Method and device for detecting and alarming of noxious gas inside automobile

A toxic gas and automobile technology, applied in the field of alarm methods and devices for detecting toxic gases in automobiles, can solve problems such as user troubles, increase costs, and endanger the health of occupants, and achieve the effects of increasing power consumption, increasing costs, and increasing life expectancy

Inactive Publication Date: 2007-09-26
林学春 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned carbon monoxide alarm devices all input the signal collected by the sensor into the alarm circuit, and after the concentration is exceeded, the sound and light alarm is sent out. The engine was turned off due to the situation, resulting in the source of the poisonous gas not being cut off even though there was an alarm sound. At this time, the occupants in the car are usually poisoned, unconscious or comatose, and it is difficult to respond to the alarm sound.
2. The alarm system fails to open the car window, because the air is still not circulating, so the concentration of carbon monoxide in the car is still high, which will continue to endanger the health of the occupants
3. The use time of the sensor is short. Since the sensor needs to

Method used

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  • Method and device for detecting and alarming of noxious gas inside automobile
  • Method and device for detecting and alarming of noxious gas inside automobile

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Embodiment 1

[0036] According to Fig. 1, the present embodiment makes a device for the detection and alarm of toxic gas in automobiles according to the present invention, wherein the delay switch gate circuit 1 is selected as shown in Fig. Time is 10 minutes.

[0037] The carbon monoxide sensor 2 is a sensor of model KGA5de; the output control circuit 4 is a three-way high-level model with a voltage of 5V.

[0038] The power supply 5 is a 12V DC power supply in the car, the LED 11 is a commercially available blue light semiconductor light-emitting diode, and the speaker 12 is a commercially available speaker.

[0039] A delay switch gate circuit 1 is used to detect whether the car is in the idling state, and whether the time in the idling state reaches a predetermined time of 5-30 minutes, and when the predetermined time is reached, a signal to start the detection circuit 3 is sent, and the detection circuit 3 is turned on ; The power supply 5 supplies power to the delay switching gate ci...

Embodiment 2

[0044] The device of embodiment 1 is installed in the automobile, and the device of application embodiment 1 is used to carry out the detection of toxic gas in the car and the method for reporting to the police simultaneously,

[0045] 1. First, when the car engine is running normally, output a high-level signal as the engine normal operation signal 7; when the car is stopped, that is, when the speed is zero, output a high-level signal as the car stop signal 6; the engine is normal The normal operation signal 7 output during operation, and the automobile stop signal 6 output when the automobile stops, they are high-level signals simultaneously;

[0046] 2. Through the delay switch door circuit installed in the car, it is detected whether the car is in the idling state, and the time value of an idling state is preset to be between 10 minutes, that is, a signal is sent to reach the idling time value, when the car Send a signal to open the detection circuit 3 when the idle speed ...

Embodiment 3

[0049] Present embodiment selects the time-delay switching gate circuit 1 shown in Figure 4 for use, and wherein resistance is 30MΩ, and electric capacity is 30 μ F, and then delay time is 15 minutes; Sensor 2 selects commercially available carbon monoxide sensor (model KGA5) for use; Output control circuit 4 It is a three-way low-level model, and the voltage is -5V; the detection circuit 3 is as shown in Figure 3, wherein the carbon monoxide alarm concentration is set to 150ppmm; the power supply 5 is a 12V DC power supply in the car; the LED 11 is a commercially available red light semiconductor light-emitting diode ; Loudspeaker 12 is a commercially available loudspeaker.

[0050] When the car is stopped and the engine is running normally (idling at idle speed) for more than 15 minutes, the delay switch door circuit 1 sends a signal to open the detection circuit 3. At this time, the sensor 2 and the detection circuit 3 start to work. If the carbon monoxide gas concentration ...

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Abstract

The invention relates to an inspecting and alarming device for poisonous gas in automobile, comprising gate circuit of delay switch for inspecting if the time when automobile is in idle speed and motion state achieves the setting value. When the time achieves the setting value the signal is emitted and the inspecting circuit is opened. CO sensor is set in the inspecting circuit to collect the concentration signal of CO and transform the signal into voltage signal, which is amplified subsequently. When amplified voltage signal achieves the setting value alarm is started while three signals are outputted. One signal output is used to control car window to open; another signal output is used to control engine to close and the residual signal output is used to open anti-theft alarming device. By adopting the method of opening inspection circuit automatically, the device prolong the using time of sensor greatly while the problem that in the original technology only alarm can be started and the source of poisonous gas can not be cut is conquered. The safety is increased. It is provided with simple structure, strong practicability. It is widely applied in various automobiles.

Description

technical field [0001] The invention relates to a toxic gas alarm device, in particular to an alarm method and device for detecting toxic gas in an automobile. Background technique [0002] In recent years, reports on TV, newspapers, and the Internet have been common about poisoning or even death caused by prolonged use of the air conditioner in closed carriages due to sleep or other reasons. The incidents mostly occur in summer and winter, and the main causes are car owners or passengers. When the air conditioner is turned on in the car (for heating or cooling) to rest, the resulting carbon monoxide cannot be discharged in the small and relatively sealed space of the car, thus causing carbon monoxide poisoning, which usually leads to death because the poisoned person will lose consciousness . A large number of fatal accidents caused by carbon monoxide poisoning in vehicles take place in our country every year. [0003] According to tests, when the car is running normally,...

Claims

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Application Information

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IPC IPC(8): B60K28/10
Inventor 林学春宋平
Owner 林学春
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