Automatic energy supply wireless transmission pyroelectric sensor and fire alarm system
A technology of fire alarm system and pyroelectric sensor, which is applied in the field of wireless transmitting pyroelectric sensor and fire alarm system, can solve problems such as unfavorable large-scale networking application, short service life, and inability to supply power to the alarm.
Active Publication Date: 2012-05-02
HANGZHOU INNOVATION RES INST OF BEIJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology
[0002] At present, there are power problems in the field environment, which are not suitable for the application of conventional fire alarm systems. Traditional active sensors have problems such as requiring an external power supply or battery, and short service life. Unusable anywhere, so not conducive to large-scale networked applications
In addition, if the alarm is not used for a long time after installation, the aging of the circuit will cause the alarm to fail
If a dry battery is used for power supply, the battery energy will be exhausted due to long use time, and the power supply for the normal operation of the alarm cannot be supplied, thus causing the alarm to fail
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[0027] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so as to better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, these descriptions will be omitted here.
[0028] figure 1 Shown is a block diagram of a wireless transmission fire alarm system with independent energy supply. The system includes multiple sets of transmitters and a receiver. The transmitter includes a pyroelectric sensor 1, a power conversion module 2, an intelligent microprocessor 3 at the transmitter, and a temperature sensor. 4 and the wireless transmitting module 5; wherein, the electric energy obtained after the pyroelectric sensor 1 is triggered is transmitted to the power conversion module 2, and the power conversion module 2 transmits the electric energy to the subsequent circuit, wh...
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The invention provides an automatic energy supplied wireless transmission pyroelectric sensor and an automatic energy supplied wireless transmission fire alarm system, which aim at the current situation that all the existing fire alarms adopt external power sources or internal batteries to supply power, and develop the automatic energy supplied wireless transmission pyroelectric sensor which is based on a novel thermoelectric material, the electrical signal which is generated when a thermoelectric power generation module is triggered is used as the power supply and the detection signal, and accordingly, the troubles of pre-wiring and frequently battery changing are avoided. The whole fire alarm system does not have the external power supply, a sensor organizes a network by self to realize the remote signal transmission and receiving. An intelligent microprocessor at the receiving end of the fire alarm system finally determines the dangerous position through comprehensively analyzing and processing a plurality of signals, so the real-time monitoring of the multipoint fire is realized. After the automatic energy supplied wireless transmission fire alarm system is adopted, the constraint of the power supply can be eliminated, so a power-free fire alarm function is realized.
Description
technical field [0001] The invention relates to the field of pyroelectric sensor wireless emission fire remote transmission alarm, in particular to a wireless emission pyroelectric sensor with autonomous energy supply and its application in a fire alarm system. Background technique [0002] At present, there are power problems in the field environment, which are not suitable for the application of conventional fire alarm systems. Traditional active sensors have problems such as requiring an external power supply or battery, and short service life. It cannot be used anywhere, so it is not conducive to large-scale networked applications. In addition, if the alarm is not used for a long time after installation, the aging of the circuit will cause the alarm to fail. If a dry battery is used for power supply, there will also be an exhaustion of battery energy due to a long use time, and the power supply for the normal operation of the alarm cannot be supplied, thereby causing th...
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IPC IPC(8): G01J5/12H02N11/00G08B17/06
Inventor 邓元祝薇史永明王瑶叶慧红
Owner HANGZHOU INNOVATION RES INST OF BEIJING UNIV OF AERONAUTICS & ASTRONAUTICS
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