Substation, the communication management machine used by the dispatching station - high manufacturing cost has made many manufacturers and users discouraged, how can we effectively control the cost, and can not significantly reduce the performance of the product, and greatly improve the cost performance? This article teaches you to solve.
The communication management machine is generally used in substations, dispatching stations, controlling the downlink RTU equipment through the control platform, realizing the collection of information such as remote signaling, telemetry, remote control, etc., and feeding back the message back to the dispatching center, and then the control center administrator passes the message. Process the analysis and select the command that will be executed to reach the goal of the remote output scheduling command.
First, the communication management machine is also called DPU.
The utility model has a plurality of downlink communication interfaces and one or more uplink network interfaces, which is equivalent to a front-end computer, that is, a monitoring computer, is used for collecting and synthesizing communication data of all intelligent devices in one substation, and uploading them to the upper-level master station system in real time ( The monitoring center server and DCS) complete remote data transmission and remote monitoring functions. On the other hand, it receives the command issued by the server or DCS, and forwards it to the intelligent series unit in the substation, and completes the parameter setting of the branching and closing remote control or device of each switch device in the station to realize the remote control and remote adjustment function. It should also be equipped with multiple serial interfaces to communicate with other smart devices in the station. As shown in Figure 1.
Second, the traditional communication management machine programThe traditional power communication management machine is mostly realized by X86 architecture industrial computer, which requires 7X24 hours online service, resulting in high cost and high power consumption of the whole set of products. The installation and use need to consume a lot of human and material resources, and the sudden system crashes. It is also the use of the user who has to be afraid.
Third, the functional requirements of the communication management machine(1) Multi-network function, the user can configure different communication interface cards according to the actual use of the network to form a variety of network structures required by the user:
â— Can form an RS232 full-duplex star network structure;
â— Half-duplex bus structure that can form RS485 bus;
â— A main bus structure that can form a CAN bus;
â— The LAN can be formed by the Ethernet function provided by RJ45.
(2) Multi-serial port function The communication management machine has the function of flexibly configuring the serial port. It can configure the serial port according to the user's requirements. The configuration range is 1-23, and the number of serial ports is different for different interface cards.
The IoT-9608 is an industrial control board based on the AM335x series processor developed by ZLG Zhiyuan Electronics. The board provides a variety of functional interfaces, and the interface passes strict anti-interference and anti-static tests. The power interface is tested by ±4KV surge and group pulse. The signal interface is tested by ±2KV surge and group pulse. Each port passes the ±6KV static test. It can work stably in the industrial temperature range of -40 ° C ~ +85 ° C to meet the requirements of a variety of demanding industrial applications, especially in areas where communication is highly demanding, such as factory automation, mechanical equipment control, intelligent transportation, Nautical vessels, power petrochemical monitoring, etc. As shown below:
Its resources include:
â— Standard AM3352 processor with 800MHz operating frequency;
â— Onboard 512MByte DDR3 SDRAM, 256MByte NAND Flash;
â— Road Ethernet communication interface, one way 100M network, one way Gigabit network;
â— 2-way USB HOST communication interface;
â— 9-channel UART communication interface, 8 channels are taken out, and 1 channel is used for on-board wireless modules, all of which are TTL level outputs;
â— 18 & TImes; GPIO, of which 4 GPIOs can be reused as SPI interfaces;
â— 2 channels CAN interface, TTL level output, can be reused as GPIO;
â— 8-channel ADC interface;
â— 1 channel SD Card interface;
â— Support WiFi, 3G, GPRS, ZigBee, RFID wireless communication;
â— Support RTC, independent hardware watchdog timer.
Product advantages:
1. Stylish, portable, practical and convenient home charger
2. 6-port USB emergency charger, which can be used safely for tablet computers and can charge 6 devices at the same time
3. Built-in IC chip and fuse, protection: over current, over voltage, short circuit protection
4. The latest release, new design, beautiful appearance, high efficiency and energy saving, the best alternative to the original charger
5. Chargers for MP3, MP4, GPS, PDA, e-books, mobile phones, digital cameras, tablets, etc.
Features
(1) Overcharge protection
(2) Over discharge protection
(3) Short circuit protection
(4) Voltage stabilization protection.
(5) Automatic identification of mobile phone current protection.
1. Connect up to 6 USB devices at a time, and each device will receive a unique and tailor-made charge. The maximum output power of QC3.0 is 18W, which can optimize the charging of all devices.
2.2QC3.0+4 ports total 6 charging ports, which can charge 6 devices with a total power of 84W at the same time
3. With multiple protection safety systems, the product will automatically adjust the charging current according to the needs of the device being charged. Automatically detect and adjust the charging current to charge your device at the fastest speed.
One machine for multiple uses
The USB charger can charge 6 devices at the same time, and the smart recognition technology will detect and provide the best charging level for each of your devices.
The maximum output current of a single USB port is 2.4A. 2QC3.0 has 6 charging ports, which can charge 6 devices at the same time without causing shunting or reducing power. The USB charger can quickly charge your devices. Smartphones and tablets can receive up to 2.4 amps of current, so you can use the device as you like while charging.
Over-current, over-charge, and short-circuit protection will make charging safe, without any risk of overheating or damaging the device. Passed CE/FCC/ROSH/PSE/CCC certification. Through safety certification to ensure safe use.
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