion yuan, and the total investment in electricity automation systems will exceed 97.8 billion yuan. Products will usher in rapid development opportunities.
UHV RMB 530 billion is no longer distant
During the 12th Five-Year Plan period, the two networks will invest about 530 billion yuan in the construction of UHV power transmission projects, of which UHV DC investment quota will be approximately 231.1 billion yuan, and UHV AC investment quota will be approximately 298.9 billion yuan; in the earlier period, the U.S. The pace of high-pressure propulsion has slowed down. With the approval of the second UHV line in Shanghai and the acceptance of the expansion project for the Jindongnan UHV line, the State Grid has accelerated the pace of UHV propulsion. It is expected that after the expansion project passes the load test operation, UHV The tender will be accelerated and the demand for related equipment will bring real benefits.
What is 2.4g wireless module?
2.4g line module operating frequency in the range of 24400-2484mhz, can communicate through the scanning protocol, air rate up to 1Mbps, output power up to +4dBm, the module has the advantages of low power consumption, cost-effective. Movingcomm's current 2.4g antenna modules are: IOT04, IOT05, IOT09, IOT18, IOT60, etc. Users can choose a variety of modules with a transmission distance of 50-500 meters according to cost considerations.
Second, the role of 2.4g wireless module
Function 1, for the formation of a star topology wireless communication network, and must be a multi-point star topology, some extraordinary places need wireless communication. On the one hand, the transmitting and receiving module is cheap, and the cost of forming the star topology is relatively low. On the other hand, the transmitting and receiving module can adopt the modular design, which is small in size, easy to use and easy to integrate. For the wireless network with low communication speed and close distance, the transmitting and receiving module is very practical.
Function 2, for wireless multi-channel (parallel) control. Such as complex remote-controlled robots, some places require multi-channel (parallel) control. One method is to use the receiving module to directly connect to the decoder, and then connect to the relays and other electronic components to drive the subsequent controlled object; the other method is to use the receiving module to connect to the single chip microcomputer, and after the data is disposed of, the single chip microcomputer is connected to the relays and other electronic components to drive the subsequent controlled object. Usually a pair of transmitting and receiving modules can achieve up to six parallel wireless control, if the required number of channels is greater than six, you can use multiple pairs of transmitting and receiving modules, and work at the same time to meet the actual needs.
Function 3, used for general serial port, RS232 antenna data transmission, there are usually many control instruments and equipment using serial port, and communication with these devices must meet the requirements of serial port. In some extraordinary places, when the industrial control site must use the antenna transmission mode, it is natural to choose the transmitting and receiving modules mentioned in this article, but it must be explained here that to use this communication mode, the corresponding software must be prepared at the transmitting end and the receiving end respectively to achieve the conversion of file formats, in order to achieve the purpose of wireless communication, if the communication system is full-duplex. It can be achieved by using two pairs of transmitting and receiving modules, working simultaneously.
Third, 2.4g wireless module application field
2.4G wireless module is widely used in wireless health sports products, wireless mouse and keyboard, product information push, wireless remote sensing, wireless ranging system, alarm security system, smart home, toy control, tire pressure monitoring and other fields. With the 2.4G wireless module, all the whole house wireless smart home can be linked together, you can control all the smart home devices through the link of the network, and then you can control the switch of all the whole house wireless home, adjust the brightness of the lamp, adjust the rise and fall of the curtain, etc., through the continuous innovation of technology, The whole house wireless smart home can be controlled by a small white robot voice, can be controlled by a smart scene panel, can be controlled by sensors and so on.
Four, 2.4g wireless module how to choose antenna
In general, the 2.4g wireless module requires an impedance of 50 ohms, a red wire used with 2.4g, a 2.4g folded rod antenna, a 2.4g gold-plated straight head rod antenna, a 2.4g gold-plated elbow rod antenna, and a 2.4g small suction cup antenna. These antennas are special antennas designed for 2.4g wireless communication system, antenna standing wave ratio performance is good, small size, clever structure, easy installation, stable performance, with good anti-vibration and aging ability.
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Shenzhen MovingComm Technology Co., Ltd. , https://www.movingcommiot.com