A Fast Processing Frequency Transformation Recognition System
A frequency conversion and recognition system technology, applied in the electronic field, can solve the problems of slow recognition speed and achieve the effects of improving efficiency, low input noise and high precision
Inactive Publication Date: 2017-02-01
四川驿停车智慧科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the defect of slow identification speed of the identification system adopted in the current ETC, and provide a frequency conversion identification system with fast processing
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[0021] like figure 1 As shown, the fast-processing frequency conversion identification system of the present invention mainly includes a signal acquisition circuit 1, a frequency conversion circuit 2 connected with the signal acquisition circuit 1, a linear amplification circuit 4 connected with the frequency conversion circuit 2, and a linear amplification circuit 4. The signal identification circuit 5 connected with the circuit 4, the constant current source circuit 6 connected with the signal identification circuit 5, the terminal transmission circuit 7 connected with the constant current source circuit 6, and the signal acquisition circuit 1 and the frequency conversion circuit 2 at the same time And the fast processing circuit 3 connected with the linear amplifier circuit 4.
[0022] Wherein, fast processing circuit 3 is the key point of the present invention, and it is by processing chip U, and N pole is connected with the IN1 pin of processing chip U, the diode D4 that ...
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The invention discloses a frequency conversion identification system with a rapid processing function. The frequency conversion identification system mainly comprises a signal acquisition circuit (1), a frequency conversion circuit (2) connected with the signal acquisition circuit (1), a linear amplification circuit (4) connected with the frequency conversion circuit (2), a signal identification circuit (5) connected with the linear amplification circuit (4), a constant current source circuit (6) connected with the signal identification circuit (5) and a tail end transmission circuit (7) connected with the constant current source circuit (6). The frequency conversion identification system is characterized by further comprising a rapid processing circuit (3) connected with the signal acquisition circuit (1), the frequency conversion circuit (2) and the linear amplification circuit (4) at the same time, wherein the rapid processing circuit (3) is formed by a processing chip U, a diode D4 and the like, the pole N of the diode D4 is connected with the IN1 pin of the processing chip U, and the pole P of the diode D4 is connected with the IN2 pin of the processing chip U. The frequency conversion identification system is provided with the rapid processing circuit (3), so the identification speed of the identification system can be greatly increased, identification accuracy can also be guaranteed, the speed at which a vehicle passes through an ETC system is higher, and the efficiency of the ETC system is improved.
Description
technical field [0001] The invention relates to the field of electronics, in particular to a fast-processing frequency conversion recognition system. Background technique [0002] At present, road and bridge tolls in our country are mainly cash transactions, and there are many shortcomings: such as low vehicle traffic rate, high probability of error, and extremely inconvenient management. In terms of financial management, there will be many irreparable loopholes, which will lead to the loss of charging funds; in terms of vehicle traffic management, due to the lack of necessary preventive measures, the number of vehicles punching cards has increased significantly. The ETC system adopts a series of advanced equipment technologies, such as TV monitoring system, roadblock control system, computer accounting management system, etc., to maximize the vehicle traffic rate, and overcomes various problems of manual charging due to the use of computer management accounts , to give ful...
Claims
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IPC IPC(8): G07B15/06
CPCG07B15/063
Inventor 严皓
Owner 四川驿停车智慧科技有限公司