Device for detecting analog signals and method for operating the device
A technology for simulating signals and equipment, applied in signal transmission systems, electrical signal transmission systems, measuring devices, etc., to achieve the effect of saving wires, fast response time and interference factors, and robust noise-signal coupling
Active Publication Date: 2017-11-21
ROBERT BOSCH GMBH
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- Description
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- Application Information
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Problems solved by technology
[0005]
Furthermore, a simple strategy may consist in designing the sensors as passive components, so that the components can each be connected to the control and processing unit by means of a two-wire line
However, passive constructions are associated with high risks with regard to the incidence and radiation of electromagnetic waves, so that the output sound power is generally lower compared to solutions with energy stores and output stages in remote units
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[0040] In the following detailed description, the same or similar components have the same reference signs. based on the following figure 1 The basic principles upon which the invention is based are explained. According to figure 1 In the block diagram shown in , the circuit architecture 100 has a sensor 102 and a control and signal processing unit 101 . The sensor 102 is implemented as a remote sensor, so that the components required for the detection of the surroundings are partially transferred to the control and signal pickup unit 101 . The sensor 102 has a signal pickup unit 104 . Here, according to the figure 1 A variant of the embodiment shown in is provided with a sensor 102 for detecting ultrasound, wherein the signal pick-up unit 104 has a piezoelectric membrane. The reception signal received by the signal pick-up unit 104 is amplified by means of a variable-gain amplifier 105 arranged in the sensor 102 and transmitted via a common transmission line 103 to the c...
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The invention relates to a device (100) for detecting analog signals, in particular for carrying out ambient environment detection, which has: a control and signal analysis processing unit (101) and at least one sensor (102), which has a device for detecting A signal pickup unit (104) that receives a signal and has an amplifier (105) for amplifying said received signal. The sensor (102) is connected with the control and signal analysis and processing unit (101) through one or more transmission lines (103, 106, 107). The amplifier (105) is variable in its gain and the device is designed to transmit the received signal amplified by the amplifier (105) via the same transmission line (103), via the same transmission line The line also simultaneously transmits information for adjusting the gain and / or the feed voltage of the sensor (102). Furthermore, a method for operating the device (100) according to the invention and a movement assistance device having the device according to the invention are provided.
Description
technical field [0001] The invention relates to a device for detecting analog signals, in particular for carrying out ambient detection, said device comprising a control and signal evaluation unit, at least one sensor, said at least one sensor having a signal for detecting a received signal The pick-up unit has an amplifier for amplifying the received signal, wherein the sensor is connected to the control and signal analysis and processing unit through one or more transmission lines. Furthermore, the invention relates to a method for operating the device according to the invention and a movement assistance device having the device according to the invention. Background technique [0002] Today, systems in the ultrasonic range, preferably pulse-measuring systems, are usually used for the acoustic surroundings detection of vehicles. In this case, acoustic pulses of approximately 50 kHz are emitted by the electroacoustic transducer typically every 10 to 300 milliseconds. The ...
Claims
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IPC IPC(8): G08C19/02G08C19/12B60R16/03G01S7/526G01S15/931
CPCG01S7/526G01S15/931G01S2015/937G01S2015/932
Inventor M·卡尔
Owner ROBERT BOSCH GMBH