Fire monitoring system user information transmission device Data Acquisition wireless liquid level pressure Sensor IoT terminal

https://zhuanlan.zhihu.com/p/1982825186521813147
As a professional provider of IoT data acquisition solutions and an expert in industrial IoT data acquisition, the editor of Shanghai Data Acquisition IOT Technology Co., Ltd， (daq-iot) hereby presents the following introduction, and sincerely welcomes discussions and exchanges.
Supported Communication Interfaces: CAN, RS485, Mbus, 4–20mA, Profibus, CC-Link, HART, digital I/O, etc.
Industrial Protocols: Modbus RTU/TCP, HJ212, IEC104, DLT645, DLMS, IEC61850, MQTT, etc.
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indicator item
Compatibility function
contact method
storage
battery
Indicator requirements
User information transmission device
The equipment should support IoT transmission for major domestic and international fire protection host brands such as Lida, Haiwan, Beida Qingniao, Siemens, and Guotai Yian in the current market, and have good compatibility functions.
Should support communication methods: 4G communication, Ethernet communication: Should support alarm volume:>70dB; Should support alarm methods: sound and light alarm; Should support silencing function: Should support self checking function: Has local fault detection function, automatically detects main and backup power supply faults, communication faults with the system and monitoring center.
Equipment operation records should be stored in non-volatile memory such as ROM, EPROM, FLASH, etc.: with a resend mechanism, records should be backed up, and their retention period should not be less than 1 year; The device should have the following interfaces:>3 channelsRS485Data interface,>3-channel 232 data interface, ≥ 2-channel switch input interface, ≥ 2-channel switch output interface,>1-channel Ethernet RJ45 interface,>1-channelCAN bus interface,>1 220V power interface
Built in lead-acid battery: nominal voltage 12V: float charging voltage 13.4-13.8V: capacity ≥ 5Ah; terminal block 6.35x0.8mm; Working temperature -10 ℃~+55 ℃: Working humidity ≤ 95% RH (no condensation).
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Indicator requirements
Wireless liquid level monitoring terminal
contact method
stability
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Communication method: Should meet 4G orNB-IotCommunication, with built-in 3-year data usage; Data Acquisition: Should support liquid level values.
Range: 0~5m; Overload capacity:>200% FS; Measurement accuracy: ≤+0.5% FS; Working power supply: DC3.0V Lithium battery: Battery capacity: ≥ 12Ah; Battery life:>3 years (depending on actual application); Annual stability: ≤ 0.2% FS; Protection level: Should support P66 host/IP68Sensor; Working temperature: -20 ℃~+70 ℃ ℃; Storage temperature: -20 ℃~70 ℃; Working humidity:<95% RH (no condensation); Installation method: Wall mounted or bracket mounted.
Indicator requirements
Wireless pressure monitoring terminal
Communication method: Should meet 4G or NB IoT communication, with built-in 3-year data usage; Data Acquisition: Should support pressure values.
contact method
Range: 0~2.5MPa; Overload capacity:>200% FS; Measurement accuracy: ≤+0.5% FS; Working power supply: DC3.0V Lithium battery: Battery capacity: ≥ 12Ah; Battery life:>3 years (depending on actual application); Annual stability: ≤ 0.2% FS: Protection level: Should support P66 host/IP68Sensor: Operating temperature: -20 ℃~+70 ℃; Storage temperature: -20 ℃~70 ℃; Working humidity: ≤ 95% RH (no condensation); Installation method: It should support threaded fixed installation.
scope of work
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Indicator requirements
IoT Data Acquisition Terminal
Communication method: Supports 4G communication and has built-in 3-year data or Ethernet.
interface
Antenna interface: Should support IPEX base * 1 (main antenna * 1); Serial port interface: Should support RS485: Output interface:>4 channels (10A/AC250V): Input interface:>4 channels (dry contact): Operating voltage range: DC9.0V~36.0V: Operating temperature: -25 ℃ -+70 ℃; Environmental humidity: 5~95% RH (no condensation)