6 results about "RS-485" patented technology

The utility model relates to an intelligent batch feeder for aquaculture. The intelligent batch feeder comprises a storage bin, an integrated control box, a weighing metering device and a connecting piece used for fixing the storage bin and the integrated control box. The integrated control box comprises a box body, a main control board, a bait control module, an air pressure control module and a display module; the storage bin is mounted above the integrated control box through the connecting piece; the weighing metering device is fixedly mounted below the integrated control box; the main control board is electrically connected with the bait control module, the air pressure control module, the display module and the weighing metering device; the bait control module is communicated with the air pressure control module through a pipe fitting. By improving the discharging channel of the storage bin, the accurate metering device and closed-loop feedback control, accurate feeding is achieved, and material accumulation and material blocking are avoided. A material shortage and blockage detection alarm mechanism is built in, and a positive-pressure dry gas flow regulating valve is arranged for preventing moisture, so that stable operation and long service life of the equipment are guaranteed. An RS-485 interface is integrated to support remote monitoring and data interaction, the automation level and the management efficiency are improved, and the refined feeding requirement is met.

The utility model discloses an industrial control board based on STM32F103 singlechip, it includes main control chip, RS 485 level conversion circuit, digital I / O circuit and LED pilot lamp, and RS 485 circuit realizes efficient level conversion through three stage anti -interference framework magnetic pearl filtering, photo -coupler isolation, TVS protection, and digital I / O circuit adopts photo -coupler and isolation amplifier to enhance signal stability, and is equipped with LED pilot lamp feedback state, and the application effectively reduces the code rate less than 10 ‑7 , reduces signal dithering, and the temperature drift attenuation is only 2.1%, is suitable for industrial automation and intelligent manufacturing system, has simple structure, low in cost, stable performance and the advantages such as.

Communication system for the unidirectional, bidirectional or multidirectional transfer of control system data between an electronic control device for controlling gates or gate drives and a mobile communication device. a control device for controlling gate drives with at least one data interface, a mobile communication device with a radio communication interface for data transfer using a Bluetooth standard, and a data transmission device with a radio communication device for data transfer using a Bluetooth standard, where The data transmission device can be connected to the control device via the data interface, and Control system data can be transferred from the data transmission device to the mobile communication device and / or from the mobile communication device to the data transmission device. characterized in that data transmission takes place via an RS 485 interface, and that the data transmission device is formed as a compact peripheral device, namely as a stick.

The utility model discloses an adaptive fault tolerance and information reading circuit of RS 485 bus communication adopts singlechip, RS 485 communication transceiver, display screen and other key components, realizes the automatic switching of A, B line in 485 communication through singlechip control relay, and utilizes display screen real -time display equipment information. Effectively avoid the communication failure of A, B line connection mistake, improve system fault tolerance, guarantee 485 communication quality, simplify the step of viewing 485 bus equipment information simultaneously, provide strong support for the stable operation of communication system in the field such as industrial control, have good practicality and popularization and application value.

The utility model discloses a locomotive position identification module. The locomotive position identification module comprises a core board used for data processing and logic judgment; the bottom plate is connected with the core plate, and the bottom plate is provided with a power supply unit which has a power supply function; the wheel sensor pulse signal receiving unit is arranged on the core board and is used for receiving a pulse signal sent by a wheel sensor; the bottom box door control unit accurately controls opening and closing of a bottom box door of the system in real time based on the logic judgment result of the core board; and the RS-485 communication unit is arranged on the bottom plate and is used for transmitting the state of the magnetic steel to a server in real time through RS-485 communication. Logical judgment is carried out by receiving pulse signals of the wheel sensors, opening and closing of the bottom box door can be accurately controlled in real time, meanwhile, the state of the magnetic steel is transmitted to a server in real time through RS-485 communication, and the automation level and the intelligent level of related systems of a locomotive are effectively improved.

The utility model discloses a feed premixing closed-loop control system with linkage of a variable-frequency auger and a weighing sensor, which is characterized by comprising a storage control module, a variable-frequency driving module, a weighing sensing module, a central control module and a communication network module. The central control module is connected with the material storage control module, the variable frequency driving module and the weighing sensing module, the material storage control module, the variable frequency driving module and the weighing sensing module are connected through an RS-485 bus, the central control module serves as a master node of the RS-485 bus, and the material storage control module, the variable frequency driving module and the weighing sensing module serve as slave nodes. The communication network module is connected with the central control module through a UART interface. The closed-loop control improves the mixing precision and ensures the feed quality; the data security is ensured by the redundant communication design; intelligent anti-blocking improves the production efficiency; the service life of equipment is prolonged; remote operation and maintenance are convenient to manage, and management efficiency is improved.