阅读说明：本技术 一种组合式燃气仪表及其控制方法 (Combined gas meter and control method thereof ) 是由 李诗华 任海军 徐荣华 王文军 于 2019-09-03 设计创作，主要内容包括：本发明涉及燃气仪表技术领域,且公开了一种组合式燃气仪表及其控制方法。包括整车控制器,所述整车控制器的输出端与电源管理控制模块的输入端电连接,所述电源管理控制模块的输出端分别与液晶显示模块、IO数字量采集模块、仪表控制器、气体传感器、燃气泄漏传感器、故障诊断及处理模块的输入端电连接,所述燃气泄漏传感器的输出端与燃气漏气检测模块的输入端电连接。该发明通过设置燃气漏气检测模块、报警模块和液晶显示模块,能够使组合式燃气仪表具备燃气漏气提醒的功能,增强车用燃气的安全,进行实时监控并在发生泄漏时进行报警,以提醒驾驶员进行泄漏点排查,达到安全用气的作用,提升驾驶员驾车时的安全性。(The invention relates to the technical field of gas meters and discloses a combined gas meter and a control method thereof. The gas leakage monitoring system comprises a vehicle control unit, wherein the output end of the vehicle control unit is electrically connected with the input end of a power management control module, the output end of the power management control module is electrically connected with the input ends of a liquid crystal display module, an IO digital quantity acquisition module, an instrument controller, a gas sensor, a gas leakage sensor and a fault diagnosis and processing module respectively, and the output end of the gas leakage sensor is electrically connected with the input end of a gas leakage detection module. By arranging the gas leakage detection module, the alarm module and the liquid crystal display module, the combined gas instrument has a gas leakage reminding function, the safety of vehicle gas is enhanced, real-time monitoring is carried out, and an alarm is given when leakage occurs, so that a driver is reminded to check leakage points, the effect of safe gas utilization is achieved, and the safety of the driver during driving is improved.)

1. the utility model provides a modular gas instrument, includes vehicle control unit (1), its characterized in that: the output end of the vehicle control unit (1) is electrically connected with the input end of a power management control module (2), the output end of the power management control module (2) is electrically connected with the input ends of a liquid crystal display module (3), an IO digital quantity acquisition module (4), an instrument controller (5), a gas sensor (6), a gas leakage sensor (7) and a fault diagnosis and processing module (8) respectively, the output end of the gas leakage sensor (7) is electrically connected with the input end of a gas leakage detection module (9), the output end of the gas leakage detection module (9) is electrically connected with the input ends of an alarm module (10) and the fault diagnosis and processing module (8) respectively, the output end of the fault diagnosis and processing module (8) is electrically connected with the input end of a gas leakage protection module (11), the output end of the alarm module (10) is electrically connected with the input end of a buzzer (12), the output end of the gas leakage protection module (11) is electrically connected with the input ends of the gas storage cylinder electromagnetic valve (13) and the protection gas storage cylinder electromagnetic valve (14) respectively.

2. The combined gas meter and the control method thereof according to claim 1, wherein: the IO digital quantity acquisition module (4), the gas leakage sensor (7), the gas leakage detection module (9) and the fault diagnosis and processing module (8) are respectively in two-way connection with the instrument controller (5).

3. The combined gas meter and the control method thereof according to claim 1, wherein: the output end of the buzzer (12) is electrically connected with the input end of the liquid crystal display module (3).

4. a control method of a combined gas meter is characterized in that: the method comprises the following steps:

S1: firstly, a vehicle control unit (1) is started, a power management control module (2) works, and power is transmitted to a liquid crystal display module (3), an IO digital quantity acquisition module (4), an instrument controller (5), a gas sensor (6), a gas leakage sensor (7) and a fault diagnosis and processing module (8), so that normal work among the modules is ensured;

S2: when the gas sensor (6) is electrified to work, the working state of gas is collected, the residual gas quantity signal is monitored, the IO digital quantity collection module (4) collects the states of input and output switching values, and the residual gas quantity is displayed in a digital form through the liquid crystal display module (3);

S3: the gas leakage detection module (9) transmits the gas leakage signal to the alarm module (10) and the fault diagnosis and processing module (8);

S4: after the alarm module receives the gas leakage signal, a buzzer is started to alarm, and the buzzer displays the alarm signal through the liquid crystal display module (3);

S5: the fault diagnosis and processing module (8) transmits the received gas leakage signal to the gas leakage protection module (11), and the gas leakage protection module (11) performs protection work;

S6: the gas leakage protection module (11) controls the gas storage cylinder electromagnetic valve (13) to be closed, the gas supply is cut off, and the protective gas storage cylinder electromagnetic valve (14) is opened to release protective gas.

Technical Field

The invention relates to the technical field of gas meters, in particular to a combined gas meter and a control method thereof.

Background

the combined gas meter is used for displaying the information of residual gas quantity, fuel state, gas fault and the like of gas and is a detection meter for natural gas in use. The combined gas meter for vehicle is an important meter for detecting gas automobile.

the existing combined gas instrument for the automobile mostly does not have the function of gas leakage reminding, cannot alarm and remind leakage of gas in time, cannot protect the leaked gas, and is poor in safety.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a combined gas meter and a control method thereof, and solves the problems that most of the existing combined gas meters for automobiles do not have the function of gas leakage reminding, can not alarm and remind the leakage of gas in time, can not protect the leaked gas and has poor safety.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a combined gas meter comprises a vehicle control unit, wherein the output end of the vehicle control unit is electrically connected with the input end of a power management control module, the output end of the power management control module is respectively and electrically connected with the input ends of the liquid crystal display module, the IO digital quantity acquisition module, the instrument controller, the gas sensor, the gas leakage sensor and the fault diagnosis and processing module, the output end of the gas leakage sensor is electrically connected with the input end of the gas leakage detection module, the output end of the gas leakage detection module is respectively and electrically connected with the input ends of the alarm module and the fault diagnosis and processing module, the output end of the fault diagnosis and processing module is electrically connected with the input end of the gas leakage protection module, the output end of the alarm module is electrically connected with the input end of the buzzer, and the output end of the gas leakage protection module is electrically connected with the input ends of the gas storage cylinder electromagnetic valve and the protection gas storage cylinder electromagnetic valve respectively.

Preferably, the power management control module, the IO digital quantity acquisition module, the gas leakage sensor, the gas leakage detection module and the fault diagnosis and processing module are respectively connected with the instrument controller in a bidirectional mode.

Preferably, the output end of the buzzer is electrically connected with the input end of the liquid crystal display module.

a control method of a combined gas meter comprises the following steps:

S1: the method comprises the steps of firstly starting the vehicle control unit, enabling the power management control module to work, and transmitting power to the liquid crystal display module, the IO digital quantity acquisition module, the instrument controller, the gas sensor, the gas leakage sensor and the fault diagnosis and processing module to ensure normal work among the modules.

S2: when the gas sensor is electrified to work, the working state of gas is collected, the residual gas quantity signal is monitored, the IO digital quantity collection module collects the state of input and output switching values, and the residual gas quantity is displayed in a digital form through the liquid crystal display module.

S3: the gas leakage detection module transmits the gas leakage signal to the alarm module and the fault diagnosis and processing module.

S4: after the alarm module receives the gas leakage signal, the buzzer is started to give an alarm, and the buzzer displays the alarm signal through the liquid crystal display module.

S5: and the fault diagnosis and processing module transmits the received gas leakage signal to the gas leakage protection module, and the gas leakage protection module performs protection work.

S6: the gas leakage protection module controls the electromagnetic valve of the gas storage cylinder to be closed, cuts off gas supply, opens the electromagnetic valve of the protective gas storage cylinder and releases protective gas.

(III) advantageous effects

The invention provides a combined gas meter and a control method thereof, which have the following beneficial effects:

(1) According to the invention, by arranging the gas leakage detection module, the alarm module and the liquid crystal display module, the combined gas instrument can have a gas leakage reminding function, the safety of vehicle gas is enhanced, real-time monitoring is carried out, and an alarm is given when leakage occurs, so that a driver is reminded to investigate leakage points, the effect of safe gas utilization is achieved, the safety of the driver during driving is improved, and the problems that the conventional combined gas instrument for the vehicle does not have the gas leakage reminding function, the gas leakage cannot be reminded in time by alarming, the leaked gas cannot be protected and the safety is poor are solved.

(2) The gas leakage protection module, the gas storage cylinder electromagnetic valve and the protective gas storage cylinder electromagnetic valve are arranged, so that the safety coefficient of the vehicle gas in use can be effectively enhanced, the gas storage cylinder electromagnetic valve and the protective gas storage cylinder electromagnetic valve are utilized to timely close and open the gas storage cylinder and the protective gas storage cylinder respectively, and the leaked gas is protected by releasing the protective gas, so that the condition that the gas is exposed to naked fire and burns is avoided.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention.

In the figure: the system comprises a vehicle control unit 1, a power management control module 2, a liquid crystal display module 3, a 4IO digital quantity acquisition module, an instrument controller 5, a gas sensor 6, a gas leakage sensor 7, a fault diagnosis and processing module 8, a gas leakage detection module 9, an alarm module 10, a gas leakage protection module 11, a buzzer 12, a gas storage cylinder electromagnetic valve 13 and a gas storage cylinder electromagnetic valve 14.

Detailed Description

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the present invention provides a technical solution: a combined gas meter comprises a vehicle control unit, wherein the output end of the vehicle control unit is electrically connected with the input end of a power management control module, the output end of the power management control module is respectively connected with a liquid crystal display module, an IO digital quantity acquisition module and a meter controller, the gas sensor, the gas leakage sensor, the input electricity of failure diagnosis and processing module, the output of gas leakage sensor is connected with the input electricity of gas leakage detection module, the output of gas leakage detection module is connected with alarm module and failure diagnosis and processing module's input electricity respectively, failure diagnosis and processing module's output is connected with the input electricity of gas leakage protection module, alarm module's output is connected with the input electricity of bee calling organ, the output of gas leakage protection module is connected with the input electricity of gas bomb solenoid valve and protection gas bomb solenoid valve respectively.

Specifically, IO digital value collection module, gas leak sensor, gas leakage detection module and failure diagnosis and processing module respectively with instrument controller bidirectional connection, are favorable to the two-way transmission of signal, the condition that the driver of being convenient for more knows the gas and reveals.

Specifically, the output end of the buzzer is electrically connected with the input end of the liquid crystal display module, so that visual observation and gas leakage of a driver are facilitated.

A control method of a combined gas meter comprises the following steps:

S1: the method comprises the steps of firstly starting the vehicle control unit, enabling the power management control module to work, and transmitting power to the liquid crystal display module, the IO digital quantity acquisition module, the instrument controller, the gas sensor, the gas leakage sensor and the fault diagnosis and processing module to ensure normal work among the modules.

s2: when the gas sensor is electrified to work, the working state of gas is collected, the residual gas quantity signal is monitored, the IO digital quantity collection module collects the state of input and output switching values, and the residual gas quantity is displayed in a digital form through the liquid crystal display module.

S3: the gas leakage detection module transmits the gas leakage signal to the alarm module and the fault diagnosis and processing module.

S4: after the alarm module receives the gas leakage signal, the buzzer is started to give an alarm, and the buzzer displays the alarm signal through the liquid crystal display module.

S5: and the fault diagnosis and processing module transmits the received gas leakage signal to the gas leakage protection module, and the gas leakage protection module performs protection work.

S6: the gas leakage protection module controls the electromagnetic valve of the gas storage cylinder to be closed, cuts off gas supply, opens the electromagnetic valve of the protective gas storage cylinder and releases protective gas.

When in use, the vehicle control unit is started firstly, the power management control module is enabled to work, and the liquid crystal display module, the IO digital quantity acquisition module, the instrument controller, the gas sensor, the gas leakage sensor and the fault diagnosis and processing module are supplied with power to ensure the normal work among the modules, when the gas sensor is electrified to work, the working state of the gas is acquired, the residual gas quantity signal is monitored, the IO digital quantity acquisition module acquires the state of input and output switching quantity, the residual gas quantity is displayed in a digital form through the liquid crystal display module, the gas leakage sensor monitors whether the gas is in a leakage state in real time, the gas leakage sensor acquires the gas leakage signal, the gas leakage detection module transmits the gas leakage signal to the alarm module and the fault diagnosis and processing module, and after the alarm module receives the gas leakage signal, start bee calling organ and report to the police, bee calling organ shows alarm signal through liquid crystal display module simultaneously, and fault diagnosis and processing module will receive the gas and reveal signal transmission to gas leakage protection module, carry out protection work by gas leakage protection module, and gas leakage protection module control gas bomb solenoid valve is closed, cuts off the gas supply to open protection gas bomb solenoid valve, release the protective gas.

In conclusion, the combined gas meter has the function of gas leakage reminding by arranging the gas leakage detection module, the alarm module and the liquid crystal display module, the safety of the vehicle gas is enhanced, real-time monitoring is carried out, alarm is carried out when leakage occurs, a driver is reminded to investigate leakage points, the effect of safe gas utilization is achieved, the safety of the driver during driving is improved, the safety factor of the vehicle gas during use can be effectively enhanced by arranging the gas leakage protection module, the gas storage bottle electromagnetic valve and the protective gas storage bottle electromagnetic valve are respectively closed and opened in time, the leaked gas is protected by releasing the protective gas, the condition that the gas is exposed to fire and burns is avoided, and the problem that the existing combined gas meter for the vehicle does not have the function of gas leakage reminding is solved, not only can not report to the police and remind the revealing of gas in time, can not protect the gas that has revealed yet, the relatively poor problem of security.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.