Bridge acceleration signal conditioner
A signal conditioner and signal conditioning circuit technology, applied in sequence/logic controller program control, electrical program control, etc., can solve problems such as wiring difficulties, increase labor and power line costs, complex cable management, etc. Real-time performance, simplified management, and cost reduction
Inactive Publication Date: 2012-10-24
CCCC HIGHWAY CONSULTANTS
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Problems solved by technology
Although this method can achieve quite high precision, it requires more additional lines to undertake pulse transmission, which makes wiring more difficult, especially in special environments, such as super-large bridges
[0004] The traditional method of power supply is to lay separate cables, which complicates cable management during installation and any future network changes, and increases the cost of manpower and power cords
Method used
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0028] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of the bridge acceleration signal conditioner provided by the present invention. The bridge acceleration signal conditioner includes MCU circuit 1, PoE power supply circuit 2, watchdog circuit 3, RS232 / 485 communication circuit 4, Ethernet communication circuit 5, "one-line bus" interface circuit 6, real-time clock circuit 7, data storage Circuit 8, 4-channel A / D conversion circuit 9, signal conditioning circuit 10, excitation signal generation circuit 11, sensor interface circuit 12, IEEE1588 synchronization circuit 13 and PGA circuit 14.
[0029] Among them, MCU circuit 1 is respectively connected to PoE power supply circuit 2, watchdog ci...
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The invention discloses a bridge acceleration signal conditioner which is characterized by comprising an MCU (microprogrammed control unit) circuit, an IEEE (institute of electrical and electronic engineers) 1588 synchronous circuit, a PoE (power over Ethernet) power supply circuit, a watchdog circuit, an RS232 / 485 communication circuit, an Ethernet communication circuit, a 'one-wire bus' interface circuit, an RTC (real time clock) circuit, a data memory circuit, a four-channel A / D (analog / digital) conversion circuit, a signal conditioning circuit, a PGA (programmable gain amplifier) circuit, an excitation signal generating circuit and a sensor interface circuit. The bridge acceleration signal conditioner has the advantages that a dynamic range of the signal conditioner is enlarged, synchronization accuracy among conditioners is improved, cable management is simplified, and labor cost and cost of power cords are lowered.
Description
technical field [0001] The invention relates to the technical field of signal synchronous acquisition, in particular to a bridge acceleration signal conditioner with functions such as supporting IEEE1588 protocol synchronous sampling, PoE power supply over Ethernet, network transmission, external control, etc. collection. Background technique [0002] In the collection of bridge structure dynamic vibration data, the traditional method is to use manual data measurement, recording and processing. Due to the slow measurement speed and long time-consuming of the manual monitoring method, it is difficult to realize the simultaneous monitoring of multiple points, and the consistency of the working status of each measuring point cannot be guaranteed. For example, the state of the data measured at 8:00 and 10:00 is inconsistent due to the influence of temperature. In addition, the location of the measurement points is different. It is difficult to eliminate the influence of tempera...
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Inventor 裴岷山冯良平李娜刘芳亮刘志强谢浩周兵殷鹏雷
Owner CCCC HIGHWAY CONSULTANTS