In-car temperature measuring circuit
A technology for in-vehicle temperature and measuring circuits, which is applied in thermometers, measuring devices, measuring heat, etc., can solve the problems of occupant comfort, high cost, and relatively large impact without considering the lighting factor
Active Publication Date: 2017-12-15
WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
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Problems solved by technology
[0002] With the rapid development of the automotive electronics market, improving the comfort of the human body has become the focus of automotive electronics, and the ambient temperature inside the car is undoubtedly an important indicator for comfort considerations. The traditional temperature measurement system is through a suction pipe temperature sensor. Or the suction temperature sensor with its own suction fan collects the temperature inside the car, without considering the impact of light factors on the comfort of the occupants, and the light factors have a greater impact on the temperature inside the car, especially in summer when the light intensity is strong; in addition, the traditional The cost of the temperature measurement system is relatively high, and suction pipes or suction fans are required
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[0023] Such as figure 1 As shown, a temperature measurement circuit in a car includes a first temperature sensor 1 for detecting the temperature in the car, an infrared sensor 2 for detecting the intensity of infrared light in the car, a power supply, an output terminal 3 of the temperature signal in the car, and an infrared signal Output terminal 4, the power supply adopts +5V, the first terminal of the first temperature sensor 1 is connected to the power supply, the second terminal is connected to the temperature signal output terminal 3 in the car, the first terminal of the infrared sensor 2 is connected to the power supply, and the second terminal is connected to the The infrared signal output terminal 4 is connected, the first filter circuit is provided between the second end of the first temperature sensor 1 and the temperature signal output terminal 3 in the car, and the second end of the infrared sensor 2 and the infrared signal output terminal 4 are also provided. The...
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The invention relates to an in-car temperature measuring circuit, and the circuit is characterized in that: the circuit comprises a first temperature sensor for detecting in-car temperature, an infrared sensor for detecting in-car IR intensity, a power supply, an in-car temperature signal output end and an infrared signal output end, the first end of the first temperature sensor is connected with the power supply, the second end is connected with the in-car temperature signal output end, the first end of the infrared sensor is connected with the power supply, the second end is connected with the infrared signal output end, a first filter circuit is arranged between the second end of the first temperature sensor and the in-car temperature signal output end, a second filter circuit is arranged between the second end of the infrared sensor and the infrared signal output end. According to the invention, the measurement for in-car IR is added, so that the temperature measurement is more precise.
Description
technical field [0001] The invention relates to a temperature measuring circuit in a vehicle. Background technique [0002] With the rapid development of the automotive electronics market, improving the comfort of the human body has become the focus of automotive electronics, and the ambient temperature inside the car is undoubtedly an important indicator for comfort considerations. The traditional temperature measurement system is through a suction pipe temperature sensor. Or the suction temperature sensor with its own suction fan collects the temperature inside the car, without considering the impact of light factors on the comfort of the occupants, and the light factors have a greater impact on the temperature inside the car, especially in summer when the light intensity is strong; in addition, the traditional The cost of the temperature measurement system is relatively high, and a suction pipe or a suction fan is required. Contents of the invention [0003] Purpose of...
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IPC IPC(8): G01K13/00G01J5/00
CPCG01J5/00G01K13/00
Inventor 彭时翔林尚栋
Owner WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST