Voltage-current signal sensor circuit
A signal sensor, voltage and current technology, applied in voltage/current isolation, measurement of current/voltage, instruments, etc., can solve problems such as loss, false alarm or omission, fire, etc., to improve anti-electromagnetic interference ability, increase communication The effect of distance, enhanced accuracy
Pending Publication Date: 2017-11-10
ZHEJIANG EIT ELECTRON
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[0004] However, the existing electrical fire monitoring equipment will be equipped with a gas sensor for sensing toxic and harmful gases, a smoke sensor for sensing smoke, and a temperature sensor for sensing the temperature value and the rate of temperature change. Once the electrical fire monitoring equipment fails, it is prone to false alarms or missed alarms, resulting in false fire alarms or no alarm when a fire occurs, resulting in heavy losses
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[0028] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings; the description of the exemplary embodiments is for exemplary purposes only, and by no means limits the present invention and its application or use.
[0029] See Figure 1 to Figure 4, the voltage and current signal sensor circuit, and the power supply module are respectively connected to the central processing operation unit module, the man-machine dialogue unit module, the communication processing module and the signal acquisition unit module and provide power to them; the signal acquisition unit module can control the lines to be detected The voltage or current is sampled, then filtered, and then input to the central processing operation unit module connected to it; the central processing operation unit module receives the information transmitted by the signal acquisition unit module and performs analysis, processing and judgment to realize th...
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The invention discloses a voltage-current signal sensor circuit comprising a power supply module, a signal acquisition unit module, a central processing and operation unit module, a communication processing module, and a human-machine dialogue unit module. The signal acquisition unit module collects voltage or current information; an amplification and filtering circuit carries out processing on the information; the processed information is sent to the central processing and operation unit module connected with the signal acquisition unit module to carry out determination, analysis, and processing on the received information. Therefore, real-time switching displaying and host communication transmission of the voltage-current signal sensor are realized; and monitoring on the state of electric control fire monitoring equipment is ensured.
Description
technical field [0001] The invention relates to the field of sensor circuits, in particular to voltage and current signal sensor circuits. Background technique [0002] The technical background related to the present invention will be described below, but these descriptions do not necessarily constitute the prior art of the present invention. [0003] The electrical fire monitoring equipment consists of a computer as the main control host computer, which cooperates with fire leakage alarm system terminals, residual current detectors and several circuit breakers with shunt tripping functions, and is connected to the main control host computer through the second bus. Form a complete fire leakage alarm system; the main control machine has multiple functions such as inspection, monitoring, sound alarm, printing and query system, and completes intelligent management; the system adopts a distributed control scheme, and a microcomputer can monitor 512 A fire leakage system termina...
Claims
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Login to View More IPC IPC(8): G01R19/00G01R15/18
CPCG01R15/18G01R19/00
Inventor 陶章亮刘真强林素欧聂和东吴金海
Owner ZHEJIANG EIT ELECTRON