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CN115931385B - Mobile fire truck hydraulic performance detection system and method - Google Patents

Mobile fire truck hydraulic performance detection system and method

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Publication number
CN115931385B
CN115931385B CN202211530337.4A CN202211530337A CN115931385B CN 115931385 B CN115931385 B CN 115931385B CN 202211530337 A CN202211530337 A CN 202211530337A CN 115931385 B CN115931385 B CN 115931385B
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acquisition module
fire truck
data
mobile
pressure
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CN115931385A (en
Inventor
盛涛
马玉琴
李峰
蒋应喜
张振华
王继堂
吴军
刘荣
张宝峰
薛剑桥
李昕
李志宇
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XI'AN AEROSPACE PUMPS CO Ltd
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XI'AN AEROSPACE PUMPS CO Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

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Abstract

The invention provides a hydraulic performance detection system and method of a mobile fire engine, wherein the mobile fire engine comprises a mobile machine cabinet, the mobile machine cabinet comprises a 485 signal acquisition module, an industrial personal computer, a telescopic pressure measuring hose, at least one pressure meter and an alarm lamp, the 485 signal acquisition module comprises a measurement sensor and a mobile data processing terminal, the industrial personal computer comprises a fault diagnosis terminal and a touch display screen, the measurement sensor converts acquired data into 485 protocol signals and transmits the 485 protocol signals to the mobile data processing terminal, the mobile data processing terminal records and analyzes the 485 protocol signals according to set requirements and transmits the results to the fault diagnosis terminal, the fault diagnosis terminal forms a data list by using time data and temperature data, the data is processed by using a least square method, a linear equation is displayed on the touch display screen, and the alarm lamp is used for detecting whether the results meet set standards.

Description

Hydraulic performance detection system and method for mobile fire truck
Technical Field
The invention relates to a fire truck hydraulic performance and temperature rise detection system and method.
Background
The hydraulic performance detection of the fire engine is an important item for detecting the fire engine vehicle, and has important significance for guaranteeing the fire extinguishing efficiency of the fire engine.
The traditional fire truck hydraulic performance detection work mainly comprises the on-site sampling of a detection station and manual laboratory analysis. Although the analysis means is complete in the laboratory, the laboratory detection has the defects of large instrument and equipment place requirement, large sampling error, scattered monitoring data, incapability of timely pre-judging the vehicle condition and the like, and is difficult to meet the higher requirements of the existing manufacturers and fire departments on the fire truck detection.
At present, a plurality of fire truck hydraulic performance detection experiment tables are also established successively in various places in China according to detection management requirements, but the fire truck hydraulic performance detection experiment tables are only focused on fire truck hydraulic performance detection, facilities and places are too large in configuration, the input cost is too high, and real-time detection of the running state of a vehicle, particularly the temperature rise of an engine system, is not realized.
Disclosure of Invention
The invention aims to provide a system and a method for detecting the hydraulic performance of a mobile fire truck, aiming at the technical problems that the prior art has large site requirements, large sampling errors, scattered monitoring data, incapability of timely predicting the condition of the vehicle and incapability of detecting the running state of the vehicle, particularly the temperature rise of an engine system in real time.
The technical scheme of the invention is as follows:
The hydraulic performance detection system of the mobile fire truck comprises a mobile cabinet and is characterized in that the mobile cabinet comprises a 485 signal acquisition module, an industrial personal computer, a telescopic pressure measuring hose, at least one pressure gauge and an alarm lamp;
The 485 signal acquisition module comprises a measuring sensor and a mobile data processing terminal;
the industrial personal computer comprises a fault diagnosis terminal and a touch display screen;
the measuring sensor comprises a flow acquisition module, a pressure acquisition module, a temperature acquisition module and a vehicle information acquisition module;
the measurement sensor converts the acquired data into 485 protocol signals and transmits the 485 protocol signals to the mobile data processing terminal;
The mobile data processing terminal records and analyzes 485 protocol signals according to set requirements and transmits the results to the fault diagnosis terminal;
The fault diagnosis terminal forms a data list from time data and temperature data in 485 protocol signals, processes the data by adopting a least square method, analyzes the data by a statistical analysis program to obtain a linear equation, and displays a detection result on a touch display screen;
The alarm lamp is used for displaying whether the detection result accords with a set standard;
the pressure acquisition module comprises a telescopic pressure measuring hose and a pressure gauge.
Further, the flow acquisition module is arranged on the outlet pipe of the fire truck water pump and is used for acquiring the water pump flow of the fire truck; the telescopic pressure measuring hoses in the pressure collecting module are arranged at the positions of pressure measuring points at the inlet and the outlet of the fire truck water pump and are used for collecting inlet pressure and outlet pressure of the fire truck water pump, the temperature collecting module is arranged on the fire truck transfer case shell and the gear box shell and is used for collecting temperature rise states of the fire truck transfer case and the gear box at different positions, the rotating speed collecting module is arranged on the fire truck universal joint coupling and is used for collecting output rotating speed of the fire truck, and the vehicle information collecting module is arranged on the fire truck ECU interface and is used for collecting engine parameters of the fire truck.
The vehicle information acquisition system comprises a flow acquisition module, a pressure acquisition module, a temperature acquisition module, a speed acquisition module, a vehicle information acquisition module and a vehicle information acquisition module, wherein the flow acquisition module is an ultrasonic sensor, the pressure acquisition module comprises an outlet pressure sensor and an inlet pressure sensor, the temperature acquisition module comprises a gear box temperature sensor and a transfer case temperature sensor, the speed acquisition module is a photoelectric speed sensor, and the vehicle information acquisition module is a CAN bus communication module.
Further, 4 movable wheels are installed at the bottom of the movable cabinet.
Meanwhile, the invention also provides a detection method of the mobile fire truck hydraulic performance detection system, which comprises the following steps:
1) Data acquisition
Connecting a 485 signal acquisition module interface on the mobile cabinet with a fire truck to be detected; the system comprises a flow acquisition module, a temperature acquisition module interface, a rotation speed acquisition module interface, a fire engine universal joint coupling, a vehicle information acquisition module interface and a fire engine ECU interface, wherein the flow acquisition module is arranged at an outlet pipe of a fire engine water pump;
connecting a water source to the test pool, starting a fire engine, and enabling a fire pump to work at the maximum lift;
the system comprises a flow acquisition module, a pressure acquisition module, a temperature acquisition module, a vehicle information acquisition module, a rotation speed acquisition module, a speed control module and a control module, wherein the flow acquisition module acquires the flow of a water pump of the fire engine;
2) Data processing
The mobile data processing terminal records and analyzes the 485 protocol signals according to set requirements and transmits the results to a fault diagnosis terminal of the industrial personal computer;
3) Data display and diagnosis
The water pump pressure data of the fire truck are displayed on a pressure gauge;
The flow data, the fire truck output rotating speed and the engine parameters are displayed on the touch display screen;
The fault diagnosis terminal forms a data list from time data and temperature data in 485 protocol signals, processes the data by adopting a least square method, performs quadratic equation curve fitting based on discrete data points, generates an N-time curve equation of temperature rise, calculates the temperature of a future period according to the N-time curve equation, and displays the prediction result on a touch display screen;
4) Alarm device
And when the calculation result indicates that the temperature exceeds the set value in the future period, the alarm lamp gives a lamplight alarm.
The invention has the beneficial effects that:
1. the invention combines sensing principles such as ultrasonic method, piezoelectric effect method, optical method and digital communication mode, and the like, comprehensively utilizes technologies such as automatic measurement, automatic control, digital communication and the like, and can rapidly and accurately obtain the hydraulic performance monitoring data of the fire truck so as to determine the hydraulic performance condition and the engine temperature rise trend of the fire truck.
2. The movable fire truck hydraulic performance detection system provided by the invention can reduce the operation cost of fire truck hydraulic performance detection, provides a feasible, convenient and quick performance detection mode with high degree of automation, and a fault safety early warning and emergency technology, and has important significance for improving the intelligent level of fire truck hydraulic performance detection.
3. Because the temperature rise of the engine is slower, the invention only collects the temperature rise data of the engine in the working period just started, and predicts the temperature rise data of the future period according to the prediction curve, thereby saving the detection cost and the detection time.
4. The invention can use the matched movable test water tank, and forms a circulating waterway with the fire pump through the pipeline, thereby saving water resources and being convenient for movable detection at any time and any place.
Drawings
FIG. 1 is a schematic diagram of a mobile cabinet in a hydraulic performance detection system of a mobile fire truck according to the present invention;
FIG. 2 is a schematic diagram of the connection relationship between the hydraulic performance detection system of the mobile fire truck and the fire truck.
The specific reference signs are as follows:
1-mobile cabinet, 2-industrial personal computer, 3-pressure gauge, 4-telescopic pressure measuring hose, 5-485 signal acquisition module, 6-alarm lamp, 7-fire engine, 8-engine, 9-universal joint coupling, 10-transfer case, 11-fire pump, 12-CAN bus communication module, 13-transfer case temperature sensor, 14-photoelectric rotation speed sensor, 15-gear case temperature sensor, 16-outlet pressure sensor, 17-inlet pressure sensor, 18-ultrasonic sensor, 19-test pool and 20-water pipe.
Detailed Description
As shown in fig. 1, the hydraulic performance detection system of the mobile fire truck comprises a mobile cabinet 1, wherein the mobile cabinet 1 comprises an industrial personal computer 2, a 485 signal acquisition module 5 and an alarm lamp 6. The bottom of the mobile cabinet 1 is provided with 4 mobile wheels.
The industrial personal computer 2 includes a fault diagnosis terminal and a touch display screen.
485 Signal acquisition module 5 includes measuring sensor and mobile data processing terminal. The measuring sensor comprises a flow acquisition module, a pressure acquisition module, a temperature acquisition module and a vehicle information acquisition module. The measurement sensor converts the acquired data into 485 protocol signals and transmits the 485 protocol signals to the mobile data processing terminal. The mobile data processing terminal records and analyzes 485 protocol signals according to set requirements, and transmits the result to the fault diagnosis terminal. The pressure acquisition module comprises a telescopic pressure measuring hose 4 and at least one pressure gauge 3.
The fault diagnosis terminal forms a data list from time data and temperature data in 485 protocol signals, processes the data by adopting a least square method, analyzes the data by a statistical analysis program to obtain a linear equation, and displays a detection result on a touch display screen.
The alarm lamp 6 is used for displaying whether the detection result meets the set standard.
The method for predicting the hydraulic performance and the temperature rise of the fire truck by the mobile fire truck hydraulic performance detection system comprises the following steps:
1) Data acquisition
The method comprises the steps of connecting a 485 signal acquisition module 5 interface on a mobile cabinet 1 with a fire truck 7 to be detected, wherein a flow acquisition module is arranged at an outlet of a fire pump 11, a telescopic pressure measuring hose 4 in the pressure acquisition module is connected with pressure measuring points of an inlet and an outlet of the fire pump 11, a temperature acquisition module interface is respectively connected with a fire truck transfer case 10 shell position and a gearbox shell position, a rotating speed acquisition module is arranged at a fire truck universal joint coupling 9 position, and a vehicle information acquisition module interface is connected with a fire truck ECU.
In the test pool 19 filled with water, the inlet and outlet of the fire pump are connected with the test pool through water pipes to form water circulation, and then the engine 8 of the fire engine is started, and the fire pump 11 is started to work at the maximum lift.
Next, the flow collection module collects the flow of the fire truck water pump, the pressure collection module collects the water pump pressure of the fire truck 7, the temperature collection module collects the temperature information of the different positions of the fire truck transfer case 10 and the gear box, the vehicle information collection module collects the engine 8 parameters of the fire truck, and the rotation speed collection module collects the rotation speed of the universal joint coupling of the fire truck 7.
2) Data processing
Except that the pressure data of the fire engine water pump is directly sent to the pressure gauge 3, the data collected by other modules are respectively converted into 485 protocol signals and are transmitted to the mobile data processing terminal, and the mobile data processing terminal records and analyzes the 485 protocol signals according to the detection requirement and transmits the result to the fault diagnosis terminal of the industrial personal computer 2.
3) Data display and diagnosis
The fire engine water pump pressure data is displayed on the pressure gauge 3. The flow data, the fire engine output rotation speed and the engine 8 parameters are displayed on the touch display screen. The fault diagnosis terminal forms a data list from time data and temperature data in 485 protocol signals, processes the data by adopting a least square method, performs quadratic equation curve fitting based on discrete data points, generates an N-time curve equation of temperature rise, calculates the temperature of a future period according to the N-time curve equation, and displays a temperature prediction result on a touch display screen.
4) Alarm device
When the calculation result indicates that the temperature will exceed the set value in the future period, the alarm lamp 6 will give a light alarm.

Claims (7)

1.移动式消防车水力性能检测系统，包括一个移动机柜(1)，其特征在于：所述移动机柜(1)包括485信号采集模块(5)、工控机(2)和报警灯(6)；1. A mobile fire truck hydraulic performance detection system, comprising a mobile cabinet (1), characterized in that the mobile cabinet (1) comprises a 485 signal acquisition module (5), an industrial computer (2) and an alarm light (6); 所述485信号采集模块(5)包括测量传感器和移动数据处理终端；The 485 signal acquisition module (5) includes a measurement sensor and a mobile data processing terminal; 所述工控机(2)包括故障诊断终端和触摸显示屏；The industrial computer (2) includes a fault diagnosis terminal and a touch display screen; 所述测量传感器包括流量采集模块、压力采集模块、温度采集模块、车辆信息采集模块以及转速采集模块；The measuring sensor includes a flow acquisition module, a pressure acquisition module, a temperature acquisition module, a vehicle information acquisition module and a speed acquisition module; 所述测量传感器将所采集的数据转换为485协议信号传送到移动数据处理终端；The measurement sensor converts the collected data into 485 protocol signals and transmits them to the mobile data processing terminal; 所述移动数据处理终端，根据设定要求对485协议信号进行记录和分析，并将结果传送到故障诊断终端；The mobile data processing terminal records and analyzes the 485 protocol signal according to the set requirements and transmits the result to the fault diagnosis terminal; 所述故障诊断终端将485协议信号中的时间数据和温度数据形成数据列表，并采用最小二乘法对该数据进行处理，基于离散数据点进行二次方程曲线拟合，并生成温升的N次曲线方程式，根据N次曲线方程式计算未来时段的温度，并在触摸显示屏上显示该温度预测结果；The fault diagnosis terminal forms a data list with the time data and temperature data in the 485 protocol signal, processes the data using the least squares method, performs quadratic equation curve fitting based on discrete data points, and generates an Nth-order curve equation for temperature rise. The temperature in the future period is calculated based on the Nth-order curve equation, and the temperature prediction result is displayed on the touch screen; 所述报警灯(6)用于显示检测结果是否符合设定标准；The alarm light (6) is used to indicate whether the test result meets the set standard; 所述压力采集模块包括伸缩测压软管(4)和至少一个压力表(3)。The pressure acquisition module comprises a telescopic pressure measuring hose (4) and at least one pressure gauge (3). 2.根据权利要求1所述的移动式消防车水力性能检测系统，其特征在于：2. The mobile fire truck hydraulic performance detection system according to claim 1, characterized in that: 所述流量采集模块设置在消防车水泵出口管上，用于采集消防车的水泵流量；所述压力采集模块中的伸缩测压软管(4)设置在消防车水泵的进口及出口的压力测点位置上，用于采集消防车水泵的进口压力和出口压力；所述温度采集模块设置在消防车分动箱壳体和齿轮箱壳体上，用于采集消防车分动箱(10)和齿轮箱不同位置的温升状态；所述转速采集模块设置在消防车万向节联轴器(9)上，用于采集消防车输出转速；所述车辆信息采集模块设置在消防车ECU接口上，用于采集消防车发动机参数。The flow acquisition module is arranged on the outlet pipe of the fire truck water pump and is used to acquire the water pump flow of the fire truck; the telescopic pressure measuring hose (4) in the pressure acquisition module is arranged at the pressure measuring point positions of the inlet and outlet of the fire truck water pump and is used to acquire the inlet pressure and outlet pressure of the fire truck water pump; the temperature acquisition module is arranged on the transfer case housing and the gear case housing of the fire truck and is used to acquire the temperature rise status of the transfer case (10) and the gear case at different positions of the fire truck; the speed acquisition module is arranged on the universal joint coupling (9) of the fire truck and is used to acquire the output speed of the fire truck; the vehicle information acquisition module is arranged on the ECU interface of the fire truck and is used to acquire the engine parameters of the fire truck. 3.根据权利要求1或2所述的移动式消防车水力性能检测系统，其特征在于：3. The mobile fire truck hydraulic performance detection system according to claim 1 or 2, characterized in that: 所述流量采集模块为超声波传感器(18)；所述压力采集模块包括出口压力传感器(16)和入口压力传感器(17)；所述温度采集模块包括齿轮箱温度传感器(15)和分动箱温度传感器(13)；所述转速采集模块为光电转速传感器(14)所述车辆信息采集模块为CAN总线通信模块(12)。The flow acquisition module is an ultrasonic sensor (18); the pressure acquisition module includes an outlet pressure sensor (16) and an inlet pressure sensor (17); the temperature acquisition module includes a gearbox temperature sensor (15) and a transfer case temperature sensor (13); the speed acquisition module is a photoelectric speed sensor (14); and the vehicle information acquisition module is a CAN bus communication module (12). 4.根据权利要求3所述的移动式消防车水力性能检测系统，其特征在于：所述移动机柜(1)底部安装有4个移动轮。4. The mobile fire truck hydraulic performance detection system according to claim 3, characterized in that four moving wheels are installed at the bottom of the mobile cabinet (1). 5.根据权利要求4所述的移动式消防车水力性能检测系统，其特征在于：还包括可移动的试验水池(19)。5. The mobile fire truck hydraulic performance detection system according to claim 4, characterized in that it also includes a movable test water pool (19). 6.基于权利要求1-5任一所述移动式消防车水力性能检测系统的方法，其特征在于，包括以下步骤：6. The method according to any one of claims 1 to 5, wherein the method comprises the following steps: 1)数据采集1) Data Collection 将移动机柜(1)上的485信号采集模块(5)接口与待检测消防车(7)进行连接；其中，所述流量采集模块设置在消防车水泵出口管处；所述压力采集模块中的伸缩测压软管(4)与消防车水泵的进口及出口的压力测点位置连接；所述温度采集模块接口与消防车分动箱(10)壳体位置和齿轮箱壳体位置连接；所述转速采集模块接口与消防车万向节联轴器(9)连接；所述车辆信息采集模块接口与消防车ECU接口连接；The 485 signal acquisition module (5) interface on the mobile cabinet (1) is connected to the fire truck (7) to be detected; wherein the flow acquisition module is arranged at the outlet pipe of the fire truck water pump; the telescopic pressure measuring hose (4) in the pressure acquisition module is connected to the pressure measuring points at the inlet and outlet of the fire truck water pump; the temperature acquisition module interface is connected to the shell position of the fire truck transfer case (10) and the gear box shell position; the speed acquisition module interface is connected to the universal joint coupling (9) of the fire truck; and the vehicle information acquisition module interface is connected to the fire truck ECU interface; 在接满水的试验水池(19)中，将消防泵(11)的入口及出口分别通过水管(20)与试验水池(19)连接形成水循环；然后发动消防车的发动机8，启动消防泵(11)以最大扬程工作；In a test water pool (19) filled with water, the inlet and outlet of the fire pump (11) are connected to the test water pool (19) through water pipes (20) to form a water circulation; then the engine 8 of the fire truck is started to start the fire pump (11) to work at maximum head; 流量采集模块采集消防车(7)的水泵流量；压力采集模块采集消防车(7)的水泵压力；温度采集模块采集消防车(7)的分动箱(10)和齿轮箱不同位置的温度信息；车辆信息采集模块采集消防车(7)的发动机(8)参数；转速采集模块采集消防车(7)万向节联轴器的转速；The flow acquisition module acquires the water pump flow of the fire truck (7); the pressure acquisition module acquires the water pump pressure of the fire truck (7); the temperature acquisition module acquires temperature information at different positions of the transfer case (10) and the gear box of the fire truck (7); the vehicle information acquisition module acquires engine (8) parameters of the fire truck (7); and the speed acquisition module acquires the speed of the universal joint coupling of the fire truck (7); 2)数据处理2) Data processing 除消防车水泵压力数据直接送到压力表(3)之外，其余各个模块采集的数据转化为485协议信号传送到移动数据处理终端；所述移动数据处理终端，根据设定要求对485协议信号进行记录和分析，并将结果传送到工控机(2)的故障诊断终端；Except for the fire truck water pump pressure data which is directly sent to the pressure gauge (3), the data collected by the other modules are converted into 485 protocol signals and transmitted to the mobile data processing terminal; the mobile data processing terminal records and analyzes the 485 protocol signals according to the set requirements, and transmits the results to the fault diagnosis terminal of the industrial computer (2); 3)数据显示及诊断3) Data display and diagnosis 消防车的水泵压力数据显示在压力表(3)上；The water pump pressure data of the fire truck is displayed on the pressure gauge (3); 流量数据、消防车输出转速及发动机(8)参数显示在触摸显示屏上；Flow data, fire truck output speed and engine (8) parameters are displayed on the touch screen; 故障诊断终端将485协议信号中的时间数据和温度数据形成数据列表，并采用最小二乘法对该数据进行处理，基于离散数据点进行二次方程曲线拟合，并生成温升的N次曲线方程式，根据N次曲线方程式计算未来时段的温度，并在触摸显示屏上显示该计算结果。The fault diagnosis terminal forms a data list from the time data and temperature data in the 485 protocol signal, processes the data using the least squares method, performs quadratic equation curve fitting based on discrete data points, and generates an Nth-order curve equation for temperature rise. The temperature for future time periods is calculated based on the Nth-order curve equation and the calculation results are displayed on the touch screen. 7.根据权利要求6所述移动式消防车水力性能检测系统的方法，其特征在于，还包括报警步骤：7. The method of the mobile fire truck hydraulic performance detection system according to claim 6, further comprising an alarm step: 当计算结果预示未来时段温度将超过设定值，则报警灯(6)将进行灯光报警。When the calculation result indicates that the temperature in the future period will exceed the set value, the alarm light (6) will light an alarm.
CN202211530337.4A 2022-11-30 2022-11-30 Mobile fire truck hydraulic performance detection system and method Active CN115931385B (en)

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CN108490870A (en) * 2018-05-22 2018-09-04 河北鹏润安防科技有限公司 A kind of method of Intelligent fire-fighting test run platform and its implementing monitoring

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