CN212604489U

CN212604489U - Alarm device for truck oil stealing and collision

Info

Publication number: CN212604489U
Application number: CN202021091181.0U
Authority: CN
Inventors: 张李铭
Original assignee: Sinotruk Jinan Power Co Ltd
Current assignee: Sinotruk Jinan Power Co Ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-02-26
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses an alarm device for truck oil stealing and collision, which comprises a liquid level sensor for monitoring the liquid level of a truck oil tank, and further comprises an MCU, an ADC circuit, a relay, an alarm module and a power module, wherein the output end of the liquid level sensor is connected with the input end of the ADC circuit, the output end of the ADC circuit is connected with the MCU, the control end of the relay is connected with the MCU, and the output passage of the relay is connected with a horn; the power module comprises a first DC-DC circuit and a second DC-DC circuit, wherein the input end of the first DC-DC circuit is connected with the vehicle-mounted storage battery, the output end of the first DC-DC circuit is respectively connected with the input end of the second DC-DC circuit and the input end of the relay, and the output end of the second DC-DC circuit is connected with the MCU. The utility model discloses can let the car owner in time know the vehicle and whether stolen oil in order to retrieve car owner's unnecessary loss of property.

Description

Alarm device for truck oil stealing and collision

Technical Field

The utility model relates to an alarm device that oil and collision were stolen to truck belongs to automobile monitoring technology field.

Background

At present, fuel oil filling of China heavy trucks, particularly long-distance transport vehicles, is common, the capacity of a fuel tank of a truck is large, so that fuel oil theft of the trucks during parking and resting frequently happens, and economic loss is caused.

The principle of the existing oil theft prevention device on the market at present is that an infrared sensor and a vibration sensor are used for sensing the change of the surrounding environment of a vehicle to realize alarming, and the oil theft prevention device has four defects: 1. when people or animals are close to the oil tank, the people or the animals are easy to touch by mistake; 2. the device adopts external secondary installation, the storage battery needs to be independently powered and wired again, and the installation process is complex; 3. when the oil thief cuts off the power supply of the alarm, the device is invalid, and the reliability is not high; 4. the device requires separate alarms and sensors which are expensive to manufacture.

In order to realize the function of automatic alarm when the vehicle steals oil, a technology for sending alarm when the vehicle steals oil and collides needs to be developed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a truck steals alarm device of oil and collision can let the car owner in time know whether the vehicle is stolen oil in order to retrieve car owner's unnecessary loss of property.

The utility model provides a technical scheme that its technical problem adopted is:

the embodiment of the utility model provides a truck steals alarm device of oil and collision, including the level sensor who is used for truck oil tank liquid level monitoring, still include MCU, ADC circuit, relay, alarm module and power module, level sensor's output is connected with the input of ADC circuit, the output of ADC circuit is connected with MCU, the control end of relay is connected with MCU, the output path and the loudspeaker of relay are connected; the power module comprises a first DC-DC circuit and a second DC-DC circuit, wherein the input end of the first DC-DC circuit is connected with the vehicle-mounted storage battery, the output end of the first DC-DC circuit is respectively connected with the input end of the second DC-DC circuit and the input end of the relay, and the output end of the second DC-DC circuit is connected with the MCU.

As a possible implementation manner of this embodiment, the alarm module includes a speaker.

As a possible implementation manner of this embodiment, the first DC-DC circuit is a 24V to 5V circuit, and provides an operating voltage for the second DC-DC circuit and the relay.

As a possible implementation manner of this embodiment, the second DC-DC circuit is a 5V to 3.3V circuit and provides a working voltage for the MCU.

As a possible implementation manner of this embodiment, the alarm device further includes an EEPROM, an indicator light, and a download circuit, which are respectively connected to the MCU.

As a possible implementation manner of this embodiment, the alarm device further includes a serial port supporting UART and SPI protocols, and the serial port is connected to the MCU and used for connecting the remote communication module.

As a possible implementation manner of this embodiment, the MCU, the ADC circuit, the relay, the power module, the EEPROM, the indicator light, the download circuit, and the serial port are integrated on the main control circuit board.

The utility model discloses technical scheme beneficial effect that can have as follows:

the utility model discloses utilize the original level sensor of vehicle, but through detecting the change of level sensor both ends voltage and judge whether take place to steal oil or collision (oil tank liquid level change when the collision), main control circuit board installs and still can report an police when stealing the oil person and cut off the circuit in the driver's cabin inside, the device not only can realize a monitoring function to the vehicle when the car owner has a rest in the car and the vehicle parks in roadside car owner not near the vehicle, let the car owner in time know the vehicle whether steal oil and by the collision in order to retrieve car owner's unnecessary loss of property, and low cost, difficult emergence mistake is touched, the installation is simple, the reliability is high.

Description of the drawings:

FIG. 1 is a schematic diagram of a truck oil theft and collision warning device according to an exemplary embodiment;

fig. 2 is a schematic structural diagram of a main control circuit board according to an embodiment of the present invention;

in fig. 2, a main control circuit board 1, a MCU 2, a liquid level sensor interface 3, an ADC circuit 4, a relay 5, a horn interface 6, a power module 7, a power interface 8, a serial port 9, an EEPROM 10, and a download circuit 11.

Detailed Description

The invention will be further explained with reference to the following embodiments and drawings:

in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention.

As shown in fig. 1, an alarm device for truck oil theft and collision provided by the embodiment of the present invention includes a liquid level sensor for monitoring the liquid level of a truck oil tank, wherein the liquid level sensor adopts a resistance type liquid level sensor; the liquid level sensor comprises a liquid level sensor, a loudspeaker, an ADC circuit, a relay, an alarm module and a power module, wherein the output end of the liquid level sensor is connected with the input end of the ADC circuit; the power module comprises a first DC-DC circuit and a second DC-DC circuit, wherein the input end of the first DC-DC circuit is connected with the vehicle-mounted storage battery, the output end of the first DC-DC circuit is respectively connected with the input end of the second DC-DC circuit and the input end of the relay, and the output end of the second DC-DC circuit is connected with the MCU.

As a possible implementation manner of this embodiment, as shown in fig. 2, the MCU chip 2, the ADC circuit 4, the relay 5, the power module 7, the EEPROM 10, the indicator light, the download circuit 11, and the serial port 9 are integrated on the main control circuit board 1. The liquid level sensor interface 3 connected with the ADC circuit 4 is connected with a liquid level sensor, the horn interface 6 connected with the relay 5 is connected with alarm modules such as a horn, and the power supply interface 8 connected with the power supply module 7 is connected with a vehicle-mounted storage battery.

The whole main control circuit board is arranged below the vehicle police mode switch and is provided with a liquid level sensor interface, a serial port, a horn interface, a power supply interface and an instrument panel interface, and when the main control circuit board is arranged, a corresponding wire harness is found in a wire harness of a cab and is plugged into a corresponding interface.

The device detects the voltage at two ends of the original resistance type liquid level sensor of the vehicle in the interval time period through the MCU chip, and judges whether the voltage changes to trigger the vehicle horn to realize the alarm function. The device solves the problem that the property loss caused by the fact that the vehicle owner can not discover in time when the vehicle owner has a rest in the vehicle and the vehicle is parked near the roadside vehicle owner and the vehicle is stolen with oil or collided. When the vehicle has the function, the loss of the vehicle owner can be timely recovered, the customer satisfaction degree is improved, and the brand value is created. The vehicle is more humanized, and the market competitiveness is improved. The security is maintained, and the method has certain social value.

When the owner of the vehicle needs to rest in the vehicle and get away from the vehicle, the switch of the guard mode, namely the switch on the power interface in fig. 2, is turned on. And at the moment, the wire harness in the liquid level sensor is connected with the MCU. The MCU detects the voltage values at the two ends of the primary liquid level sensor at fixed intervals to judge whether the liquid level changes. When the measured voltage value is different from the voltage value measured in the last time interval, the MCU controls the relay to work and switch on the horn to whistle for warning, and meanwhile, alarm information (including vibration and ringing) can be sent to a vehicle owner through the remote communication module. The alarm function of the vehicle when oil is stolen and the vehicle is collided (the oil level can be changed during collision) is realized through the technical principle.

The device detects voltage signal and accomplishes the alarming function when stealing oil and collision through fixed frequency, and integrated circuit is small and exquisite, and easy installation can install the master control circuit board on the multi-functional switch on the driver's cabin operating panel, and the security is high, and this device still can realize alarming function even when stealing the oil person and cut short the liquid level sensor pencil, has very high reliability.

The foregoing is only a preferred embodiment of the present invention, and those skilled in the art can make several improvements and decorations without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The warning device for oil stealing and collision of the truck comprises a liquid level sensor for monitoring the liquid level of an oil tank of the truck, and is characterized by further comprising an MCU, an ADC circuit, a relay, a warning module and a power module, wherein the output end of the liquid level sensor is connected with the input end of the ADC circuit, the output end of the ADC circuit is connected with the MCU, the control end of the relay is connected with the MCU, and the output passage of the relay is connected with a horn; the power module comprises a first DC-DC circuit and a second DC-DC circuit, wherein the input end of the first DC-DC circuit is connected with the vehicle-mounted storage battery, the output end of the first DC-DC circuit is respectively connected with the input end of the second DC-DC circuit and the input end of the relay, and the output end of the second DC-DC circuit is connected with the MCU.

2. The warning device for oil theft and collision of a truck as claimed in claim 1, wherein said warning module comprises a horn.

3. The warning device for oil theft and collision of a truck as claimed in claim 1, wherein the first DC-DC circuit is a 24V to 5V circuit and provides operating voltage for the second DC-DC circuit and the relay.

4. The warning device for oil theft and collision of a truck as claimed in claim 1, wherein the second DC-DC circuit is a 5V to 3.3V circuit and provides an operating voltage for the MCU.

5. The warning device for oil theft and collision of a truck as claimed in any one of claims 1 to 4, further comprising an EEPROM, an indicator light and a download circuit respectively connected to the MCU.

6. The truck oil theft and collision alarm device as claimed in claim 5, further comprising a serial port supporting UART and SPI protocols, wherein the serial port is connected with MCU for connecting remote communication module.

7. The warning device for oil theft and collision of a truck as claimed in claim 6, wherein the MCU, the ADC circuit, the relay, the power module, the EEPROM, the indicator light, the download circuit and the serial port are integrated on the main control circuit board.